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crypto: Add buffer management to writer

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benchmarks:

    benchmark                         old ns/op     new ns/op     delta
    BenchmarkEncryptWriter            37032949      37754353      +1.95%
    BenchmarkEncrypt                  35989611      36344593      +0.99%
    BenchmarkDecryptReader            38274466      38282979      +0.02%
    BenchmarkEncryptDecryptReader     77506506      77088612      -0.54%
    BenchmarkDecrypt                  36219298      36128875      -0.25%

    benchmark                         old MB/s     new MB/s     speedup
    BenchmarkEncryptWriter            226.52       222.19       0.98x
    BenchmarkEncrypt                  233.08       230.81       0.99x
    BenchmarkDecryptReader            219.17       219.12       1.00x
    BenchmarkEncryptDecryptReader     108.23       108.82       1.01x
    BenchmarkDecrypt                  231.61       232.19       1.00x

    benchmark                         old allocs     new allocs     delta
    BenchmarkEncryptWriter            20             16             -20.00%
    BenchmarkEncrypt                  12             12             +0.00%
    BenchmarkDecryptReader            13             13             +0.00%
    BenchmarkEncryptDecryptReader     32             27             -15.62%
    BenchmarkDecrypt                  10             10             +0.00%

    benchmark                         old bytes     new bytes     delta
    BenchmarkEncryptWriter            1020064       170331        -83.30%
    BenchmarkEncrypt                  1600          1600          +0.00%
    BenchmarkDecryptReader            841070        842094        +0.12%
    BenchmarkEncryptDecryptReader     3027433       845129        -72.08%
    BenchmarkDecrypt                  1573          1573          +0.00%
This commit is contained in:
Alexander Neumann 2015-04-24 22:55:40 +02:00
parent 387082f983
commit 9c43688d1a
2 changed files with 44 additions and 70 deletions
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2
crypto/buffer_pool.go
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@ -2,7 +2,7 @@ package crypto
import "sync"
const defaultBufSize = 2048
const defaultBufSize = 32 * 1024 // 32KiB
var bufPool = sync.Pool{
New: func() interface{} {