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precompiled: adjust the gas cost of consortium precompiled contract #376
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andicrypt
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Currently, every time the precompiled contract is called, the contract ABI is unmarshalled even though the ABI is unchanged. This commit moves the contract ABI unmarshal to init to save the computation. This commit also optimizes the SortableValidators.Less to reduce the memory allocation.
This commit adds the benchmarks and calculated gas cost from the benchmarks to validator sorting, pick validator set and verify double sign proof precompiled contracts. Ethereum aims for 30 mgas/s when setting gas cost for precompiled contracts, we aims for 60 mgas/s. Benchmark results: BenchmarkConsortiumValidatorSorting/validator-sort-Gas=2310-8 548737 20101 ns/op 2310 gas/op 114.9 mgas/s 11616 B/op 224 allocs/op BenchmarkConsortiumValidatorSorting/validator-sort-Gas=9780-8 205410 66083 ns/op 9780 gas/op 148.0 mgas/s 49280 B/op 852 allocs/op BenchmarkConsortiumVerifyHeaders/verify-headers-Gas=21000-8 48445 232612 ns/op 21000 gas/op 90.27 mgas/s 53043 B/op 477 allocs/op BenchmarkConsortiumPickValidatorSet/pick-validator-set-Gas=3540-8 377305 32748 ns/op 3540 gas/op 108.1 mgas/s 19775 B/op 299 allocs/op BenchmarkConsortiumPickValidatorSet/pick-validator-set-Gas=14790-8 113479 129076 ns/op 14790 gas/op 114.6 mgas/s 76689 B/op 1092 allocs/op
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This commit adds the benchmarks and calculated gas cost from the benchmarks to
validator sorting, pick validator set and verify double sign proof precompiled
contracts. Ethereum aims for 30 mgas/s when setting gas cost for precompiled
contracts, we aims for 60 mgas/s.
Benchmark results: