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Optimize decryptObjectInfo (#10726)

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`decryptObjectInfo` is a significant bottleneck when listing objects.

Reduce the allocations for a significant speedup.

https://github.com/minio/sio/pull/40

```
λ benchcmp before.txt after.txt
benchmark                          old ns/op     new ns/op     delta
Benchmark_decryptObjectInfo-32     24260928      808656        -96.67%

benchmark                          old MB/s     new MB/s     speedup
Benchmark_decryptObjectInfo-32     0.04         1.24         31.00x

benchmark                          old allocs     new allocs     delta
Benchmark_decryptObjectInfo-32     75112          48996          -34.77%

benchmark                          old bytes     new bytes     delta
Benchmark_decryptObjectInfo-32     287694772     4228076       -98.53%
```
This commit is contained in:
Klaus Post
2020-10-29 09:34:20 -07:00
committed by GitHub
parent 4bf90ca67f
commit 6b14c4ab1e
10 changed files with 195 additions and 35 deletions
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go.mod
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@@ -52,7 +52,7 @@ require (
github.com/minio/selfupdate v0.3.1
github.com/minio/sha256-simd v0.1.1
github.com/minio/simdjson-go v0.1.5
github.com/minio/sio v0.2.0
github.com/minio/sio v0.2.1
github.com/mitchellh/go-homedir v1.1.0
github.com/mmcloughlin/avo v0.0.0-20200803215136-443f81d77104 // indirect
github.com/montanaflynn/stats v0.5.0