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Compress better on amd64 (#12974)

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Since S2 has amd64 assembly, it now operates at a reasonable 
speed to use by default.

Here are some examples of stream compression speed, 16 cores:
```
nyc-taxi-data-10M.csv	s2	1	3325605752	-> 1095998837	312ms	10139.07MB/s		67.04% reduction
nyc-taxi-data-10M.csv	s2	2	3325605752	-> 917905514	428ms	7393.74MB/s		72.40%

github-june-2days-2019.json	s2	1	6273951764	-> 1043196283	391ms	15301.99 MB/s		83.37%
github-june-2days-2019.json	s2	2	6273951764	-> 955924506	519ms	11510.81MB/s		84.76%

github-ranks-backup.bin	s2	1	1862623243	-> 623911363	146ms	12133MB/s		66.50%
github-ranks-backup.bin	s2	2	1862623243	-> 563752759	230ms	7705.26MB/s		69.73%
```

We keep non-assembly platforms on the faster, but less efficient mode.
This commit is contained in:
Klaus Post 2021-08-16 20:55:07 +02:00 committed by GitHub
parent 47dfc1b1b0
commit 92bb2928e4
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 14 additions and 4 deletions
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12
cmd/object-api-utils.go
View File

@ -884,6 +884,16 @@ func CleanMinioInternalMetadataKeys(metadata map[string]string) map[string]strin
return newMeta
}
// compressOpts are the options for writing compressed data.
var compressOpts []s2.WriterOption
func init() {
if runtime.GOARCH == "amd64" {
// On amd64 we have assembly and can use stronger compression.
compressOpts = append(compressOpts, s2.WriterBetterCompression())
}
}
// newS2CompressReader will read data from r, compress it and return the compressed data as a Reader.
// Use Close to ensure resources are released on incomplete streams.
//
@ -894,7 +904,7 @@ func newS2CompressReader(r io.Reader, on int64) io.ReadCloser {
pr, pw := io.Pipe()
// Copy input to compressor
go func() {
comp := s2.NewWriter(pw)
comp := s2.NewWriter(pw, compressOpts...)
cn, err := io.Copy(comp, r)
if err != nil {
comp.Close()

2
go.mod
View File

@ -32,7 +32,7 @@ require (
github.com/gorilla/mux v1.8.0
github.com/jcmturner/gokrb5/v8 v8.4.2
github.com/json-iterator/go v1.1.11
github.com/klauspost/compress v1.13.3
github.com/klauspost/compress v1.13.4
github.com/klauspost/cpuid/v2 v2.0.4
github.com/klauspost/pgzip v1.2.5
github.com/klauspost/readahead v1.3.1

4
go.sum
View File

@ -881,8 +881,8 @@ github.com/klauspost/compress v1.11.0/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYs
github.com/klauspost/compress v1.11.7/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/compress v1.11.12/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/compress v1.12.2/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.3 h1:BtAvtV1+h0YwSVwWoYXMREPpYu9VzTJ9QDI1TEg/iQQ=
github.com/klauspost/compress v1.13.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/compress v1.13.4 h1:0zhec2I8zGnjWcKyLl6i3gPqKANCCn5e9xmviEEeX6s=
github.com/klauspost/compress v1.13.4/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
github.com/klauspost/cpuid v0.0.0-20180405133222-e7e905edc00e/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=