1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620
// This file is part of Gear.
// Copyright (C) 2022-2024 Gear Technologies Inc.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//! This module contains the cost schedule and supporting code that constructs a
//! sane default schedule from a `WeightInfo` implementation.
use crate::{weights::WeightInfo, Config, CostsPerBlockOf, DbWeightOf};
use common::scheduler::SchedulingCostsPerBlock;
use frame_support::{traits::Get, weights::Weight};
use gear_core::{
code::MAX_WASM_PAGES_AMOUNT,
costs::{ExtCosts, InstantiationCosts, LazyPagesCosts, ProcessCosts, RentCosts, SyscallCosts},
message,
pages::{GearPage, WasmPage},
};
use gear_wasm_instrument::{
gas_metering::{MemoryGrowCost, Rules},
parity_wasm::elements::{Instruction, Module, SignExtInstruction, Type},
};
use pallet_gear_proc_macro::{ScheduleDebug, WeightDebug};
use scale_info::TypeInfo;
#[cfg(feature = "std")]
use serde::{Deserialize, Serialize};
use sp_runtime::{
codec::{Decode, Encode},
RuntimeDebug,
};
use sp_std::{marker::PhantomData, vec::Vec};
/// How many API calls are executed in a single batch. The reason for increasing the amount
/// of API calls in batches (per benchmark component increase) is so that the linear regression
/// has an easier time determining the contribution of that component.
pub const API_BENCHMARK_BATCH_SIZE: u32 = 80;
/// How many instructions are executed in a single batch. The reasoning is the same
/// as for `API_BENCHMARK_BATCH_SIZE`.
pub const INSTR_BENCHMARK_BATCH_SIZE: u32 = 500;
/// Constant for `stack_height` is calculated via `calc-stack-height` utility to be small enough
/// to avoid stack overflow in wasmer and wasmi executors.
/// To avoid potential stack overflow problems we have a panic in sandbox in case,
/// execution is ended with stack overflow error. So, process queue execution will be
/// stopped and we will be able to investigate the problem and decrease this constant if needed.
#[cfg(not(feature = "fuzz"))]
pub const STACK_HEIGHT_LIMIT: u32 = 36_743;
/// For the fuzzer, we take the maximum possible stack limit calculated by the `calc-stack-height`
/// utility, which would be suitable for Linux machines. This has a positive effect on code coverage.
#[cfg(feature = "fuzz")]
pub const FUZZER_STACK_HEIGHT_LIMIT: u32 = 65_000;
/// Maximum number of data segments in a wasm module.
/// It has been determined that the maximum number of data segments in a wasm module
/// does not exceed 1024 by a large margin.
pub const DATA_SEGMENTS_AMOUNT_LIMIT: u32 = 1024;
/// Maximum number of wasm tables in a wasm module.
/// The same limit also imposed by `wasmparser`,
/// see <https://github.com/bytecodealliance/wasm-tools/blob/main/crates/wasmparser/src/limits.rs>
pub const TABLE_NUMBER_LIMIT: u32 = 100;
/// Definition of the cost schedule and other parameterization for the wasm vm.
///
/// Its [`Default`] implementation is the designated way to initialize this type. It uses
/// the benchmarked information supplied by [`Config::WeightInfo`]. All of its fields are
/// public and can therefore be modified. For example in order to change some of the limits
/// and set a custom instruction weight version the following code could be used:
/// ```rust
/// use pallet_gear::{Schedule, Limits, InstructionWeights, Config};
///
/// fn create_schedule<T: Config>() -> Schedule<T> {
/// Schedule {
/// limits: Limits {
/// globals: 3,
/// locals: 3,
/// parameters: 3,
/// memory_pages: 16,
/// table_size: 3,
/// br_table_size: 3,
/// .. Default::default()
/// },
/// instruction_weights: InstructionWeights {
/// version: 5,
/// .. Default::default()
/// },
/// .. Default::default()
/// }
/// }
/// ```
///
/// # Note
///
/// Please make sure to bump the [`InstructionWeights::version`] whenever substantial
/// changes are made to its values.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[cfg_attr(feature = "std", serde(bound(serialize = "", deserialize = "")))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, ScheduleDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct Schedule<T: Config> {
/// Describes the upper limits on various metrics.
pub limits: Limits,
/// The weights for individual wasm instructions.
pub instruction_weights: InstructionWeights<T>,
/// The weights for each imported function a program is allowed to call.
pub syscall_weights: SyscallWeights<T>,
/// The weights for memory interaction.
pub memory_weights: MemoryWeights<T>,
/// The weights for renting.
pub rent_weights: RentWeights<T>,
/// The weights for database access.
pub db_weights: DbWeights<T>,
/// The weights for executing tasks.
pub task_weights: TaskWeights<T>,
/// The weights for instantiation of the module.
pub instantiation_weights: InstantiationWeights<T>,
/// WASM code instrumentation base cost.
pub code_instrumentation_cost: Weight,
/// WASM code instrumentation per-byte cost.
pub code_instrumentation_byte_cost: Weight,
/// Load allocations weight.
pub load_allocations_weight: Weight,
}
/// Describes the upper limits on various metrics.
///
/// # Note
///
/// The values in this struct should never be decreased. The reason is that decreasing those
/// values will break existing programs which are above the new limits when a
/// re-instrumentation is triggered.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, RuntimeDebug, TypeInfo)]
pub struct Limits {
/// Maximum allowed stack height in number of elements.
///
/// See <https://wiki.parity.io/WebAssembly-StackHeight> to find out
/// how the stack frame cost is calculated. Each element can be of one of the
/// wasm value types. This means the maximum size per element is 64bit.
///
/// # Note
///
/// It is safe to disable (pass `None`) the `stack_height` when the execution engine
/// is part of the runtime and hence there can be no indeterminism between different
/// client resident execution engines.
pub stack_height: Option<u32>,
/// Maximum number of globals a module is allowed to declare.
///
/// Globals are not limited through the linear memory limit `memory_pages`.
pub globals: u32,
/// Maximum number of locals a function can have.
///
/// As wasm engine initializes each of the local, we need to limit their number to confine
/// execution costs.
pub locals: u32,
/// Maximum numbers of parameters a function can have.
///
/// Those need to be limited to prevent a potentially exploitable interaction with
/// the stack height instrumentation: The costs of executing the stack height
/// instrumentation for an indirectly called function scales linearly with the amount
/// of parameters of this function. Because the stack height instrumentation itself is
/// is not weight metered its costs must be static (via this limit) and included in
/// the costs of the instructions that cause them (call, call_indirect).
pub parameters: u32,
/// Maximum number of memory pages allowed for a program.
pub memory_pages: u16,
/// Maximum number of elements allowed in a table.
///
/// Currently, the only type of element that is allowed in a table is funcref.
pub table_size: u32,
/// Maximum number of tables allowed for a program.
/// The same limit also imposed by `wasmparser`,
/// see <https://github.com/bytecodealliance/wasm-tools/blob/main/crates/wasmparser/src/limits.rs>
pub table_number: u32,
/// Maximum number of elements that can appear as immediate value to the br_table instruction.
pub br_table_size: u32,
/// The maximum length of a subject in bytes used for PRNG generation.
pub subject_len: u32,
/// The maximum nesting level of the call stack.
pub call_depth: u32,
/// The maximum size of a message payload in bytes.
pub payload_len: u32,
/// The maximum length of a program code in bytes. This limit applies to the instrumented
/// version of the code. Therefore `instantiate_with_code` can fail even when supplying
/// a wasm binary below this maximum size.
pub code_len: u32,
/// The maximum number of wasm data segments allowed for a program.
pub data_segments_amount: u32,
}
/// Describes the weight for all categories of supported wasm instructions.
///
/// There there is one field for each wasm instruction that describes the weight to
/// execute one instruction of that name. There are a few exceptions:
///
/// 1. If there is a i64 and a i32 variant of an instruction we use the weight
/// of the former for both.
/// 2. The following instructions are free of charge because they merely structure the
/// wasm module and cannot be spammed without making the module invalid (and rejected):
/// End, Unreachable, Return, Else
/// 3. The following instructions cannot be benchmarked because they are removed by any
/// real world execution engine as a preprocessing step and therefore don't yield a
/// meaningful benchmark result. However, in contrast to the instructions mentioned
/// in 2. they can be spammed. We price them with the same weight as the "default"
/// instruction (i64.const): Block, Loop, Nop
/// 4. We price both i64.const and drop as InstructionWeights.i64const / 2. The reason
/// for that is that we cannot benchmark either of them on its own but we need their
/// individual values to derive (by subtraction) the weight of all other instructions
/// that use them as supporting instructions. Supporting means mainly pushing arguments
/// and dropping return values in order to maintain a valid module.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, ScheduleDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct InstructionWeights<T: Config> {
/// Version of the instruction weights.
///
/// # Note
///
/// Should be incremented whenever any instruction weight is changed. The
/// reason is that changes to instruction weights require a re-instrumentation
/// in order to apply the changes to an already deployed code. The re-instrumentation
/// is triggered by comparing the version of the current schedule with the version the code was
/// instrumented with. Changes usually happen when pallet_gear is re-benchmarked.
///
/// Changes to other parts of the schedule should not increment the version in
/// order to avoid unnecessary re-instrumentations.
pub version: u32,
pub i64const: u32,
pub i64load: u32,
pub i32load: u32,
pub i64store: u32,
pub i32store: u32,
pub select: u32,
pub r#if: u32,
pub br: u32,
pub br_if: u32,
pub br_table: u32,
pub br_table_per_entry: u32,
pub call: u32,
pub call_indirect: u32,
pub call_indirect_per_param: u32,
pub call_per_local: u32,
pub local_get: u32,
pub local_set: u32,
pub local_tee: u32,
pub global_get: u32,
pub global_set: u32,
pub memory_current: u32,
pub i64clz: u32,
pub i32clz: u32,
pub i64ctz: u32,
pub i32ctz: u32,
pub i64popcnt: u32,
pub i32popcnt: u32,
pub i64eqz: u32,
pub i32eqz: u32,
pub i32extend8s: u32,
pub i32extend16s: u32,
pub i64extend8s: u32,
pub i64extend16s: u32,
pub i64extend32s: u32,
pub i64extendsi32: u32,
pub i64extendui32: u32,
pub i32wrapi64: u32,
pub i64eq: u32,
pub i32eq: u32,
pub i64ne: u32,
pub i32ne: u32,
pub i64lts: u32,
pub i32lts: u32,
pub i64ltu: u32,
pub i32ltu: u32,
pub i64gts: u32,
pub i32gts: u32,
pub i64gtu: u32,
pub i32gtu: u32,
pub i64les: u32,
pub i32les: u32,
pub i64leu: u32,
pub i32leu: u32,
pub i64ges: u32,
pub i32ges: u32,
pub i64geu: u32,
pub i32geu: u32,
pub i64add: u32,
pub i32add: u32,
pub i64sub: u32,
pub i32sub: u32,
pub i64mul: u32,
pub i32mul: u32,
pub i64divs: u32,
pub i32divs: u32,
pub i64divu: u32,
pub i32divu: u32,
pub i64rems: u32,
pub i32rems: u32,
pub i64remu: u32,
pub i32remu: u32,
pub i64and: u32,
pub i32and: u32,
pub i64or: u32,
pub i32or: u32,
pub i64xor: u32,
pub i32xor: u32,
pub i64shl: u32,
pub i32shl: u32,
pub i64shrs: u32,
pub i32shrs: u32,
pub i64shru: u32,
pub i32shru: u32,
pub i64rotl: u32,
pub i32rotl: u32,
pub i64rotr: u32,
pub i32rotr: u32,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes the weight for each imported function that a program is allowed to call.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, WeightDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct SyscallWeights<T: Config> {
/// Weight of calling `alloc`.
pub alloc: Weight,
/// Weight of calling `free`.
pub free: Weight,
/// Weight of calling `free_range`.
pub free_range: Weight,
/// Weight of calling `free_range` per page.
pub free_range_per_page: Weight,
/// Weight of calling `gr_reserve_gas`.
pub gr_reserve_gas: Weight,
/// Weight of calling `gr_unreserve_gas`
pub gr_unreserve_gas: Weight,
/// Weight of calling `gr_system_reserve_gas`
pub gr_system_reserve_gas: Weight,
/// Weight of calling `gr_gas_available`.
pub gr_gas_available: Weight,
/// Weight of calling `gr_message_id`.
pub gr_message_id: Weight,
/// Weight of calling `gr_program_id`.
pub gr_program_id: Weight,
/// Weight of calling `gr_source`.
pub gr_source: Weight,
/// Weight of calling `gr_value`.
pub gr_value: Weight,
/// Weight of calling `gr_value_available`.
pub gr_value_available: Weight,
/// Weight of calling `gr_size`.
pub gr_size: Weight,
/// Weight of calling `gr_read`.
pub gr_read: Weight,
/// Weight per payload byte by `gr_read`.
pub gr_read_per_byte: Weight,
/// Weight of calling `gr_env_vars`.
pub gr_env_vars: Weight,
/// Weight of calling `gr_block_height`.
pub gr_block_height: Weight,
/// Weight of calling `gr_block_timestamp`.
pub gr_block_timestamp: Weight,
/// Weight of calling `gr_random`.
pub gr_random: Weight,
/// Weight of calling `gr_reply_deposit`.
pub gr_reply_deposit: Weight,
/// Weight of calling `gr_send`.
pub gr_send: Weight,
/// Weight per payload byte in `gr_send`.
pub gr_send_per_byte: Weight,
/// Weight of calling `gr_send_wgas`.
pub gr_send_wgas: Weight,
/// Weight per payload byte in `gr_send_wgas`.
pub gr_send_wgas_per_byte: Weight,
/// Weight of calling `gr_value_available`.
pub gr_send_init: Weight,
/// Weight of calling `gr_send_push`.
pub gr_send_push: Weight,
/// Weight per payload byte by `gr_send_push`.
pub gr_send_push_per_byte: Weight,
/// Weight of calling `gr_send_commit`.
pub gr_send_commit: Weight,
/// Weight of calling `gr_send_commit_wgas`.
pub gr_send_commit_wgas: Weight,
/// Weight of calling `gr_reservation_send`.
pub gr_reservation_send: Weight,
/// Weight per payload byte in `gr_reservation_send`.
pub gr_reservation_send_per_byte: Weight,
/// Weight of calling `gr_reservation_send_commit`.
pub gr_reservation_send_commit: Weight,
/// Weight of calling `gr_reply_commit`.
pub gr_reply_commit: Weight,
/// Weight of calling `gr_reply_commit_wgas`.
pub gr_reply_commit_wgas: Weight,
/// Weight of calling `gr_reservation_reply`.
pub gr_reservation_reply: Weight,
/// Weight of calling `gr_reservation_reply` per one payload byte.
pub gr_reservation_reply_per_byte: Weight,
/// Weight of calling `gr_reservation_reply_commit`.
pub gr_reservation_reply_commit: Weight,
/// Weight of calling `gr_reply_push`.
pub gr_reply_push: Weight,
/// Weight of calling `gr_reply`.
pub gr_reply: Weight,
/// Weight of calling `gr_reply` per one payload byte.
pub gr_reply_per_byte: Weight,
/// Weight of calling `gr_reply_wgas`.
pub gr_reply_wgas: Weight,
/// Weight of calling `gr_reply_wgas` per one payload byte.
pub gr_reply_wgas_per_byte: Weight,
/// Weight per payload byte by `gr_reply_push`.
pub gr_reply_push_per_byte: Weight,
/// Weight of calling `gr_reply_to`.
pub gr_reply_to: Weight,
/// Weight of calling `gr_signal_code`.
pub gr_signal_code: Weight,
/// Weight of calling `gr_signal_from`.
pub gr_signal_from: Weight,
/// Weight of calling `gr_reply_input`.
pub gr_reply_input: Weight,
/// Weight of calling `gr_reply_input_wgas`.
pub gr_reply_input_wgas: Weight,
/// Weight of calling `gr_reply_push_input`.
pub gr_reply_push_input: Weight,
/// Weight per payload byte by `gr_reply_push_input`.
pub gr_reply_push_input_per_byte: Weight,
/// Weight of calling `gr_send_input`.
pub gr_send_input: Weight,
/// Weight of calling `gr_send_input_wgas`.
pub gr_send_input_wgas: Weight,
/// Weight of calling `gr_send_push_input`.
pub gr_send_push_input: Weight,
/// Weight per payload byte by `gr_send_push_input`.
pub gr_send_push_input_per_byte: Weight,
/// Weight of calling `gr_debug`.
pub gr_debug: Weight,
/// Weight per payload byte by `gr_debug_per_byte`.
pub gr_debug_per_byte: Weight,
/// Weight of calling `gr_reply_code`.
pub gr_reply_code: Weight,
/// Weight of calling `gr_exit`.
pub gr_exit: Weight,
/// Weight of calling `gr_leave`.
pub gr_leave: Weight,
/// Weight of calling `gr_wait`.
pub gr_wait: Weight,
/// Weight of calling `gr_wait_for`.
pub gr_wait_for: Weight,
/// Weight of calling `gr_wait_up_to`.
pub gr_wait_up_to: Weight,
/// Weight of calling `gr_wake`.
pub gr_wake: Weight,
/// Weight of calling `gr_create_program`.
pub gr_create_program: Weight,
/// Weight per payload byte in `gr_create_program`.
pub gr_create_program_payload_per_byte: Weight,
/// Weight per salt byte in `gr_create_program`
pub gr_create_program_salt_per_byte: Weight,
/// Weight of calling `create_program_wgas`.
pub gr_create_program_wgas: Weight,
/// Weight per payload byte by `create_program_wgas`.
pub gr_create_program_wgas_payload_per_byte: Weight,
/// Weight per salt byte by `create_program_wgas`.
pub gr_create_program_wgas_salt_per_byte: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes the weight for memory interaction.
///
/// Each weight with `lazy_pages_` prefix includes weight for storage read,
/// because for each first page access we need to at least check whether page exists in storage.
/// But they do not include cost for loading page data from storage into program memory.
/// This weight is taken in account separately, when loading occurs.
///
/// Lazy-pages write accesses does not include cost for uploading page data to storage,
/// because uploading happens after execution, so benchmarks do not include this cost.
/// But they include cost for processing changed page data in runtime.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, WeightDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct MemoryWeights<T: Config> {
/// Cost per one [GearPage] signal `read` processing in lazy-pages,
pub lazy_pages_signal_read: Weight,
/// Cost per one [GearPage] signal `write` processing in lazy-pages,
pub lazy_pages_signal_write: Weight,
/// Cost per one [GearPage] signal `write after read` processing in lazy-pages,
pub lazy_pages_signal_write_after_read: Weight,
/// Cost per one [GearPage] host func `read` access processing in lazy-pages,
pub lazy_pages_host_func_read: Weight,
/// Cost per one [GearPage] host func `write` access processing in lazy-pages,
pub lazy_pages_host_func_write: Weight,
/// Cost per one [GearPage] host func `write after read` access processing in lazy-pages,
pub lazy_pages_host_func_write_after_read: Weight,
/// Cost per one [GearPage] data loading from storage and moving it in program memory.
/// Does not include cost for storage read, because it is taken in account separately.
pub load_page_data: Weight,
/// Cost per one [GearPage] uploading data to storage.
/// Does not include cost for processing changed page data in runtime,
/// cause it is taken in account separately.
pub upload_page_data: Weight,
/// Cost per one [WasmPage] for memory growing.
pub mem_grow: Weight,
/// Cost per one [WasmPage] for memory growing.
pub mem_grow_per_page: Weight,
/// Cost per one [GearPage].
/// When we read page data from storage in para-chain, then it should be sent to relay-chain,
/// in order to use it for process queue execution. So, reading from storage cause
/// additional resources consumption after block(s) production on para-chain.
pub parachain_read_heuristic: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes the weight for instantiation of the module.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, ScheduleDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct InstantiationWeights<T: Config> {
/// WASM module code section instantiation per byte cost.
pub code_section_per_byte: Weight,
/// WASM module data section instantiation per byte cost.
pub data_section_per_byte: Weight,
/// WASM module global section instantiation per byte cost.
pub global_section_per_byte: Weight,
/// WASM module table section instantiation per byte cost.
pub table_section_per_byte: Weight,
/// WASM module element section instantiation per byte cost.
pub element_section_per_byte: Weight,
/// WASM module type section instantiation per byte cost.
pub type_section_per_byte: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes the weight for renting.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, WeightDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct RentWeights<T: Config> {
/// Holding message in waitlist weight.
pub waitlist: Weight,
/// Holding message in dispatch stash weight.
pub dispatch_stash: Weight,
/// Holding reservation weight.
pub reservation: Weight,
/// Holding message in mailbox weight.
pub mailbox: Weight,
/// The minimal gas amount for message to be inserted in mailbox.
pub mailbox_threshold: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes DB access weights.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, WeightDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct DbWeights<T: Config> {
pub read: Weight,
pub read_per_byte: Weight,
pub write: Weight,
pub write_per_byte: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
/// Describes weights for running tasks.
#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
#[derive(Clone, Encode, Decode, PartialEq, Eq, WeightDebug, TypeInfo)]
#[scale_info(skip_type_params(T))]
pub struct TaskWeights<T: Config> {
pub remove_gas_reservation: Weight,
pub send_user_message_to_mailbox: Weight,
pub send_user_message: Weight,
pub send_dispatch: Weight,
pub wake_message: Weight,
pub wake_message_no_wake: Weight,
pub remove_from_waitlist: Weight,
pub remove_from_mailbox: Weight,
/// The type parameter is used in the default implementation.
#[codec(skip)]
#[cfg_attr(feature = "std", serde(skip))]
pub _phantom: PhantomData<T>,
}
impl<T: Config> Default for TaskWeights<T> {
fn default() -> Self {
type W<T> = <T as Config>::WeightInfo;
Self {
remove_gas_reservation: W::<T>::tasks_remove_gas_reservation(),
send_user_message_to_mailbox: W::<T>::tasks_send_user_message_to_mailbox(),
send_user_message: W::<T>::tasks_send_user_message(),
send_dispatch: W::<T>::tasks_send_dispatch(),
wake_message: W::<T>::tasks_wake_message(),
wake_message_no_wake: W::<T>::tasks_wake_message_no_wake(),
remove_from_waitlist: W::<T>::tasks_remove_from_waitlist(),
remove_from_mailbox: W::<T>::tasks_remove_from_mailbox(),
_phantom: PhantomData,
}
}
}
#[inline]
fn cost(w: fn(u32) -> Weight) -> Weight {
Weight::from_parts(w(1).saturating_sub(w(0)).ref_time(), 0)
}
#[inline]
fn cost_byte(w: fn(u32) -> Weight) -> Weight {
Weight::from_parts(cost(w).ref_time() / 1024, 0)
}
#[inline]
fn cost_batched(w: fn(u32) -> Weight) -> Weight {
Weight::from_parts(cost(w).ref_time() / u64::from(API_BENCHMARK_BATCH_SIZE), 0)
}
#[inline]
fn cost_byte_batched(w: fn(u32) -> Weight) -> Weight {
Weight::from_parts(cost_batched(w).ref_time() / 1024, 0)
}
#[inline]
fn cost_byte_batched_args(w: fn(u32, u32) -> Weight, arg1: u32, arg2: u32) -> Weight {
Weight::from_parts(
w(arg1, arg2).saturating_sub(w(0, 0)).ref_time()
/ u64::from(API_BENCHMARK_BATCH_SIZE)
/ 1024,
0,
)
}
#[inline]
fn cost_zero(w: fn(u32) -> Weight) -> Weight {
let ref_time = w(0).ref_time();
Weight::from_parts(ref_time, w(0).proof_size())
}
#[inline]
fn cost_instr_no_params_with_batch_size(w: fn(u32) -> Weight) -> u32 {
((w(1).saturating_sub(w(0))).ref_time() / u64::from(INSTR_BENCHMARK_BATCH_SIZE)) as u32
}
#[inline]
fn cost_instr<T: Config>(w: fn(u32) -> Weight, num_params: u32) -> u32 {
cost_instr_no_params_with_batch_size(w)
.saturating_sub(cost_i64const::<T>().saturating_mul(num_params))
}
#[inline]
fn cost_i64const<T: Config>() -> u32 {
type W<T> = <T as Config>::WeightInfo;
// Since we cannot directly benchmark the weight of `i64.const` (or `i32.const`; we consider their weights to be the same for our purposes),
// we estimate it as the difference between the benchmarks `instr_call_const` and `instr_call`.
// The difference between these two benchmarks will give us the weight of `i64.const`, which for x86-64
// can be represented by a single `mov` instruction with the embedded const parameter
// (for e.x: `mov reg,0xDEADBEAFDEABEAF`).
//
// This approach may work, but the estimation is not very accurate.
// To reduce the impact of this inaccuracy on the assessment of other instructions
// (as we subtract the weight of `i64.const` from other instructions),
// we introduce a weight division coefficient called `I64CONST_WEIGHT_DIVIDER`.
// This helps bring the weight of `i64.const` closer to that of the x86-64 `mov` instruction's estimate.
const I64CONST_WEIGHT_DIVIDER: u32 = 2;
cost_instr_no_params_with_batch_size(W::<T>::instr_i64const) / I64CONST_WEIGHT_DIVIDER
}
impl<T: Config> Default for Schedule<T> {
fn default() -> Self {
type W<T> = <T as Config>::WeightInfo;
Self {
limits: Default::default(),
instruction_weights: Default::default(),
syscall_weights: Default::default(),
memory_weights: Default::default(),
rent_weights: Default::default(),
db_weights: Default::default(),
task_weights: Default::default(),
instantiation_weights: Default::default(),
code_instrumentation_cost: cost_zero(W::<T>::reinstrument_per_kb),
code_instrumentation_byte_cost: cost_byte(W::<T>::reinstrument_per_kb),
load_allocations_weight: cost(W::<T>::load_allocations_per_interval),
}
}
}
impl Default for Limits {
fn default() -> Self {
Self {
#[cfg(not(feature = "fuzz"))]
stack_height: Some(STACK_HEIGHT_LIMIT),
#[cfg(feature = "fuzz")]
stack_height: Some(FUZZER_STACK_HEIGHT_LIMIT),
data_segments_amount: DATA_SEGMENTS_AMOUNT_LIMIT,
globals: 256,
locals: 1024,
parameters: 128,
memory_pages: MAX_WASM_PAGES_AMOUNT,
// 4k function pointers (This is in count not bytes).
table_size: 4096,
table_number: TABLE_NUMBER_LIMIT,
br_table_size: 256,
subject_len: 32,
call_depth: 32,
payload_len: message::MAX_PAYLOAD_SIZE as u32,
code_len: 512 * 1024,
}
}
}
impl<T: Config> Default for InstructionWeights<T> {
fn default() -> Self {
// # Wasmer's compiler optimization (relevant for version 4.3.5 single-pass compiler for x86-64 target)
//
// Wasmer's single-pass compiler implements an optimization for certain wasm i32 instructions where
// `i64const`/`i32const` parameters can be embedded into native x86-64 instructions.
//
// This optimization works for the following types of instructions:
//
// - Single-parameter i32 instructions that compile to a single x86-64 `mov` instruction,
// e.g., `i64.extend_u/i32`, `i32.wrap_i64`.
// - Binary operation i32 instructions that compile to an x86-64 `cmp` instruction,
// e.g., `i32.eq`, `i32.ne`, `i32.lt_s`, `i32.lt_u`, etc.
// - `i32.add`, `i32.sub` instructions where one parameter is embedded into the instruction.
// - Several logical i32 instructions: `i32.and`, `i32.or`, `i32.xor`.
//
// See below for the assembly listings of the mentioned instructions.
type W<T> = <T as Config>::WeightInfo;
Self {
version: 1620,
i64const: cost_i64const::<T>(),
i64load: cost_instr::<T>(W::<T>::instr_i64load, 0),
i32load: cost_instr::<T>(W::<T>::instr_i32load, 0),
i64store: cost_instr::<T>(W::<T>::instr_i64store, 1),
i32store: cost_instr::<T>(W::<T>::instr_i32store, 0),
select: cost_instr::<T>(W::<T>::instr_select, 2),
r#if: cost_instr::<T>(W::<T>::instr_if, 0),
br: cost_instr::<T>(W::<T>::instr_br, 0),
br_if: cost_instr::<T>(W::<T>::instr_br_if, 1),
br_table: cost_instr::<T>(W::<T>::instr_br_table, 0),
br_table_per_entry: cost_instr::<T>(W::<T>::instr_br_table_per_entry, 0),
call: cost_instr::<T>(W::<T>::instr_call, 2),
call_indirect: cost_instr::<T>(W::<T>::instr_call_indirect, 1),
call_indirect_per_param: cost_instr::<T>(W::<T>::instr_call_indirect_per_param, 1),
call_per_local: cost_instr::<T>(W::<T>::instr_call_per_local, 1),
local_get: cost_instr::<T>(W::<T>::instr_local_get, 0),
local_set: cost_instr::<T>(W::<T>::instr_local_set, 1),
local_tee: cost_instr::<T>(W::<T>::instr_local_tee, 1),
global_get: cost_instr::<T>(W::<T>::instr_global_get, 0),
global_set: cost_instr::<T>(W::<T>::instr_global_set, 1),
memory_current: cost_instr::<T>(W::<T>::instr_memory_current, 1),
i64clz: cost_instr::<T>(W::<T>::instr_i64clz, 1),
i32clz: cost_instr::<T>(W::<T>::instr_i32clz, 1),
i64ctz: cost_instr::<T>(W::<T>::instr_i64ctz, 1),
i32ctz: cost_instr::<T>(W::<T>::instr_i32ctz, 1),
i64popcnt: cost_instr::<T>(W::<T>::instr_i64popcnt, 1),
i32popcnt: cost_instr::<T>(W::<T>::instr_i32popcnt, 1),
i64eqz: cost_instr::<T>(W::<T>::instr_i64eqz, 1),
i32eqz: cost_instr::<T>(W::<T>::instr_i32eqz, 1),
// `i32extend8s` compiles to:
// ```assembly
// mov rax,0x3b578dc7 <- i64const
// movsx esi,al
// ```
i32extend8s: cost_instr::<T>(W::<T>::instr_i32extend8s, 1),
// `i32extend16s` compiles to:
// ```assembly
// mov rax,0xffffffffdd0b1b34 <- i64const
// movsx esi,ax
// ```
i32extend16s: cost_instr::<T>(W::<T>::instr_i32extend16s, 1),
i64extend8s: cost_instr::<T>(W::<T>::instr_i64extend8s, 1),
i64extend16s: cost_instr::<T>(W::<T>::instr_i64extend16s, 1),
i64extend32s: cost_instr::<T>(W::<T>::instr_i64extend32s, 1),
// `i64extendsi32` compiles to:
// ```assembly
// mov rax,0xffffffffdd0b1b34 <- i64const
// movsxd rsi,eax
// ```
i64extendsi32: cost_instr::<T>(W::<T>::instr_i64extendsi32, 1),
// `i64extendui32` compiles to:
// ```assembly
// mov esi,0x3b578dc7 <- i64const embedded in the instruction
// ```
i64extendui32: cost_instr::<T>(W::<T>::instr_i64extendui32, 0),
// `i32wrapi64` compiles to:
// ```assembly
// mov esi,0x3b578dc7 <- i64const embedded in the instruction
// ```
i32wrapi64: cost_instr::<T>(W::<T>::instr_i32wrapi64, 0),
i64eq: cost_instr::<T>(W::<T>::instr_i64eq, 2),
// `i32eq` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// cmp eax,0xdd0b1b34 <- i64const embedded in the instruction
// setz sil
// and esi,0xff
// ```
i32eq: cost_instr::<T>(W::<T>::instr_i32eq, 1),
i64ne: cost_instr::<T>(W::<T>::instr_i64ne, 2),
// `i32ne` compiles to:
// ```assembly
// mov eax,0xa9601ba6 <- i64const
// cmp eax,0x4b51bf3 <- i64const embedded in the instruction
// setnz sil
// and esi,0xff
// ```
i32ne: cost_instr::<T>(W::<T>::instr_i32ne, 1),
i64lts: cost_instr::<T>(W::<T>::instr_i64lts, 2),
// `i32lts` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// cmp eax,0xdd0b1b34 <- i64const embedded in the instruction
// setl sil
// and esi,0xff
// ```
i32lts: cost_instr::<T>(W::<T>::instr_i32lts, 1),
i64ltu: cost_instr::<T>(W::<T>::instr_i64ltu, 2),
// `i32ltu` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32ltu: cost_instr::<T>(W::<T>::instr_i32ltu, 1),
i64gts: cost_instr::<T>(W::<T>::instr_i64gts, 2),
// `i32gts` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32gts: cost_instr::<T>(W::<T>::instr_i32gts, 1),
i64gtu: cost_instr::<T>(W::<T>::instr_i64gtu, 2),
// `i32gtu` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32gtu: cost_instr::<T>(W::<T>::instr_i32gtu, 1),
i64les: cost_instr::<T>(W::<T>::instr_i64les, 2),
// `i32les` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32les: cost_instr::<T>(W::<T>::instr_i32les, 1),
i64leu: cost_instr::<T>(W::<T>::instr_i64leu, 2),
// `i32leu` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32leu: cost_instr::<T>(W::<T>::instr_i32leu, 1),
i64ges: cost_instr::<T>(W::<T>::instr_i64ges, 2),
// `i32ges` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32ges: cost_instr::<T>(W::<T>::instr_i32ges, 1),
i64geu: cost_instr::<T>(W::<T>::instr_i64geu, 2),
// `i32geu` compiles similarly to other i32 comparisons instructions,
// so we subtract `i64const` (`num_params`) only 1 time.
i32geu: cost_instr::<T>(W::<T>::instr_i32geu, 1),
i64add: cost_instr::<T>(W::<T>::instr_i64add, 2),
// `i32add` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// add eax,0xdd0b1b34 <- i64const embedded in the instruction
// mov esi,eax
// ```
i32add: cost_instr::<T>(W::<T>::instr_i32add, 1),
i64sub: cost_instr::<T>(W::<T>::instr_i64sub, 2),
// `i32sub` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// sub eax,0xdd0b1b34 <- i64const embedded in the instruction
// mov esi,eax
// ```
i32sub: cost_instr::<T>(W::<T>::instr_i32sub, 1),
i64mul: cost_instr::<T>(W::<T>::instr_i64mul, 2),
i32mul: cost_instr::<T>(W::<T>::instr_i32mul, 2),
i64divs: cost_instr::<T>(W::<T>::instr_i64divs, 2),
i32divs: cost_instr::<T>(W::<T>::instr_i32divs, 2),
i64divu: cost_instr::<T>(W::<T>::instr_i64divu, 2),
i32divu: cost_instr::<T>(W::<T>::instr_i32divu, 2),
i64rems: cost_instr::<T>(W::<T>::instr_i64rems, 2),
i32rems: cost_instr::<T>(W::<T>::instr_i32rems, 2),
i64remu: cost_instr::<T>(W::<T>::instr_i64remu, 2),
i32remu: cost_instr::<T>(W::<T>::instr_i32remu, 2),
i64and: cost_instr::<T>(W::<T>::instr_i64and, 2),
// `i32and` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// and eax,0xdd0b1b34 <- i64const embedded in the instruction
// mov esi,eax
// ```
i32and: cost_instr::<T>(W::<T>::instr_i32and, 1),
i64or: cost_instr::<T>(W::<T>::instr_i64or, 2),
// `i32or` compiles to:
// ```assembly
// mov eax,0xf9e1253c <- i64const
// or eax,0xeaf224f <- i64const embedded in the instruction
// mov esi,eax
// ```
i32or: cost_instr::<T>(W::<T>::instr_i32or, 1),
i64xor: cost_instr::<T>(W::<T>::instr_i64xor, 2),
// `i32xor` compiles to:
// ```assembly
// mov eax,0x3b578dc7 <- i64const
// xor eax,0xdd0b1b34 <- i64const embedded in the instruction
// mov esi,eax
// ```
i32xor: cost_instr::<T>(W::<T>::instr_i32xor, 1),
i64shl: cost_instr::<T>(W::<T>::instr_i64shl, 2),
i32shl: cost_instr::<T>(W::<T>::instr_i32shl, 2),
i64shrs: cost_instr::<T>(W::<T>::instr_i64shrs, 2),
i32shrs: cost_instr::<T>(W::<T>::instr_i32shrs, 2),
i64shru: cost_instr::<T>(W::<T>::instr_i64shru, 2),
i32shru: cost_instr::<T>(W::<T>::instr_i32shru, 2),
i64rotl: cost_instr::<T>(W::<T>::instr_i64rotl, 2),
i32rotl: cost_instr::<T>(W::<T>::instr_i32rotl, 2),
i64rotr: cost_instr::<T>(W::<T>::instr_i64rotr, 2),
i32rotr: cost_instr::<T>(W::<T>::instr_i32rotr, 2),
_phantom: PhantomData,
}
}
}
impl<T: Config> Default for SyscallWeights<T> {
fn default() -> Self {
type W<T> = <T as Config>::WeightInfo;
Self {
gr_reply_deposit: cost_batched(W::<T>::gr_reply_deposit)
.saturating_sub(cost_batched(W::<T>::gr_send)),
gr_send: cost_batched(W::<T>::gr_send),
gr_send_per_byte: cost_byte_batched(W::<T>::gr_send_per_kb),
gr_send_wgas: cost_batched(W::<T>::gr_send_wgas),
gr_send_wgas_per_byte: cost_byte_batched(W::<T>::gr_send_wgas_per_kb),
gr_send_init: cost_batched(W::<T>::gr_send_init),
gr_send_push: cost_batched(W::<T>::gr_send_push),
gr_send_push_per_byte: cost_byte_batched(W::<T>::gr_send_push_per_kb),
gr_send_commit: cost_batched(W::<T>::gr_send_commit),
gr_send_commit_wgas: cost_batched(W::<T>::gr_send_commit_wgas),
gr_reservation_send: cost_batched(W::<T>::gr_reservation_send),
gr_reservation_send_per_byte: cost_byte_batched(W::<T>::gr_reservation_send_per_kb),
gr_reservation_send_commit: cost_batched(W::<T>::gr_reservation_send_commit),
gr_send_input: cost_batched(W::<T>::gr_send_input),
gr_send_input_wgas: cost_batched(W::<T>::gr_send_input_wgas),
gr_send_push_input: cost_batched(W::<T>::gr_send_push_input),
gr_send_push_input_per_byte: cost_byte_batched(W::<T>::gr_send_push_input_per_kb),
gr_reply: cost(W::<T>::gr_reply),
gr_reply_per_byte: cost_byte(W::<T>::gr_reply_per_kb),
gr_reply_wgas: cost(W::<T>::gr_reply_wgas),
gr_reply_wgas_per_byte: cost_byte(W::<T>::gr_reply_wgas_per_kb),
gr_reply_push: cost_batched(W::<T>::gr_reply_push),
gr_reply_push_per_byte: cost_byte(W::<T>::gr_reply_push_per_kb),
gr_reply_commit: cost(W::<T>::gr_reply_commit),
gr_reply_commit_wgas: cost(W::<T>::gr_reply_commit_wgas),
gr_reservation_reply: cost(W::<T>::gr_reservation_reply),
gr_reservation_reply_per_byte: cost(W::<T>::gr_reservation_reply_per_kb),
gr_reservation_reply_commit: cost(W::<T>::gr_reservation_reply_commit),
gr_reply_input: cost(W::<T>::gr_reply_input),
gr_reply_input_wgas: cost(W::<T>::gr_reply_input_wgas),
gr_reply_push_input: cost_batched(W::<T>::gr_reply_push_input),
gr_reply_push_input_per_byte: cost_byte(W::<T>::gr_reply_push_input_per_kb),
alloc: cost_batched(W::<T>::alloc),
free: cost_batched(W::<T>::free),
free_range: cost_batched(W::<T>::free_range),
free_range_per_page: cost_batched(W::<T>::free_range_per_page),
gr_reserve_gas: cost(W::<T>::gr_reserve_gas),
gr_system_reserve_gas: cost_batched(W::<T>::gr_system_reserve_gas),
gr_unreserve_gas: cost(W::<T>::gr_unreserve_gas),
gr_gas_available: cost_batched(W::<T>::gr_gas_available),
gr_message_id: cost_batched(W::<T>::gr_message_id),
gr_program_id: cost_batched(W::<T>::gr_program_id),
gr_source: cost_batched(W::<T>::gr_source),
gr_value: cost_batched(W::<T>::gr_value),
gr_value_available: cost_batched(W::<T>::gr_value_available),
gr_size: cost_batched(W::<T>::gr_size),
gr_read: cost_batched(W::<T>::gr_read),
gr_read_per_byte: cost_byte_batched(W::<T>::gr_read_per_kb),
gr_env_vars: cost_batched(W::<T>::gr_env_vars),
gr_block_height: cost_batched(W::<T>::gr_block_height),
gr_block_timestamp: cost_batched(W::<T>::gr_block_timestamp),
gr_random: cost_batched(W::<T>::gr_random),
gr_debug: cost_batched(W::<T>::gr_debug),
gr_debug_per_byte: cost_byte_batched(W::<T>::gr_debug_per_kb),
gr_reply_to: cost_batched(W::<T>::gr_reply_to),
gr_signal_code: cost_batched(W::<T>::gr_signal_code),
gr_signal_from: cost_batched(W::<T>::gr_signal_from),
gr_reply_code: cost_batched(W::<T>::gr_reply_code),
gr_exit: cost(W::<T>::gr_exit),
gr_leave: cost(W::<T>::gr_leave),
gr_wait: cost(W::<T>::gr_wait),
gr_wait_for: cost(W::<T>::gr_wait_for),
gr_wait_up_to: cost(W::<T>::gr_wait_up_to),
gr_wake: cost_batched(W::<T>::gr_wake),
gr_create_program: cost_batched(W::<T>::gr_create_program),
gr_create_program_payload_per_byte: cost_byte_batched_args(
W::<T>::gr_create_program_per_kb,
1,
0,
),
gr_create_program_salt_per_byte: cost_byte_batched_args(
W::<T>::gr_create_program_per_kb,
0,
1,
),
gr_create_program_wgas: cost_batched(W::<T>::gr_create_program_wgas),
gr_create_program_wgas_payload_per_byte: cost_byte_batched_args(
W::<T>::gr_create_program_wgas_per_kb,
1,
0,
),
gr_create_program_wgas_salt_per_byte: cost_byte_batched_args(
W::<T>::gr_create_program_wgas_per_kb,
0,
1,
),
_phantom: PhantomData,
}
}
}
impl<T: Config> From<SyscallWeights<T>> for SyscallCosts {
fn from(val: SyscallWeights<T>) -> Self {
Self {
alloc: val.alloc.ref_time().into(),
free: val.free.ref_time().into(),
free_range: val.free_range.ref_time().into(),
free_range_per_page: val.free_range_per_page.ref_time().into(),
gr_reserve_gas: val.gr_reserve_gas.ref_time().into(),
gr_unreserve_gas: val.gr_unreserve_gas.ref_time().into(),
gr_system_reserve_gas: val.gr_system_reserve_gas.ref_time().into(),
gr_gas_available: val.gr_gas_available.ref_time().into(),
gr_message_id: val.gr_message_id.ref_time().into(),
gr_program_id: val.gr_program_id.ref_time().into(),
gr_source: val.gr_source.ref_time().into(),
gr_value: val.gr_value.ref_time().into(),
gr_value_available: val.gr_value_available.ref_time().into(),
gr_size: val.gr_size.ref_time().into(),
gr_read: val.gr_read.ref_time().into(),
gr_read_per_byte: val.gr_read_per_byte.ref_time().into(),
gr_env_vars: val.gr_env_vars.ref_time().into(),
gr_block_height: val.gr_block_height.ref_time().into(),
gr_block_timestamp: val.gr_block_timestamp.ref_time().into(),
gr_random: val.gr_random.ref_time().into(),
gr_reply_deposit: val.gr_reply_deposit.ref_time().into(),
gr_send: val.gr_send.ref_time().into(),
gr_send_per_byte: val.gr_send_per_byte.ref_time().into(),
gr_send_wgas: val.gr_send_wgas.ref_time().into(),
gr_send_wgas_per_byte: val.gr_send_wgas_per_byte.ref_time().into(),
gr_send_init: val.gr_send_init.ref_time().into(),
gr_send_push: val.gr_send_push.ref_time().into(),
gr_send_push_per_byte: val.gr_send_push_per_byte.ref_time().into(),
gr_send_commit: val.gr_send_commit.ref_time().into(),
gr_send_commit_wgas: val.gr_send_commit_wgas.ref_time().into(),
gr_reservation_send: val.gr_reservation_send.ref_time().into(),
gr_reservation_send_per_byte: val.gr_reservation_send_per_byte.ref_time().into(),
gr_reservation_send_commit: val.gr_reservation_send_commit.ref_time().into(),
gr_send_input: val.gr_send_input.ref_time().into(),
gr_send_input_wgas: val.gr_send_input_wgas.ref_time().into(),
gr_send_push_input: val.gr_send_push_input.ref_time().into(),
gr_send_push_input_per_byte: val.gr_send_push_input_per_byte.ref_time().into(),
gr_reply: val.gr_reply.ref_time().into(),
gr_reply_per_byte: val.gr_reply_per_byte.ref_time().into(),
gr_reply_wgas: val.gr_reply_wgas.ref_time().into(),
gr_reply_wgas_per_byte: val.gr_reply_wgas_per_byte.ref_time().into(),
gr_reply_push: val.gr_reply_push.ref_time().into(),
gr_reply_push_per_byte: val.gr_reply_push_per_byte.ref_time().into(),
gr_reply_commit: val.gr_reply_commit.ref_time().into(),
gr_reply_commit_wgas: val.gr_reply_commit_wgas.ref_time().into(),
gr_reservation_reply: val.gr_reservation_reply.ref_time().into(),
gr_reservation_reply_per_byte: val.gr_reservation_reply_per_byte.ref_time().into(),
gr_reservation_reply_commit: val.gr_reservation_reply_commit.ref_time().into(),
gr_reply_input: val.gr_reply_input.ref_time().into(),
gr_reply_input_wgas: val.gr_reply_input_wgas.ref_time().into(),
gr_reply_push_input: val.gr_reply_push_input.ref_time().into(),
gr_reply_push_input_per_byte: val.gr_reply_push_input_per_byte.ref_time().into(),
gr_debug: val.gr_debug.ref_time().into(),
gr_debug_per_byte: val.gr_debug_per_byte.ref_time().into(),
gr_reply_to: val.gr_reply_to.ref_time().into(),
gr_signal_code: val.gr_signal_code.ref_time().into(),
gr_signal_from: val.gr_signal_from.ref_time().into(),
gr_reply_code: val.gr_reply_code.ref_time().into(),
gr_exit: val.gr_exit.ref_time().into(),
gr_leave: val.gr_leave.ref_time().into(),
gr_wait: val.gr_wait.ref_time().into(),
gr_wait_for: val.gr_wait_for.ref_time().into(),
gr_wait_up_to: val.gr_wait_up_to.ref_time().into(),
gr_wake: val.gr_wake.ref_time().into(),
gr_create_program: val.gr_create_program.ref_time().into(),
gr_create_program_payload_per_byte: val
.gr_create_program_payload_per_byte
.ref_time()
.into(),
gr_create_program_salt_per_byte: val.gr_create_program_salt_per_byte.ref_time().into(),
gr_create_program_wgas: val.gr_create_program_wgas.ref_time().into(),
gr_create_program_wgas_payload_per_byte: val
.gr_create_program_wgas_payload_per_byte
.ref_time()
.into(),
gr_create_program_wgas_salt_per_byte: val
.gr_create_program_wgas_salt_per_byte
.ref_time()
.into(),
}
}
}
impl<T: Config> Default for MemoryWeights<T> {
fn default() -> Self {
// In benchmarks we calculate cost per wasm page,
// so here we must convert it to cost per gear page.
fn to_cost_per_gear_page(w: fn(u32) -> Weight) -> Weight {
Weight::from_parts(
cost(w).ref_time() / (WasmPage::SIZE / GearPage::SIZE) as u64,
0,
)
}
const KB_SIZE: u64 = 1024;
// Memory access thru host function benchmark uses a syscall,
// which accesses memory. So, we have to subtract corresponding syscall weight.
fn host_func_access(w: fn(u32) -> Weight, syscall: fn(u32) -> Weight) -> Weight {
let syscall_per_kb_weight = cost_batched(syscall).ref_time();
let syscall_per_gear_page_weight =
(syscall_per_kb_weight / KB_SIZE) * GearPage::SIZE as u64;
let ref_time = to_cost_per_gear_page(w)
.ref_time()
.saturating_sub(syscall_per_gear_page_weight);
Weight::from_parts(ref_time, 0)
}
const KB_AMOUNT_IN_ONE_GEAR_PAGE: u64 = GearPage::SIZE as u64 / KB_SIZE;
const {
assert!(KB_AMOUNT_IN_ONE_GEAR_PAGE > 0);
assert!(GearPage::SIZE as u64 % KB_SIZE == 0);
}
type W<T> = <T as Config>::WeightInfo;
Self {
lazy_pages_signal_read: to_cost_per_gear_page(W::<T>::lazy_pages_signal_read),
lazy_pages_signal_write: to_cost_per_gear_page(W::<T>::lazy_pages_signal_write),
lazy_pages_signal_write_after_read: to_cost_per_gear_page(
W::<T>::lazy_pages_signal_write_after_read,
),
lazy_pages_host_func_read: host_func_access(
W::<T>::lazy_pages_host_func_read,
W::<T>::gr_debug_per_kb,
),
lazy_pages_host_func_write: host_func_access(
W::<T>::lazy_pages_host_func_write,
W::<T>::gr_read_per_kb,
),
lazy_pages_host_func_write_after_read: host_func_access(
W::<T>::lazy_pages_host_func_write_after_read,
W::<T>::gr_read_per_kb,
),
// As you can see from calculation: `load_page_data` doesn't include weight for db read.
// This is correct situation, because this weight is already included in above
// lazy-pages weights.
load_page_data: to_cost_per_gear_page(W::<T>::lazy_pages_load_page_storage_data)
.saturating_sub(to_cost_per_gear_page(W::<T>::lazy_pages_signal_read)),
upload_page_data: cost(W::<T>::db_write_per_kb)
.saturating_mul(KB_AMOUNT_IN_ONE_GEAR_PAGE)
.saturating_add(T::DbWeight::get().writes(1)),
mem_grow: cost_batched(W::<T>::mem_grow),
mem_grow_per_page: cost_batched(W::<T>::mem_grow_per_page),
// TODO: make it non-zero for para-chains (issue #2225)
parachain_read_heuristic: Weight::zero(),
_phantom: PhantomData,
}
}
}
impl<T: Config> From<MemoryWeights<T>> for LazyPagesCosts {
fn from(val: MemoryWeights<T>) -> Self {
Self {
signal_read: val.lazy_pages_signal_read.ref_time().into(),
signal_write: val
.lazy_pages_signal_write
.saturating_add(val.upload_page_data)
.ref_time()
.into(),
signal_write_after_read: val
.lazy_pages_signal_write_after_read
.saturating_add(val.upload_page_data)
.ref_time()
.into(),
host_func_read: val.lazy_pages_host_func_read.ref_time().into(),
host_func_write: val
.lazy_pages_host_func_write
.saturating_add(val.upload_page_data)
.ref_time()
.into(),
host_func_write_after_read: val
.lazy_pages_host_func_write_after_read
.saturating_add(val.upload_page_data)
.ref_time()
.into(),
load_page_storage_data: val
.load_page_data
.saturating_add(val.parachain_read_heuristic)
.ref_time()
.into(),
}
}
}
impl<T: Config> Default for RentWeights<T> {
fn default() -> Self {
Self {
waitlist: Weight::from_parts(CostsPerBlockOf::<T>::waitlist(), 0),
dispatch_stash: Weight::from_parts(CostsPerBlockOf::<T>::dispatch_stash(), 0),
reservation: Weight::from_parts(CostsPerBlockOf::<T>::reservation(), 0),
mailbox: Weight::from_parts(CostsPerBlockOf::<T>::mailbox(), 0),
mailbox_threshold: Weight::from_parts(T::MailboxThreshold::get(), 0),
_phantom: PhantomData,
}
}
}
impl<T: Config> From<RentWeights<T>> for RentCosts {
fn from(val: RentWeights<T>) -> Self {
Self {
waitlist: val.waitlist.ref_time().into(),
dispatch_stash: val.dispatch_stash.ref_time().into(),
reservation: val.reservation.ref_time().into(),
}
}
}
impl<T: Config> Default for DbWeights<T> {
fn default() -> Self {
type W<T> = <T as Config>::WeightInfo;
Self {
write: DbWeightOf::<T>::get().writes(1),
read: DbWeightOf::<T>::get().reads(1),
write_per_byte: cost_byte(W::<T>::db_write_per_kb),
read_per_byte: cost_byte(W::<T>::db_read_per_kb),
_phantom: PhantomData,
}
}
}
impl<T: Config> Default for InstantiationWeights<T> {
fn default() -> Self {
type W<T> = <T as Config>::WeightInfo;
Self {
code_section_per_byte: cost_byte(W::<T>::instantiate_module_code_section_per_kb),
data_section_per_byte: cost_byte(W::<T>::instantiate_module_data_section_per_kb),
global_section_per_byte: cost_byte(W::<T>::instantiate_module_global_section_per_kb),
table_section_per_byte: cost_byte(W::<T>::instantiate_module_table_section_per_kb),
element_section_per_byte: cost_byte(W::<T>::instantiate_module_element_section_per_kb),
type_section_per_byte: cost_byte(W::<T>::instantiate_module_type_section_per_kb),
_phantom: PhantomData,
}
}
}
impl<T: Config> From<InstantiationWeights<T>> for InstantiationCosts {
fn from(val: InstantiationWeights<T>) -> Self {
Self {
code_section_per_byte: val.code_section_per_byte.ref_time().into(),
data_section_per_byte: val.data_section_per_byte.ref_time().into(),
global_section_per_byte: val.global_section_per_byte.ref_time().into(),
table_section_per_byte: val.table_section_per_byte.ref_time().into(),
element_section_per_byte: val.element_section_per_byte.ref_time().into(),
type_section_per_byte: val.type_section_per_byte.ref_time().into(),
}
}
}
struct ScheduleRules<'a, T: Config> {
schedule: &'a Schedule<T>,
params: Vec<u32>,
}
impl<'a, T: Config> Rules for ScheduleRules<'a, T> {
fn instruction_cost(&self, instruction: &Instruction) -> Option<u32> {
use Instruction::*;
use SignExtInstruction::*;
let w = &self.schedule.instruction_weights;
let max_params = self.schedule.limits.parameters;
let weight = match *instruction {
End | Unreachable | Return | Else | Block(_) | Loop(_) | Nop | Drop => 0,
I32Const(_) | I64Const(_) => w.i64const,
I32Load(_, _)
| I32Load8S(_, _)
| I32Load8U(_, _)
| I32Load16S(_, _)
| I32Load16U(_, _) => w.i32load,
I64Load(_, _)
| I64Load8S(_, _)
| I64Load8U(_, _)
| I64Load16S(_, _)
| I64Load16U(_, _)
| I64Load32S(_, _)
| I64Load32U(_, _) => w.i64load,
I32Store(_, _) | I32Store8(_, _) | I32Store16(_, _) => w.i32store,
I64Store(_, _) | I64Store8(_, _) | I64Store16(_, _) | I64Store32(_, _) => w.i64store,
Select => w.select,
If(_) => w.r#if,
Br(_) => w.br,
BrIf(_) => w.br_if,
Call(_) => w.call,
GetLocal(_) => w.local_get,
SetLocal(_) => w.local_set,
TeeLocal(_) => w.local_tee,
GetGlobal(_) => w.global_get,
SetGlobal(_) => w.global_set,
CurrentMemory(_) => w.memory_current,
CallIndirect(idx, _) => *self.params.get(idx as usize).unwrap_or(&max_params),
BrTable(ref data) => w
.br_table
.saturating_add(w.br_table_per_entry.saturating_mul(data.table.len() as u32)),
I32Clz => w.i32clz,
I64Clz => w.i64clz,
I32Ctz => w.i32ctz,
I64Ctz => w.i64ctz,
I32Popcnt => w.i32popcnt,
I64Popcnt => w.i64popcnt,
I32Eqz => w.i32eqz,
I64Eqz => w.i64eqz,
I64ExtendSI32 => w.i64extendsi32,
I64ExtendUI32 => w.i64extendui32,
I32WrapI64 => w.i32wrapi64,
I32Eq => w.i32eq,
I64Eq => w.i64eq,
I32Ne => w.i32ne,
I64Ne => w.i64ne,
I32LtS => w.i32lts,
I64LtS => w.i64lts,
I32LtU => w.i32ltu,
I64LtU => w.i64ltu,
I32GtS => w.i32gts,
I64GtS => w.i64gts,
I32GtU => w.i32gtu,
I64GtU => w.i64gtu,
I32LeS => w.i32les,
I64LeS => w.i64les,
I32LeU => w.i32leu,
I64LeU => w.i64leu,
I32GeS => w.i32ges,
I64GeS => w.i64ges,
I32GeU => w.i32geu,
I64GeU => w.i64geu,
I32Add => w.i32add,
I64Add => w.i64add,
I32Sub => w.i32sub,
I64Sub => w.i64sub,
I32Mul => w.i32mul,
I64Mul => w.i64mul,
I32DivS => w.i32divs,
I64DivS => w.i64divs,
I32DivU => w.i32divu,
I64DivU => w.i64divu,
I32RemS => w.i32rems,
I64RemS => w.i64rems,
I32RemU => w.i32remu,
I64RemU => w.i64remu,
I32And => w.i32and,
I64And => w.i64and,
I32Or => w.i32or,
I64Or => w.i64or,
I32Xor => w.i32xor,
I64Xor => w.i64xor,
I32Shl => w.i32shl,
I64Shl => w.i64shl,
I32ShrS => w.i32shrs,
I64ShrS => w.i64shrs,
I32ShrU => w.i32shru,
I64ShrU => w.i64shru,
I32Rotl => w.i32rotl,
I64Rotl => w.i64rotl,
I32Rotr => w.i32rotr,
I64Rotr => w.i64rotr,
SignExt(ref s) => match s {
I32Extend8S => w.i32extend8s,
I32Extend16S => w.i32extend16s,
I64Extend8S => w.i64extend8s,
I64Extend16S => w.i64extend16s,
I64Extend32S => w.i64extend32s,
},
// Returning None makes the gas instrumentation fail which we intend for
// unsupported or unknown instructions.
_ => return None,
};
Some(weight)
}
fn memory_grow_cost(&self) -> MemoryGrowCost {
MemoryGrowCost::Free
}
fn call_per_local_cost(&self) -> u32 {
self.schedule.instruction_weights.call_per_local
}
}
impl<T: Config> Schedule<T> {
pub fn rules(&self, module: &Module) -> impl Rules + '_ {
ScheduleRules {
schedule: self,
params: module
.type_section()
.iter()
.flat_map(|section| section.types())
.map(|func| {
let Type::Function(func) = func;
func.params().len() as u32
})
.collect(),
}
}
pub fn process_costs(&self) -> ProcessCosts {
ProcessCosts {
ext: ExtCosts {
syscalls: self.syscall_weights.clone().into(),
rent: self.rent_weights.clone().into(),
mem_grow: self.memory_weights.mem_grow.ref_time().into(),
mem_grow_per_page: self.memory_weights.mem_grow_per_page.ref_time().into(),
},
lazy_pages: self.memory_weights.clone().into(),
read: self.db_weights.read.ref_time().into(),
read_per_byte: self.db_weights.read_per_byte.ref_time().into(),
write: self.db_weights.write.ref_time().into(),
instrumentation: self.code_instrumentation_cost.ref_time().into(),
instrumentation_per_byte: self.code_instrumentation_byte_cost.ref_time().into(),
instantiation_costs: self.instantiation_weights.clone().into(),
load_allocations_per_interval: self.load_allocations_weight.ref_time().into(),
}
}
}
#[cfg(test)]
mod test {
use super::*;
/// This function creates a program with full of empty
/// functions, and returns the size of the wasm code.
fn module_with_full_idx(count: usize) -> usize {
let funcs = "(func)".repeat(count);
let wat = format!("(module {funcs})");
wabt::wat2wasm(wat).expect("Failed to serialize wasm").len()
}
#[test]
fn deserialize_max_fn_idx_with_code_limit() {
use gear_wasm_instrument::parity_wasm::elements::{IndexMap, Serialize, VarUint32};
use std::io;
// Calculates the max limit of the function indexes
// with our code length limit.
let code_limit = Limits::default().code_len as usize;
let empty_program_len = module_with_full_idx(1);
let empty_fn_len = module_with_full_idx(2) - empty_program_len;
// NOTE:
//
// For triggering the bug, assigning `u32::MAX` to `max_idx`.
let max_idx = ((code_limit - empty_program_len) / empty_fn_len + 1) as u32;
// NOTE:
//
// We are not generating the wasm module in memory because it
// takes too much.
//
// Mock the max idx in the index map of parity-wasm, cherry-pick
// https://github.com/casper-network/casper-wasm/pull/1 to our
// parity-wasm fork when this test getting failed which could be
// happened on **raising the code len limit of our programs**.
//
// For the current testing machine, Apple M1 chip, 16GB memory,
// deserializing a program with full of indexes in code size 4GB
// will lead to the problem.
let mut buffer = vec![];
VarUint32::from(1u32).serialize(&mut buffer).unwrap();
VarUint32::from(max_idx - 1).serialize(&mut buffer).unwrap();
"foobar".to_string().serialize(&mut buffer).unwrap();
let indexmap =
IndexMap::<String>::deserialize(max_idx as usize, &mut io::Cursor::new(buffer))
.unwrap();
assert_eq!(indexmap.get(max_idx - 1), Some(&"foobar".to_string()));
assert_eq!(indexmap.len(), 1);
}
}