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8d2996eaaa
In Go 1.17.1, maphash has become quite a bit faster than siphash, so we can drop one third-party dependency. maphash is just an interface to the standard Go map's hash function, which we already trust for other use cases. Benchmark results on linux/amd64, -benchtime=3s: name old time/op new time/op delta IndexHasUnknown-8 50.6ns ±10% 41.0ns ±19% -18.92% (p=0.000 n=9+10) IndexHasKnown-8 52.6ns ±12% 41.5ns ±12% -21.13% (p=0.000 n=9+10) IndexMapHash-8 3.64µs ± 1% 2.00µs ± 0% -45.09% (p=0.000 n=10+9) IndexAlloc-8 700ms ± 1% 601ms ± 6% -14.18% (p=0.000 n=8+10) IndexAllocParallel-8 205ms ± 5% 192ms ± 8% -6.18% (p=0.043 n=10+10) MasterIndexAlloc-8 319ms ± 1% 279ms ± 5% -12.58% (p=0.000 n=10+10) MasterIndexLookupSingleIndex-8 156ns ± 8% 147ns ± 6% -5.46% (p=0.023 n=10+10) MasterIndexLookupMultipleIndex-8 150ns ± 7% 142ns ± 8% -5.69% (p=0.007 n=10+10) MasterIndexLookupSingleIndexUnknown-8 74.4ns ± 6% 72.0ns ± 9% ~ (p=0.175 n=10+9) MasterIndexLookupMultipleIndexUnknown-8 67.4ns ± 9% 65.5ns ± 7% ~ (p=0.340 n=9+9) MasterIndexLookupParallel/known,indices=25-8 461ns ± 2% 445ns ± 2% -3.49% (p=0.000 n=10+10) MasterIndexLookupParallel/unknown,indices=25-8 408ns ±11% 378ns ± 5% -7.22% (p=0.035 n=10+9) MasterIndexLookupParallel/known,indices=50-8 479ns ± 1% 437ns ± 4% -8.82% (p=0.000 n=10+10) MasterIndexLookupParallel/unknown,indices=50-8 406ns ± 8% 343ns ±15% -15.44% (p=0.001 n=10+10) MasterIndexLookupParallel/known,indices=100-8 480ns ± 1% 455ns ± 5% -5.15% (p=0.000 n=8+10) MasterIndexLookupParallel/unknown,indices=100-8 391ns ±18% 382ns ± 8% ~ (p=0.315 n=10+10) MasterIndexLookupBlobSize-8 71.0ns ± 8% 57.2ns ±11% -19.36% (p=0.000 n=9+10) PackerManager-8 254ms ± 1% 254ms ± 1% ~ (p=0.285 n=15+15) name old speed new speed delta IndexMapHash-8 1.12GB/s ± 1% 2.05GB/s ± 0% +82.13% (p=0.000 n=10+9) PackerManager-8 208MB/s ± 1% 207MB/s ± 1% ~ (p=0.281 n=15+15) name old alloc/op new alloc/op delta IndexMapHash-8 0.00B 0.00B ~ (all equal) IndexAlloc-8 400MB ± 0% 400MB ± 0% ~ (p=1.000 n=9+10) IndexAllocParallel-8 401MB ± 0% 401MB ± 0% +0.00% (p=0.000 n=10+10) MasterIndexAlloc-8 258MB ± 0% 262MB ± 0% +1.42% (p=0.000 n=9+10) PackerManager-8 73.1kB ± 0% 73.1kB ± 0% ~ (p=0.382 n=13+13) name old allocs/op new allocs/op delta IndexMapHash-8 0.00 0.00 ~ (all equal) IndexAlloc-8 907k ± 0% 907k ± 0% -0.00% (p=0.000 n=10+10) IndexAllocParallel-8 907k ± 0% 907k ± 0% +0.00% (p=0.009 n=10+10) MasterIndexAlloc-8 327k ± 0% 317k ± 0% -3.06% (p=0.000 n=10+10) PackerManager-8 744 ± 0% 744 ± 0% ~ (all equal) |
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.. | ||
testdata | ||
doc.go | ||
index.go | ||
index_parallel.go | ||
index_parallel_test.go | ||
index_test.go | ||
indexmap.go | ||
indexmap_test.go | ||
key.go | ||
master_index.go | ||
master_index_test.go | ||
packer_manager.go | ||
packer_manager_test.go | ||
repack.go | ||
repack_test.go | ||
repository.go | ||
repository_internal_test.go | ||
repository_test.go | ||
testing.go | ||
worker_group.go |