perf(table): format object-store hashes with a fixed buffer - #1814
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fallintoplace wants to merge 1 commit into
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perf(table): format object-store hashes with a fixed buffer#1814fallintoplace wants to merge 1 commit into
fallintoplace wants to merge 1 commit into
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fallintoplace
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Why
Object-store paths currently format the 20-bit Murmur3 hash by converting it to a binary string, slicing it into directories, and joining the pieces. This creates temporary allocations for every data file path.
What changed
computeHashbenchmark.Benchmark
Apple M1 Pro, Go 1.26.3, GOMAXPROCS=1. Median of five 1-second runs:
The new version is about 2.2x faster.
Tests
go test ./...go test -race ./table/...