[Webkit-unassigned] [Bug 68177] The DFG non-speculative JIT is no longer used and should be removed.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Sep 15 15:41:48 PDT 2011
https://bugs.webkit.org/show_bug.cgi?id=68177
--- Comment #2 from Filip Pizlo <fpizlo at apple.com> 2011-09-15 15:41:48 PST ---
Performance tests indicate that this refactoring didn't break anything big. Still running layout tests.
Benchmark report for SunSpider, V8, and Kraken.
VMs tested:
"TipOfTree" at /Volumes/Data/pizlo/septenary/OpenSource/WebKitBuild/Release/jsc
"TheNonSpecThe" at /Volumes/Data/pizlo/quartary/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 TheNonSpecThe
SunSpider:
3d-cube 7.6177+-0.1156 ? 7.7606+-0.1962 ? might be 1.0188x slower
3d-morph 7.5393+-0.2320 ? 7.6219+-0.1830 ? might be 1.0110x slower
3d-raytrace 7.7714+-0.2578 7.5804+-0.2339 might be 1.0252x faster
access-binary-trees 2.3403+-0.1317 ? 2.3491+-0.0605 ?
access-fannkuch 11.5210+-0.2266 11.4543+-0.2352
access-nbody 4.2669+-0.0950 4.1249+-0.0852 might be 1.0344x faster
access-nsieve 2.6167+-0.0547 2.5910+-0.0570
bitops-3bit-bits-in-byte 1.7149+-0.0711 1.6641+-0.0414 might be 1.0305x faster
bitops-bits-in-byte 2.7302+-0.0770 ? 2.7872+-0.0475 ? might be 1.0209x slower
bitops-bitwise-and 3.6835+-0.1097 3.5397+-0.0759 might be 1.0406x faster
bitops-nsieve-bits 5.2826+-0.1478 5.2773+-0.0838
controlflow-recursive 1.9993+-0.0516 1.9780+-0.0702 might be 1.0108x faster
crypto-aes 7.0485+-0.4404 6.9846+-0.2883
crypto-md5 2.8006+-0.0772 ? 3.3002+-0.6366 ? might be 1.1784x slower
crypto-sha1 2.1984+-0.0615 ? 2.2656+-0.0758 ? might be 1.0305x slower
date-format-tofte 10.6388+-0.4510 10.2994+-0.2232 might be 1.0330x faster
date-format-xparb 9.0774+-0.6078 8.8395+-0.2180 might be 1.0269x faster
math-cordic 6.2369+-0.1227 6.2271+-0.0884
math-partial-sums 7.4144+-0.1098 7.3608+-0.1278
math-spectral-norm 2.6606+-0.1141 2.6382+-0.0876
regexp-dna 11.1858+-0.4029 11.0782+-0.3356
string-base64 5.8766+-0.3127 5.7979+-0.2424 might be 1.0136x faster
string-fasta 7.1525+-0.1607 7.0287+-0.2103 might be 1.0176x faster
string-tagcloud 12.1184+-0.3133 ? 12.1203+-0.4079 ?
string-unpack-code 18.6965+-0.5085 ? 19.0846+-0.5797 ? might be 1.0208x slower
string-validate-input 6.7369+-0.2145 6.7058+-0.2513
<arithmetic> 6.4972+-0.0399 6.4792+-0.0494
<geometric> 5.3523+-0.0373 5.3443+-0.0431
<harmonic> 4.3619+-0.0507 4.3610+-0.0394
TipOfTree TheNonSpecThe
V8:
crypto 83.4792+-0.6764 83.1459+-0.4669
deltablue 245.5458+-1.6084 244.7773+-2.4858
earley-boyer 95.4794+-1.0822 ? 95.8919+-0.8258 ?
raytrace 73.3252+-0.5046 73.1796+-0.7989
regexp 107.4445+-0.6514 ? 107.7198+-0.5681 ?
richards 221.3328+-1.8472 220.4779+-1.2757
splay 100.5540+-1.1823 99.2863+-1.3507 might be 1.0128x faster
<arithmetic> 132.4516+-0.4749 132.0684+-0.7092
<geometric> 119.2531+-0.4279 118.9338+-0.5794
<harmonic> 109.4740+-0.4200 109.1951+-0.5315
TipOfTree TheNonSpecThe
Kraken:
ai-astar 633.2072+-3.1198 ? 634.0155+-5.6007 ?
audio-beat-detection 483.5001+-6.8955 480.5581+-7.4540
audio-dft 431.6491+-6.5128 429.2882+-5.2847
audio-fft 372.8691+-1.7360 369.3022+-1.9860
audio-oscillator 317.6334+-1.8057 ? 317.8665+-1.2358 ?
imaging-darkroom 428.3435+-9.1983 419.3040+-1.7876 might be 1.0216x faster
imaging-desaturate 207.9498+-0.5476 ? 209.7226+-1.7717 ?
imaging-gaussian-blur 1730.3700+-2.7285 ? 1734.7773+-5.0711 ?
json-parse-financial 49.0744+-0.4401 ? 49.1756+-0.2212 ?
json-stringify-tinderbox 69.9297+-0.5986 ? 70.2837+-1.3321 ?
stanford-crypto-aes 145.6043+-0.9866 145.1874+-0.8767
stanford-crypto-ccm 113.0345+-0.9881 112.1558+-0.6815
stanford-crypto-pbkdf2 397.3920+-2.2566 ? 398.4926+-2.9769 ?
stanford-crypto-sha256-iterative 150.0585+-1.5669 149.3581+-0.5932
<arithmetic> 395.0440+-0.9378 394.2491+-1.1606
<geometric> 264.2923+-0.5908 263.6392+-0.6825
<harmonic> 176.9877+-0.5693 176.8618+-0.5881
TipOfTree TheNonSpecThe
All benchmarks:
<arithmetic> 140.9937+-0.2860 140.6899+-0.3304
<geometric> 27.1488+-0.1023 27.0951+-0.1256
<harmonic> 7.7001+-0.0873 7.6982+-0.0679
--
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