[Webkit-unassigned] [Bug 19250] Sunspider gets progressively slower

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue May 27 06:21:52 PDT 2008


http://bugs.webkit.org/show_bug.cgi?id=19250





------- Comment #1 from sherlock at genome.stanford.edu  2008-05-27 06:21 PDT -------
Note, this behavior is also observed under 3.1.1 (5525.18).  The slow down as a
percentage and in terms of milliseconds is not as extreme, though I don't know
whether that qualifies this as a regression.  A comparison of the 1st and 5th
runs under 3.1.1, on the same machine as I used for r34130, is below:

TEST                   COMPARISON            FROM                 TO           
 DETAILS

=============================================================================

** TOTAL **:           *1.02x as slow*   2858.6ms +/- 0.3%   2923.8ms +/- 0.3% 
   significant

=============================================================================

  3d:                  *1.04x as slow*    350.4ms +/- 0.8%    364.2ms +/- 0.8% 
   significant
    cube:              *1.09x as slow*    115.8ms +/- 2.1%    125.8ms +/- 0.8% 
   significant
    morph:             -                  120.4ms +/- 1.6%    119.2ms +/- 1.4% 
    raytrace:          *1.04x as slow*    114.2ms +/- 0.9%    119.2ms +/- 0.9% 
   significant

  access:              *1.03x as slow*    444.4ms +/- 0.7%    456.8ms +/- 0.2% 
   significant
    binary-trees:      *1.03x as slow*     60.4ms +/- 2.3%     62.4ms +/- 1.1% 
   significant
    fannkuch:          ??                 201.6ms +/- 1.5%    203.8ms +/- 0.7% 
   not conclusive: might be *1.01x as slow*
    nbody:             *1.07x as slow*    129.4ms +/- 1.1%    138.2ms +/- 0.4% 
   significant
    nsieve:            -                   53.0ms +/- 4.1%     52.4ms +/- 1.3% 

  bitops:              ??                 388.2ms +/- 1.2%    388.8ms +/- 0.7% 
   not conclusive: might be *1.00x as slow*
    3bit-bits-in-byte: -                   57.6ms +/- 1.2%     57.0ms +/- 2.2% 
    bits-in-byte:      ??                  85.4ms +/- 2.4%     85.6ms +/- 1.3% 
   not conclusive: might be *1.00x as slow*
    bitwise-and:       -                  146.4ms +/- 1.5%    145.8ms +/- 2.1% 
    nsieve-bits:       *1.02x as slow*     98.8ms +/- 1.1%    100.4ms +/- 0.7% 
   significant

  controlflow:         ??                  75.2ms +/- 0.7%     75.6ms +/- 0.9% 
   not conclusive: might be *1.01x as slow*
    recursive:         ??                  75.2ms +/- 0.7%     75.6ms +/- 0.9% 
   not conclusive: might be *1.01x as slow*

  crypto:              *1.02x as slow*    202.0ms +/- 0.4%    205.8ms +/- 0.5% 
   significant
    aes:               *1.02x as slow*     66.8ms +/- 0.8%     68.0ms +/- 0.0% 
   significant
    md5:               *1.02x as slow*     67.4ms +/- 1.0%     69.0ms +/- 0.0% 
   significant
    sha1:              *1.01x as slow*     67.8ms +/- 0.8%     68.8ms +/- 1.5% 
   significant

  date:                *1.02x as slow*    254.8ms +/- 0.2%    259.0ms +/- 0.5% 
   significant
    format-tofte:      *1.01x as slow*    116.8ms +/- 0.5%    118.2ms +/- 0.9% 
   significant
    format-xparb:      *1.02x as slow*    138.0ms +/- 0.0%    140.8ms +/- 0.4% 
   significant

  math:                *1.04x as slow*    391.4ms +/- 1.1%    407.4ms +/- 0.6% 
   significant
    cordic:            *1.04x as slow*    152.0ms +/- 1.6%    157.4ms +/- 0.7% 
   significant
    partial-sums:      *1.04x as slow*    167.0ms +/- 1.1%    173.4ms +/- 0.8% 
   significant
    spectral-norm:     *1.06x as slow*     72.4ms +/- 0.9%     76.6ms +/- 0.9% 
   significant

  regexp:              -                  185.0ms +/- 0.8%    184.2ms +/- 0.6% 
    dna:               -                  185.0ms +/- 0.8%    184.2ms +/- 0.6% 

  string:              *1.03x as slow*    567.2ms +/- 0.2%    582.0ms +/- 0.6% 
   significant
    base64:            *1.04x as slow*     84.6ms +/- 1.7%     87.8ms +/- 1.2% 
   significant
    fasta:             *1.01x as slow*    153.4ms +/- 0.4%    154.6ms +/- 0.7% 
   significant
    tagcloud:          *1.04x as slow*    113.6ms +/- 0.6%    118.0ms +/- 0.7% 
   significant
    unpack-code:       *1.01x as slow*    114.4ms +/- 1.2%    116.0ms +/- 0.8% 
   significant
    validate-input:    *1.04x as slow*    101.2ms +/- 0.5%    105.6ms +/- 2.4% 
   significant


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