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Commit Graph

12 Commits

Author SHA1 Message Date
Florian Weingarten
8ba47df8d1 golint 2015-04-28 10:23:13 -04:00
Alexander Neumann
21dc6dd3db Rename crypto functions and constants 2015-04-12 09:41:47 +02:00
Alexander Neumann
3a2525809c Reorganize crypto code
Move all crypto functions to package "crypto", move random generators
for tests into helper package.
2015-04-12 09:36:14 +02:00
Alexander Neumann
b2307cafa2 Seed chunker with random per-repository polynomial 2015-04-06 00:22:19 +02:00
Alexander Neumann
24b14e21cc Remove pools for nodes and IDs
This removes the allocation pools for nodes and IDs. I feel they aren't
really needed. Benchmarks:

    benchmark                         old ns/op      new ns/op      delta
    BenchmarkChunkEncrypt             197890867      198616293      +0.37%
    BenchmarkChunkEncryptParallel     196127004      198819818      +1.37%
    BenchmarkArchiveDirectory         1098848419     1087237723     -1.06%
    BenchmarkPreload                  30464455       29910239       -1.82%
    BenchmarkLoadTree                 3265092        3088543        -5.41%
    BenchmarkEncryptWriter            37213511       37134683       -0.21%
    BenchmarkEncrypt                  36037879       36166546       +0.36%
    BenchmarkDecryptReader            38165659       38556734       +1.02%
    BenchmarkEncryptDecryptReader     77027044       77194987       +0.22%
    BenchmarkDecrypt                  36017602       35937888       -0.22%
    BenchmarkSaveJSON                 47906          50270          +4.93%
    BenchmarkSaveFrom                 49775973       50520969       +1.50%
    BenchmarkLoadJSONID               105290245      107281849      +1.89%
    BenchmarkChunkerWithSHA256        151501430      148264078      -2.14%
    BenchmarkChunkerWithMD5           93606346       94036392       +0.46%
    BenchmarkChunker                  74285431       75933882       +2.22%
    BenchmarkPipelineWalker           387689         346467         -10.63%

    benchmark                         old MB/s     new MB/s     speedup
    BenchmarkChunkEncrypt             52.99        52.79        1.00x
    BenchmarkChunkEncryptParallel     53.46        52.74        0.99x
    BenchmarkEncryptWriter            225.42       225.90       1.00x
    BenchmarkEncrypt                  232.77       231.94       1.00x
    BenchmarkDecryptReader            219.79       217.57       0.99x
    BenchmarkEncryptDecryptReader     108.90       108.67       1.00x
    BenchmarkDecrypt                  232.90       233.42       1.00x
    BenchmarkSaveFrom                 84.26        83.02        0.99x
    BenchmarkChunkerWithSHA256        69.21        70.72        1.02x
    BenchmarkChunkerWithMD5           112.02       111.51       1.00x
    BenchmarkChunker                  141.15       138.09       0.98x

    benchmark                         old allocs     new allocs     delta
    BenchmarkChunkEncrypt             110            110            +0.00%
    BenchmarkChunkEncryptParallel     100            100            +0.00%
    BenchmarkArchiveDirectory         475591         476635         +0.22%
    BenchmarkPreload                  28059          24182          -13.82%
    BenchmarkLoadTree                 3124           2889           -7.52%
    BenchmarkEncryptWriter            19             19             +0.00%
    BenchmarkEncrypt                  13             13             +0.00%
    BenchmarkDecryptReader            16             15             -6.25%
    BenchmarkEncryptDecryptReader     39             39             +0.00%
    BenchmarkDecrypt                  11             11             +0.00%
    BenchmarkSaveJSON                 74             74             +0.00%
    BenchmarkSaveFrom                 109            112            +2.75%
    BenchmarkLoadJSONID               103630         97849          -5.58%
    BenchmarkChunkerWithSHA256        13             13             +0.00%
    BenchmarkChunkerWithMD5           12             12             +0.00%
    BenchmarkChunker                  6              6              +0.00%
    BenchmarkPipelineWalker           212            165            -22.17%

    benchmark                         old bytes     new bytes     delta
    BenchmarkChunkEncrypt             64697         64697         +0.00%
    BenchmarkChunkEncryptParallel     64681         64681         +0.00%
    BenchmarkArchiveDirectory         193385504     193790864     +0.21%
    BenchmarkPreload                  4064701       3942000       -3.02%
    BenchmarkLoadTree                 344954        325396        -5.67%
    BenchmarkEncryptWriter            12793         12793         +0.00%
    BenchmarkEncrypt                  1950          1950          +0.00%
    BenchmarkDecryptReader            3120          2774          -11.09%
    BenchmarkEncryptDecryptReader     1528036       1528036       +0.00%
    BenchmarkDecrypt                  1919          1919          +0.00%
    BenchmarkSaveJSON                 5524          5524          +0.00%
    BenchmarkSaveFrom                 31353         40804         +30.14%
    BenchmarkLoadJSONID               12872020      16010968      +24.39%
    BenchmarkChunkerWithSHA256        26821         26821         +0.00%
    BenchmarkChunkerWithMD5           13554         13554         +0.00%
    BenchmarkChunker                  13458         13458         +0.00%
    BenchmarkPipelineWalker           58584         55560         -5.16%
2015-03-28 16:51:37 +01:00
Alexander Neumann
662e07d17a Refactor crypto layer, switch HMAC for Poyl1305-AES
HMAC-SHA256 calls SHA256() twice which is very expensive. Therefore,
this commit uses Poly1305-AES instead of HMAC-SHA256.

benchcmp:

     benchmark                         old ns/op      new ns/op      delta
     BenchmarkChunkEncrypt             261033772      195114818      -25.25%
     BenchmarkChunkEncryptParallel     260973195      195787368      -24.98%
     BenchmarkArchiveDirectory         1050500651     1002615884     -4.56%
     BenchmarkPreload                  23544286       24994508       +6.16%
     BenchmarkLoadTree                 350065         427665         +22.17%
     BenchmarkEncryptWriter            87789753       31069126       -64.61%
     BenchmarkEncrypt                  88283197       38259043       -56.66%
     BenchmarkDecryptReader            90478843       40714818       -55.00%
     BenchmarkEncryptDecryptReader     179917626      81231730       -54.85%
     BenchmarkDecrypt                  87871591       37784207       -57.00%
     BenchmarkSaveJSON                 52481          56861          +8.35%
     BenchmarkSaveFrom                 75404085       51108596       -32.22%
     BenchmarkLoadJSONID               90545437       82696805       -8.67%

     benchmark                         old MB/s     new MB/s     speedup
     BenchmarkChunkEncrypt             40.17        53.74        1.34x
     BenchmarkChunkEncryptParallel     40.18        53.56        1.33x
     BenchmarkEncryptWriter            95.55        270.00       2.83x
     BenchmarkEncrypt                  95.02        219.26       2.31x
     BenchmarkDecryptReader            92.71        206.03       2.22x
     BenchmarkEncryptDecryptReader     46.62        103.27       2.22x
     BenchmarkDecrypt                  95.46        222.01       2.33x
     BenchmarkSaveFrom                 55.62        82.07        1.48x

     benchmark                         old allocs     new allocs     delta
     BenchmarkChunkEncrypt             112            110            -1.79%
     BenchmarkChunkEncryptParallel     103            100            -2.91%
     BenchmarkArchiveDirectory         383704         392083         +2.18%
     BenchmarkPreload                  21765          21874          +0.50%
     BenchmarkLoadTree                 341            436            +27.86%
     BenchmarkEncryptWriter            20             17             -15.00%
     BenchmarkEncrypt                  14             13             -7.14%
     BenchmarkDecryptReader            18             15             -16.67%
     BenchmarkEncryptDecryptReader     46             39             -15.22%
     BenchmarkDecrypt                  16             12             -25.00%
     BenchmarkSaveJSON                 81             86             +6.17%
     BenchmarkSaveFrom                 117            121            +3.42%
     BenchmarkLoadJSONID               80525          80264          -0.32%

     benchmark                         old bytes     new bytes     delta
     BenchmarkChunkEncrypt             118956        64697         -45.61%
     BenchmarkChunkEncryptParallel     118972        64681         -45.63%
     BenchmarkArchiveDirectory         160236600     177498232     +10.77%
     BenchmarkPreload                  2772488       3302992       +19.13%
     BenchmarkLoadTree                 49102         46484         -5.33%
     BenchmarkEncryptWriter            28927         8388146       +28897.64%
     BenchmarkEncrypt                  2473          1950          -21.15%
     BenchmarkDecryptReader            527827        2774          -99.47%
     BenchmarkEncryptDecryptReader     4100875       1528036       -62.74%
     BenchmarkDecrypt                  2509          2154          -14.15%
     BenchmarkSaveJSON                 4971          5892          +18.53%
     BenchmarkSaveFrom                 40117         31742         -20.88%
     BenchmarkLoadJSONID               9444217       9442106       -0.02%

This closes #102.
2015-03-14 20:00:41 +01:00
Alexander Neumann
3bf66d24fa chunker: Add test, only pass hash.Hash to New() 2015-02-11 13:12:36 +01:00
Alexander Neumann
bbb3145f11 Add chunker pool 2015-02-09 23:38:50 +01:00
Alexander Neumann
c884704bce Refactor pool stats 2015-02-08 13:46:51 +01:00
Alexander Neumann
e2fea0d088 Rename khepri -> restic 2014-12-05 21:45:49 +01:00
Alexander Neumann
719e121c74 Use large, dynamic buffer for encrypting maps 2014-11-23 22:58:41 +01:00
Alexander Neumann
f95788ed90 Limit memory usage, add several sync.Pool 2014-11-23 21:26:20 +01:00