1. 07 Dec, 2009 7 commits
  2. 06 Dec, 2009 4 commits
  3. 05 Dec, 2009 10 commits
  4. 04 Dec, 2009 19 commits
    • Ian Lance Taylor's avatar
    • Adam Langley's avatar
      runtime: shift the index for the sort by one. · e79bcf8b
      Adam Langley authored
      Makes the code look cleaner, even if it's a little harder to figure
      out from the sort invariants.
      
      R=rsc
      CC=golang-dev
      https://golang.org/cl/165061
      e79bcf8b
    • Ian Lance Taylor's avatar
      Add os.Rename. · 0b5cc316
      Ian Lance Taylor authored
      R=rsc
      https://golang.org/cl/166058
      0b5cc316
    • Adam Langley's avatar
      Remove global chanlock. · d1740bb3
      Adam Langley authored
      On a microbenchmark that ping-pongs on lots of channels, this makes
      the multithreaded case about 20% faster and the uniprocessor case
      about 1% slower. (Due to cache effects, I expect.)
      
      R=rsc, agl
      CC=golang-dev
      https://golang.org/cl/166043
      d1740bb3
    • Russ Cox's avatar
      bytes: asm for bytes.IndexByte · d6b3f37e
      Russ Cox authored
      PERFORMANCE DIFFERENCE
      
      SUMMARY
      
                                                         amd64           386
      2.2 GHz AMD Opteron 8214 HE (Linux)             3.0x faster    8.2x faster
      3.60 GHz Intel Xeon (Linux)                     2.2x faster    6.2x faster
      2.53 GHz Intel Core2 Duo E7200 (Linux)          1.5x faster    4.4x faster
      2.66 Ghz Intel Xeon 5150 (Mac Pro, OS X)        1.5x SLOWER    3.0x faster
      2.33 GHz Intel Xeon E5435 (Linux)               1.5x SLOWER    3.0x faster
      2.33 GHz Intel Core2 T7600 (MacBook Pro, OS X)  1.4x SLOWER    3.0x faster
      1.83 GHz Intel Core2 T5600 (Mac Mini, OS X)        none*       3.0x faster
      
      * but yesterday I consistently saw 1.4x SLOWER.
      
      DETAILS
      
      2.2 GHz AMD Opteron 8214 HE (Linux)
      
      amd64 (3x faster)
      
      IndexByte4K            500000           3733 ns/op     1097.24 MB/s
      IndexByte4M               500        4328042 ns/op      969.10 MB/s
      IndexByte64M               50       67866160 ns/op      988.84 MB/s
      
      IndexBytePortable4K    200000          11161 ns/op      366.99 MB/s
      IndexBytePortable4M       100       11795880 ns/op      355.57 MB/s
      IndexBytePortable64M       10      188675000 ns/op      355.68 MB/s
      
      386 (8.2x faster)
      
      IndexByte4K            500000           3734 ns/op     1096.95 MB/s
      IndexByte4M               500        4209954 ns/op      996.28 MB/s
      IndexByte64M               50       68031980 ns/op      986.43 MB/s
      
      IndexBytePortable4K     50000          30670 ns/op      133.55 MB/s
      IndexBytePortable4M        50       31868220 ns/op      131.61 MB/s
      IndexBytePortable64M        2      508851500 ns/op      131.88 MB/s
      
      3.60 GHz Intel Xeon (Linux)
      
      amd64 (2.2x faster)
      
      IndexByte4K            500000           4612 ns/op      888.12 MB/s
      IndexByte4M               500        4835250 ns/op      867.44 MB/s
      IndexByte64M               20       77388450 ns/op      867.17 MB/s
      
      IndexBytePortable4K    200000          10306 ns/op      397.44 MB/s
      IndexBytePortable4M       100       11201460 ns/op      374.44 MB/s
      IndexBytePortable64M       10      179456800 ns/op      373.96 MB/s
      
      386 (6.3x faster)
      
      IndexByte4K            500000           4631 ns/op      884.47 MB/s
      IndexByte4M               500        4846388 ns/op      865.45 MB/s
      IndexByte64M               20       78691200 ns/op      852.81 MB/s
      
      IndexBytePortable4K    100000          28989 ns/op      141.29 MB/s
      IndexBytePortable4M        50       31183180 ns/op      134.51 MB/s
      IndexBytePortable64M        5      498347200 ns/op      134.66 MB/s
      
      2.53 GHz Intel Core2 Duo E7200  (Linux)
      
      amd64 (1.5x faster)
      
      IndexByte4K            500000           6502 ns/op      629.96 MB/s
      IndexByte4M               500        6692208 ns/op      626.74 MB/s
      IndexByte64M               10      107410400 ns/op      624.79 MB/s
      
      IndexBytePortable4K    200000           9721 ns/op      421.36 MB/s
      IndexBytePortable4M       100       10013680 ns/op      418.86 MB/s
      IndexBytePortable64M       10      160460800 ns/op      418.23 MB/s
      
      386 (4.4x faster)
      
      IndexByte4K            500000           6505 ns/op      629.67 MB/s
      IndexByte4M               500        6694078 ns/op      626.57 MB/s
      IndexByte64M               10      107397600 ns/op      624.86 MB/s
      
      IndexBytePortable4K    100000          28835 ns/op      142.05 MB/s
      IndexBytePortable4M        50       29562680 ns/op      141.88 MB/s
      IndexBytePortable64M        5      473221400 ns/op      141.81 MB/s
      
      2.66 Ghz Intel Xeon 5150  (Mac Pro, OS X)
      
      amd64 (1.5x SLOWER)
      
      IndexByte4K            200000           9290 ns/op      440.90 MB/s
      IndexByte4M               200        9568925 ns/op      438.33 MB/s
      IndexByte64M               10      154473600 ns/op      434.44 MB/s
      
      IndexBytePortable4K    500000           6202 ns/op      660.43 MB/s
      IndexBytePortable4M       500        6583614 ns/op      637.08 MB/s
      IndexBytePortable64M       20      107166250 ns/op      626.21 MB/s
      
      386 (3x faster)
      
      IndexByte4K            200000           9301 ns/op      440.38 MB/s
      IndexByte4M               200        9568025 ns/op      438.37 MB/s
      IndexByte64M               10      154391000 ns/op      434.67 MB/s
      
      IndexBytePortable4K    100000          27526 ns/op      148.80 MB/s
      IndexBytePortable4M       100       28302490 ns/op      148.20 MB/s
      IndexBytePortable64M        5      454170200 ns/op      147.76 MB/s
      
      2.33 GHz Intel Xeon E5435  (Linux)
      
      amd64 (1.5x SLOWER)
      
      IndexByte4K            200000          10601 ns/op      386.38 MB/s
      IndexByte4M               100       10827240 ns/op      387.38 MB/s
      IndexByte64M               10      173175500 ns/op      387.52 MB/s
      
      IndexBytePortable4K    500000           7082 ns/op      578.37 MB/s
      IndexBytePortable4M       500        7391792 ns/op      567.43 MB/s
      IndexBytePortable64M       20      122618550 ns/op      547.30 MB/s
      
      386 (3x faster)
      
      IndexByte4K            200000          11074 ns/op      369.88 MB/s
      IndexByte4M               100       10902620 ns/op      384.71 MB/s
      IndexByte64M               10      181292800 ns/op      370.17 MB/s
      
      IndexBytePortable4K     50000          31725 ns/op      129.11 MB/s
      IndexBytePortable4M        50       32564880 ns/op      128.80 MB/s
      IndexBytePortable64M        2      545926000 ns/op      122.93 MB/s
      
      2.33 GHz Intel Core2 T7600 (MacBook Pro, OS X)
      
      amd64 (1.4x SLOWER)
      
      IndexByte4K            200000          11120 ns/op      368.35 MB/s
      IndexByte4M               100       11531950 ns/op      363.71 MB/s
      IndexByte64M               10      184819000 ns/op      363.11 MB/s
      
      IndexBytePortable4K    500000           7419 ns/op      552.10 MB/s
      IndexBytePortable4M       200        8018710 ns/op      523.06 MB/s
      IndexBytePortable64M       10      127614900 ns/op      525.87 MB/s
      
      386 (3x faster)
      
      IndexByte4K            200000          11114 ns/op      368.54 MB/s
      IndexByte4M               100       11443530 ns/op      366.52 MB/s
      IndexByte64M               10      185212000 ns/op      362.34 MB/s
      
      IndexBytePortable4K     50000          32891 ns/op      124.53 MB/s
      IndexBytePortable4M        50       33930580 ns/op      123.61 MB/s
      IndexBytePortable64M        2      545400500 ns/op      123.05 MB/s
      
      1.83 GHz Intel Core2 T5600  (Mac Mini, OS X)
      
      amd64 (no difference)
      
      IndexByte4K            200000          13497 ns/op      303.47 MB/s
      IndexByte4M               100       13890650 ns/op      301.95 MB/s
      IndexByte64M                5      222358000 ns/op      301.81 MB/s
      
      IndexBytePortable4K    200000          13584 ns/op      301.53 MB/s
      IndexBytePortable4M       100       13913280 ns/op      301.46 MB/s
      IndexBytePortable64M       10      222572600 ns/op      301.51 MB/s
      
      386 (3x faster)
      
      IndexByte4K            200000          13565 ns/op      301.95 MB/s
      IndexByte4M               100       13882640 ns/op      302.13 MB/s
      IndexByte64M                5      221411600 ns/op      303.10 MB/s
      
      IndexBytePortable4K     50000          39978 ns/op      102.46 MB/s
      IndexBytePortable4M        50       41038160 ns/op      102.20 MB/s
      IndexBytePortable64M        2      656362500 ns/op      102.24 MB/s
      
      R=r
      CC=golang-dev
      https://golang.org/cl/166055
      d6b3f37e
    • Russ Cox's avatar
      2a5f0c67
    • Russ Cox's avatar
      make Native Client support build again, · 609eeee8
      Russ Cox authored
      add README explaining how to try the
      web demos.
      
      Fixes #339.
      
      R=r
      CC=barry.d.silverman, bss, vadim
      https://golang.org/cl/165057
      609eeee8
    • Russ Cox's avatar
      11384eec
    • Rob Pike's avatar
    • Russ Cox's avatar
    • Russ Cox's avatar
      net: turn off empty packet test by default · 3b858fb8
      Russ Cox authored
      Fixes #374.
      
      R=r
      https://golang.org/cl/166053
      3b858fb8
    • Russ Cox's avatar
    • Ken Thompson's avatar
      6g code gen bug · 62be24d9
      Ken Thompson authored
      R=rsc
      https://golang.org/cl/166052
      62be24d9
    • Michael Elkins's avatar
      Add Count, Cycle, ZipWith, GroupBy, Repeat, RepeatTimes, Unique to exp/iterable. · f3d63bea
      Michael Elkins authored
      Modify iterFunc to take chan<- instead of just chan.
      
      R=rsc, dsymonds1
      CC=golang-dev, r
      https://golang.org/cl/160064
      f3d63bea
    • Adam Langley's avatar
      crypto/rsa: fix shadowing error. · e93132c9
      Adam Langley authored
      Fixes bug 375.
      
      R=rsc
      https://golang.org/cl/165045
      e93132c9
    • Russ Cox's avatar
      runtime: fix Caller crash on 386. · cf37254b
      Russ Cox authored
      Fixes #176.
      
      R=r
      https://golang.org/cl/166044
      cf37254b
    • Russ Cox's avatar
      faq: add question about translation · 6301fb41
      Russ Cox authored
      R=jini, r
      https://golang.org/cl/163092
      6301fb41
    • Russ Cox's avatar
      9a86cc67
    • Russ Cox's avatar
      aaa2374b