Struct gear_core::gas_metering::InstructionWeights

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pub struct InstructionWeights {
Show 88 fields
    pub version: u32,
    pub i64const: u32,
    pub i64load: u32,
    pub i32load: u32,
    pub i64store: u32,
    pub i32store: u32,
    pub select: u32,
    pub 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,

}
Expand description

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.

Fields§

§version: u32

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.

§i64const: u32§i64load: u32§i32load: u32§i64store: u32§i32store: u32§select: u32§if: u32§br: u32§br_if: u32§br_table: u32§br_table_per_entry: u32§call: u32§call_indirect: u32§call_indirect_per_param: u32§call_per_local: u32§local_get: u32§local_set: u32§local_tee: u32§global_get: u32§global_set: u32§memory_current: u32§i64clz: u32§i32clz: u32§i64ctz: u32§i32ctz: u32§i64popcnt: u32§i32popcnt: u32§i64eqz: u32§i32eqz: u32§i32extend8s: u32§i32extend16s: u32§i64extend8s: u32§i64extend16s: u32§i64extend32s: u32§i64extendsi32: u32§i64extendui32: u32§i32wrapi64: u32§i64eq: u32§i32eq: u32§i64ne: u32§i32ne: u32§i64lts: u32§i32lts: u32§i64ltu: u32§i32ltu: u32§i64gts: u32§i32gts: u32§i64gtu: u32§i32gtu: u32§i64les: u32§i32les: u32§i64leu: u32§i32leu: u32§i64ges: u32§i32ges: u32§i64geu: u32§i32geu: u32§i64add: u32§i32add: u32§i64sub: u32§i32sub: u32§i64mul: u32§i32mul: u32§i64divs: u32§i32divs: u32§i64divu: u32§i32divu: u32§i64rems: u32§i32rems: u32§i64remu: u32§i32remu: u32§i64and: u32§i32and: u32§i64or: u32§i32or: u32§i64xor: u32§i32xor: u32§i64shl: u32§i32shl: u32§i64shrs: u32§i32shrs: u32§i64shru: u32§i32shru: u32§i64rotl: u32§i32rotl: u32§i64rotr: u32§i32rotr: u32

Trait Implementations§

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impl Clone for InstructionWeights

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fn clone(&self) -> InstructionWeights

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for InstructionWeights

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for InstructionWeights

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fn default() -> Self

Returns the “default value” for a type. Read more

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