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XL/bitrot: Migrate to new blake2b-simd SIMD optimized implementation. (#2031)

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Thanks for Frank Wessels <fwessels@xs4all.nl> for all the heavy lifting work.

Comparative benchmarks are as below.
```
benchmark                old ns/op     new ns/op     delta
BenchmarkHash64-4        742           411           -44.61%
BenchmarkHash128-4       681           346           -49.19%
BenchmarkWrite1K-4       4239          1497          -64.69%
BenchmarkWrite8K-4       33633         11514         -65.77%
BenchmarkWrite32K-4      134091        45947         -65.73%
BenchmarkWrite128K-4     537976        183643        -65.86%

benchmark                old MB/s     new MB/s     speedup
BenchmarkHash64-4        86.18        155.51       1.80x
BenchmarkHash128-4       187.96       369.10       1.96x
BenchmarkWrite1K-4       241.55       683.87       2.83x
BenchmarkWrite8K-4       3897.06      11383.41     2.92x
BenchmarkWrite32K-4      977.48       2852.63      2.92x
BenchmarkWrite128K-4     243.64       713.73       2.93x
```

Fixes #2030
This commit is contained in:
Harshavardhana
2016-06-29 02:06:35 -07:00
committed by Anand Babu (AB) Periasamy
parent 796fe165c7
commit d484157d67
13 changed files with 1164 additions and 40 deletions
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2
erasure-utils.go
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@@ -22,8 +22,8 @@ import (
"hash"
"io"
"github.com/dchest/blake2b"
"github.com/klauspost/reedsolomon"
"github.com/minio/blake2b-simd"
)
// newHashWriters - inititialize a slice of hashes for the disk count.