perf: reuse hash buffer in witness storage leaf hash#18803
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yperbasis merged 1 commit intoJan 26, 2026
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antonis19
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* main: (37 commits) Make `lastCommittedTxNum` atomic (erigontech#18820) integrity: fix redundant variable name in checkLogIdx (erigontech#18646) Fixed index building for v0 snapshot format (erigontech#18825) execution/vm: fold EVMInterpreter into EVM (erigontech#18765) fix: return correct prune mode value instead of nil (erigontech#18804) fix BuildMissedAccessors for caplin state (erigontech#18802) execution: EIP-7708: ETH transfers emit a log (erigontech#18761) refactor(rpc): remove redundant boolean comparison in AccountRange (erigontech#18814) Show the default P2P discovery bools in --help (erigontech#18818) fix(txpool): remove redundant Worst() calls in queued pool discard loop (erigontech#18810) node: remove unused logger and test helper (erigontech#18744) Disabled compression in collate function (erigontech#18813) Add missing tx.Commit() in stage_snapshots (erigontech#18816) Bumped major version of snapshot files (erigontech#18815) qa-tests: summary for RPC integration tests (erigontech#18809) perf: reuse hash buffer in witness storage leaf hash (erigontech#18803) execution/stagedsync: remove canPrune from serial_exec (erigontech#18800) Fixed deduplication intervals for rebuild cmd (erigontech#18796) Fix race due to warmup cache (erigontech#18799) fix(txpool): use instance logger instead of global log (erigontech#18797) ...
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Previously witnessComputeCellHashWithStorage allocated a fresh []byte with make([]byte, 0, 33) for every singleton storage leaf when computing the leaf hash. This added a small but unnecessary allocation on a hot path during witness generation.
This change reuses the existing hph.hashAuxBuffer slice as the target buffer for leafHashWithKeyVal in the singleton storage branch. The hash encoding semantics stay the same, but we avoid per-call allocations in the witness storage leaf hashing path.