[Webkit-unassigned] [Bug 75291] spill unboxed values in DFG 32_64

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Dec 27 22:51:23 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=75291


Yuqiang Xian <yuqiang.xian at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #120636|                            |review?
               Flag|                            |




--- Comment #1 from Yuqiang Xian <yuqiang.xian at intel.com>  2011-12-27 22:51:23 PST ---
Created an attachment (id=120636)
 --> (https://bugs.webkit.org/attachment.cgi?id=120636&action=review)
the patch

Performance result: slight win (~0.6%) on V8 on ia32 (Core i7 Nehalem) Linux.

Collected 12 samples per benchmark/VM, with 4 VM invocations per benchmark. Emitted a call to gc() between sample
measurements. Used 1 benchmark iteration per VM invocation for warm-up. Used the jsc-specific preciseTime()
function to get microsecond-level timing. Reporting benchmark execution times with 95% confidence intervals in
milliseconds.

                                               ToT             SpillIntCellBoolean
SunSpider:
   3d-cube                                7.3869+-0.0443          7.3310+-0.0571
   3d-morph                              10.6693+-0.0507    ?    10.6780+-0.0314       ?
   3d-raytrace                            9.6109+-0.0488          9.5656+-0.0453
   access-binary-trees                    1.8772+-0.0392          1.8675+-0.0386
   access-fannkuch                       10.5697+-0.0564    !    10.8662+-0.0418       ! definitely 1.0280x slower
   access-nbody                           5.3871+-0.0445    ?     5.4150+-0.0481       ?
   access-nsieve                          3.7314+-0.0487          3.6964+-0.0520
   bitops-3bit-bits-in-byte               1.1904+-0.0395    ?     1.1929+-0.0411       ?
   bitops-bits-in-byte                    4.5915+-0.0400          4.5815+-0.0261
   bitops-bitwise-and                     4.2406+-0.0293          4.2254+-0.0214
   bitops-nsieve-bits                     6.7305+-0.0821    ?     6.7554+-0.0808       ?
   controlflow-recursive                  2.8442+-0.0548          2.7793+-0.0585         might be 1.0234x faster
   crypto-aes                             9.6263+-0.0558    ^     9.5084+-0.0599       ^ definitely 1.0124x faster
   crypto-md5                             2.9443+-0.0457    ?     2.9561+-0.0424       ?
   crypto-sha1                            2.5448+-0.0583          2.5068+-0.0467         might be 1.0152x faster
   date-format-tofte                     12.5186+-0.0811    ^    11.6395+-0.0432       ^ definitely 1.0755x faster
   date-format-xparb                     12.0059+-1.0066         11.8873+-0.0705
   math-cordic                            9.2077+-0.0509          9.1939+-0.0435
   math-partial-sums                     13.8908+-0.0561    ?    13.9097+-0.0466       ?
   math-spectral-norm                     2.6147+-0.0503          2.5875+-0.0421         might be 1.0105x faster
   regexp-dna                             9.1039+-0.0630    ?     9.1299+-0.0819       ?
   string-base64                          5.4430+-0.0586          5.4265+-0.0555
   string-fasta                           9.5071+-0.0423          9.4714+-0.0579
   string-tagcloud                       15.4707+-0.0764    ^    15.3426+-0.0423       ^ definitely 1.0083x faster
   string-unpack-code                    24.3361+-0.1073         24.2747+-0.0494
   string-validate-input                  7.4383+-0.0473    ^     7.2637+-0.0198       ^ definitely 1.0240x faster

   <arithmetic> *                         7.9032+-0.0457          7.8482+-0.0194         might be 1.0070x faster
   <geometric>                            6.3109+-0.0261          6.2710+-0.0247         might be 1.0064x faster
   <harmonic>                             4.8023+-0.0345          4.7752+-0.0385         might be 1.0057x faster

                                               ToT             SpillIntCellBoolean
V8:
   crypto                                97.2088+-0.4892    ^    95.0872+-0.3198       ^ definitely 1.0223x faster
   deltablue                            168.1859+-0.7193        167.2954+-0.5290
   earley-boyer                         107.8478+-0.3034        107.5352+-0.1209
   raytrace                              53.3845+-0.7817         52.8807+-0.5329
   regexp                               127.4918+-0.1960        126.9930+-0.3157
   richards                             173.9396+-0.4849    ?   176.4387+-2.2390       ? might be 1.0144x slower
   splay                                126.4676+-0.4146    ^   124.5180+-0.4407       ^ definitely 1.0157x faster

   <arithmetic>                         122.0751+-0.2284        121.5355+-0.3470         might be 1.0044x faster
   <geometric> *                        114.8709+-0.3256    ^   114.1350+-0.2897       ^ definitely 1.0064x faster
   <harmonic>                           106.4733+-0.5046    ^   105.6085+-0.3493       ^ definitely 1.0082x faster

                                               ToT             SpillIntCellBoolean
Kraken:
   ai-astar                             782.0847+-2.3402        779.7733+-0.9971
   audio-beat-detection                 241.6800+-1.9073        239.4006+-0.5053
   audio-dft                            364.3798+-3.5149        363.2535+-4.4820
   audio-fft                            155.4703+-0.3388    ^   153.7778+-0.0465       ^ definitely 1.0110x faster
   audio-oscillator                     336.4074+-2.4092    ?   338.0959+-2.2200       ?
   imaging-darkroom                     382.7754+-10.0518       381.5660+-9.4657
   imaging-desaturate                   315.5066+-0.1044    !   316.6295+-0.7696       ! definitely 1.0036x slower
   imaging-gaussian-blur                590.4285+-1.8883    ?   593.3130+-1.6824       ?
   json-parse-financial                  68.5218+-0.4322         67.9758+-0.3699
   json-stringify-tinderbox             102.3024+-1.0079        101.5212+-0.4966
   stanford-crypto-aes                  131.8947+-0.3136    ?   131.8996+-0.3047       ?
   stanford-crypto-ccm                  128.3543+-0.4875    ^   126.8451+-0.5070       ^ definitely 1.0119x faster
   stanford-crypto-pbkdf2               278.4242+-0.7731    ?   278.9995+-0.9072       ?
   stanford-crypto-sha256-iterative     108.8647+-0.4102        107.9071+-0.7944

   <arithmetic> *                       284.7925+-1.1519        284.3541+-1.0069         might be 1.0015x faster
   <geometric>                          226.2851+-0.8740        225.4726+-0.7258         might be 1.0036x faster
   <harmonic>                           180.4876+-0.6601        179.4361+-0.5094         might be 1.0059x faster

                                               ToT             SpillIntCellBoolean
All benchmarks:
   <arithmetic>                         107.3852+-0.3860        107.1438+-0.3251         might be 1.0023x faster
   <geometric>                           28.2377+-0.0990         28.0817+-0.0866         might be 1.0056x faster
   <harmonic>                             8.4572+-0.0597          8.4093+-0.0663         might be 1.0057x faster

                                               ToT             SpillIntCellBoolean
Geomean of preferred means:
   <scaled-result>                       63.7054+-0.2187         63.3890+-0.1483         might be 1.0050x faster

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