mirror of
https://github.com/pezkuwichain/wasm-instrument.git
synced 2026-04-22 03:18:02 +00:00
Sasha Gryaznov
a4dde28607
* fix misprints in doc comments * added global gas tracker variable and local gas fn * all exported functions of the module to accept a new param and to set the gas_left global to its value at their very start * make module support both gas metering methods * tests fixed for the old metering method * better naming * MutableGlobal metering method implemented, tests for the old method pass * gas_metering::tests updated and pass * all tests udpdated and pass * emacs backup files to .gitignore * docs updated * clippy fix * iff = if and only if * more clippy * docs misprints fixes * refactored to have Backend trait and two implementations in separate sub-modules * docs updated * fixed old benches (updating them is coming next) * added bench for an instrumented wasm-coremark * updated benches: added them for both gas_metering instrumentations * benches contest first ver * added debug prints to the bench * refactored to better fit frontend-backend pattern * docs update * updated benches * design updated on feedback * re-structured sub-modules re-structured sub-modules & updated docs * docs improved * addressed latest feedback comments * re-writed the local gas function * coremark benches show ~20% performance improvement * fix ci: test + clippy * save before re-factoring prepare_in_wasm() * bare_call_16 shows 16% worse perf * + fibonacci recursive bench * refactored benchmarks * + factorial recursive bench * benches on wasmi fixtures show no perf improvement, coremark runs ~20% faster being instrumented with mutable_global gas metering * charge gas for local gas func isntructions execution * replaced benchmark which requires multi_value feature * save: optimized gas func a bit (benches work, fixture tests fail) * 1033% overhead on many_blocks.wasm when mut_global gas_metering together with stack_height * size overhead test for both gas metering methods + stack limiter * added more benches * improved print_size_overhead test * test for comparing size overheads of two gas_metering injectors * before optimization: benches + size overhead * optimization try-1: inline part of gas func instructions: +benches +size overheads * optimization try-2: inline hot path of gas fn: +benches +size overheads * opt try-3: count for gas fn cost on the caller side: +benches +size overhead * revert to initial version but with static gas fn cost on the caller side: +benches +sizes * tests fixed * use newest wasmi 0.20: +benches +docs updated * use if-else block instead of Return: +benches * fix tests * clippy fix * addressed review comments * Update changelog Co-authored-by: Alexander Theißen <alex.theissen@me.com>
20 lines
499 B
WebAssembly Text Format
20 lines
499 B
WebAssembly Text Format
(module
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(type (;0;) (func (param i32 i32)))
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(type (;1;) (func))
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(type (;2;) (func (param i64)))
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(import "env" "ext_return" (func $ext_return (;0;) (type 0)))
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(import "env" "memory" (memory (;0;) 1 1))
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(import "env" "gas" (func (;1;) (type 2)))
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(func $start (;2;) (type 1)
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i64.const 4
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call 1
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i32.const 8
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i32.const 4
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call $ext_return
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unreachable
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)
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(func (;3;) (type 1))
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(export "call" (func 3))
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(start $start)
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(data (;0;) (i32.const 8) "\01\02\03\04")
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) |