[Webkit-unassigned] [Bug 67554] DFG variable predictions only work for local variables, not temporaries
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Fri Sep 2 23:21:39 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=67554
--- Comment #2 from Filip Pizlo <fpizlo at apple.com> 2011-09-02 23:21:39 PST ---
This is the performance:
Benchmark report for SunSpider, V8, and Kraken.
VMs tested:
"TipOfTree" at /Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc
"ResizeVarPreds" at /Volumes/Data/pizlo/septenary/OpenSource/WebKitBuild/Release/jsc
Collected 12 samples per benchmark/VM, with 4 VM invocations per benchmark. 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.
TipOfTree ResizeVarPreds
SunSpider:
3d-cube 8.0769+-0.2633 7.8421+-0.1866 might be 1.0299x faster
3d-morph 7.9217+-0.1421 ^ 7.6166+-0.1522 ^ definitely 1.0401x faster
3d-raytrace 7.5407+-0.2822 ? 7.5764+-0.1596 ?
access-binary-trees 2.3041+-0.0434 2.2708+-0.0502 might be 1.0147x faster
access-fannkuch 11.9338+-0.2432 11.9160+-0.2582
access-nbody 4.2317+-0.0457 ? 4.3202+-0.0630 ? might be 1.0209x slower
access-nsieve 2.6031+-0.1330 2.5357+-0.0514 might be 1.0266x faster
bitops-3bit-bits-in-byte 1.7767+-0.0823 1.7109+-0.0568 might be 1.0385x faster
bitops-bits-in-byte 4.5004+-0.1841 ? 4.6038+-0.2552 ? might be 1.0230x slower
bitops-bitwise-and 3.7526+-0.1117 3.7345+-0.0547
bitops-nsieve-bits 5.4707+-0.1478 ? 5.5343+-0.1609 ? might be 1.0116x slower
controlflow-recursive 2.0275+-0.0386 ? 2.1304+-0.0970 ? might be 1.0507x slower
crypto-aes 6.5957+-0.1562 6.5791+-0.1279
crypto-md5 2.7703+-0.0633 2.7343+-0.0570 might be 1.0132x faster
crypto-sha1 2.3163+-0.0783 2.2194+-0.0506 might be 1.0437x faster
date-format-tofte 10.3854+-0.2497 ? 10.3987+-0.3102 ?
date-format-xparb 8.8015+-0.2505 8.7822+-0.2139
math-cordic 6.4468+-0.0492 ? 6.4918+-0.0753 ?
math-partial-sums 8.1159+-0.2666 7.8487+-0.2188 might be 1.0340x faster
math-spectral-norm 2.5621+-0.0720 2.5355+-0.0520 might be 1.0105x faster
regexp-dna 10.3926+-0.0760 ? 10.4463+-0.1122 ?
string-base64 6.1697+-0.2178 ? 6.2009+-0.2772 ?
string-fasta 7.5724+-0.1146 7.4252+-0.1236 might be 1.0198x faster
string-tagcloud 12.3140+-0.4933 12.2323+-0.2761
string-unpack-code 18.9475+-0.4868 ? 19.3867+-0.4740 ? might be 1.0232x slower
string-validate-input 7.4412+-0.2151 ? 7.4739+-0.2596 ?
<arithmetic> 6.6527+-0.0453 6.6364+-0.0350
<geometric> 5.5332+-0.0355 5.5064+-0.0282
<harmonic> 4.5285+-0.0383 4.4957+-0.0263
TipOfTree ResizeVarPreds
V8:
crypto 92.3651+-0.3348 92.3497+-0.5405
deltablue 144.0207+-0.8783 143.1391+-1.0990
earley-boyer 100.5560+-0.5754 ? 100.5589+-0.5720 ?
raytrace 52.9002+-0.3640 52.4050+-0.3120
regexp 111.1890+-0.4171 ? 111.7704+-0.8885 ?
richards 246.2668+-0.7304 ? 249.7471+-4.0842 ? might be 1.0141x slower
splay 104.8678+-0.6789 ? 104.9036+-0.6532 ?
<arithmetic> 121.7380+-0.2460 ? 122.1249+-0.5218 ?
<geometric> 110.6561+-0.2208 ? 110.7121+-0.2636 ?
<harmonic> 101.1378+-0.2360 100.9628+-0.2184
TipOfTree ResizeVarPreds
Kraken:
ai-astar 1117.1826+-7.3669 1107.8483+-4.7591
audio-beat-detection 479.5615+-1.5012 ? 481.1826+-1.6781 ?
audio-dft 437.8244+-5.0489 ? 439.3640+-3.1897 ?
audio-fft 373.5425+-0.4485 ? 373.8119+-1.7038 ?
audio-oscillator 386.2704+-2.5483 385.2089+-1.5145
imaging-darkroom 560.4767+-1.9983 ^ 553.5504+-1.7509 ^ definitely 1.0125x faster
imaging-desaturate 601.5663+-7.9396 600.6047+-6.4242
imaging-gaussian-blur 1756.0249+-3.8117 ? 1760.0847+-4.2614 ?
json-parse-financial 48.0583+-0.4829 ? 48.1131+-0.2504 ?
json-stringify-tinderbox 73.4140+-0.3952 ? 73.4151+-0.3149 ?
stanford-crypto-aes 148.1695+-2.6645 146.9939+-0.8603
stanford-crypto-ccm 118.6461+-4.4542 ^ 113.2232+-0.5431 ^ definitely 1.0479x faster
stanford-crypto-pbkdf2 351.8983+-2.5204 348.3458+-1.5261 might be 1.0102x faster
stanford-crypto-sha256-iterative 134.3091+-0.8045 ^ 132.5642+-0.6250 ^ definitely 1.0132x faster
<arithmetic> 470.4960+-1.0338 ^ 468.8793+-0.5025 ^ definitely 1.0034x faster
<geometric> 304.3833+-1.0155 ^ 302.4315+-0.3470 ^ definitely 1.0065x faster
<harmonic> 187.9824+-0.9233 ^ 186.6012+-0.3609 ^ definitely 1.0074x faster
TipOfTree ResizeVarPreds
All benchmarks:
<arithmetic> 161.9592+-0.3159 161.5262+-0.1479
<geometric> 28.5211+-0.1086 28.3923+-0.0794
<harmonic> 7.9863+-0.0660 7.9289+-0.0452
--
Configure bugmail: https://bugs.webkit.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
More information about the webkit-unassigned
mailing list