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Block change to 1M from 128KiB and extensively use buffer pools.

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Following are the benefits of this change.
```
benchmark                           old allocs     new allocs     delta
BenchmarkPutObjectPart5MbFS-4       46172          16383          -64.52%
BenchmarkPutObjectPart10MbFS-4      36849          7223           -80.40%
BenchmarkPutObjectPart25MbFS-4      31699          3865           -87.81%
BenchmarkPutObjectPart50MbFS-4      27577          2481           -91.00%
BenchmarkPutObjectVerySmallFS-4     57             56             -1.75%
BenchmarkPutObject10KbFS-4          57             56             -1.75%
BenchmarkPutObject100KbFS-4         57             56             -1.75%
BenchmarkPutObject1MbFS-4           176            56             -68.18%
BenchmarkPutObject5MbFS-4           720            90             -87.50%
BenchmarkPutObject10MbFS-4          1400           124            -91.14%
BenchmarkPutObject25MbFS-4          3440           261            -92.41%
BenchmarkPutObject50MbFS-4          6841           466            -93.19%
```
This commit is contained in:
Harshavardhana
2016-10-12 17:42:11 -07:00
parent 614a8cf7ad
commit 774e9c8e3a
9 changed files with 137 additions and 32 deletions
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cmd/object-common.go
+1 -1
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@@ -27,7 +27,7 @@ const (
blockSizeV1 = 10 * 1024 * 1024 // 10MiB.
// Staging buffer read size for all internal operations version 1.
readSizeV1 = 128 * 1024 // 128KiB.
readSizeV1 = 2 * 1024 * 1024 // 2MiB.
// Buckets meta prefix.
bucketMetaPrefix = "buckets"