[Webkit-unassigned] [Bug 72312] DFG code blocks that have speculation checks on objects should refer to those objects weakly
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Nov 16 22:53:34 PST 2011
https://bugs.webkit.org/show_bug.cgi?id=72312
--- Comment #2 from Filip Pizlo <fpizlo at apple.com> 2011-11-16 22:53:34 PST ---
This passes all tests and does not affect performance.
[pizlo at nitroflex bencher] ./bencher TipOfTree:/Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc DFGWeakFixpoint:/Volumes/Data/pizlo/tertiary/OpenSource/WebKitBuild/Release/jsc --remote bigmac,oldmac --local
Packaging VM builds for remote hosts...
Sending VM builds to bigmac...
Running on bigmac...
376/376
Generating benchmark report at TipOfTree_DFGWeakFixpoint_SunSpiderV8Kraken_20111116_2231_benchReport.txt
Benchmark report for SunSpider, V8, and Kraken on bigmac.local (MacPro5,1).
VMs tested:
"TipOfTree" at /Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc (r100556)
"DFGWeakFixpoint" at /Volumes/Data/pizlo/tertiary/OpenSource/WebKitBuild/Release/jsc (r100556)
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.
TipOfTree DFGWeakFixpoint
SunSpider:
3d-cube 7.4025+-0.0318 ? 7.4205+-0.0591 ?
3d-morph 8.5759+-0.1344 ^ 8.3710+-0.0468 ^ definitely 1.0245x faster
3d-raytrace 7.7128+-0.0510 7.7036+-0.0581
access-binary-trees 1.5980+-0.0042 ? 1.5990+-0.0170 ?
access-fannkuch 7.5230+-0.0142 ? 7.5241+-0.0135 ?
access-nbody 4.1804+-0.0190 4.1720+-0.0057
access-nsieve 3.1509+-0.0438 ? 3.1579+-0.0404 ?
bitops-3bit-bits-in-byte 1.2410+-0.0135 1.2386+-0.0150
bitops-bits-in-byte 4.9122+-0.0111 ? 4.9190+-0.0144 ?
bitops-bitwise-and 3.2869+-0.0055 3.2857+-0.0082
bitops-nsieve-bits 5.6567+-0.0421 ? 5.6683+-0.0517 ?
controlflow-recursive 2.2911+-0.0140 ? 2.2963+-0.0251 ?
crypto-aes 7.1446+-0.0363 ? 7.1503+-0.0403 ?
crypto-md5 2.5014+-0.0194 ? 2.5064+-0.0112 ?
crypto-sha1 2.1775+-0.0164 ? 2.1810+-0.0207 ?
date-format-tofte 10.6195+-0.0757 ? 10.6559+-0.0350 ?
date-format-xparb 11.0232+-0.1290 10.7497+-0.1798 might be 1.0254x faster
math-cordic 7.1711+-0.0601 7.1227+-0.0152
math-partial-sums 10.4554+-0.0438 10.4411+-0.0189
math-spectral-norm 2.6151+-0.0258 2.6041+-0.0217
regexp-dna 12.9846+-0.0596 12.9728+-0.0542
string-base64 3.9285+-0.0148 ? 3.9315+-0.0093 ?
string-fasta 7.3736+-0.0234 ! 7.4478+-0.0469 ! definitely 1.0101x slower
string-tagcloud 12.9813+-0.0696 ? 13.0143+-0.0725 ?
string-unpack-code 22.2271+-0.0721 22.0984+-0.0928
string-validate-input 5.7264+-0.2076 5.6436+-0.0373 might be 1.0147x faster
<arithmetic> * 6.7869+-0.0206 6.7644+-0.0206 might be 1.0033x faster
<geometric> 5.4023+-0.0186 5.3910+-0.0189 might be 1.0021x faster
<harmonic> 4.2005+-0.0174 4.1965+-0.0198 might be 1.0010x faster
TipOfTree DFGWeakFixpoint
V8:
crypto 77.4661+-0.2099 77.2271+-0.2656
deltablue 168.4244+-0.9719 ? 170.2991+-0.9884 ? might be 1.0111x slower
earley-boyer 104.4967+-1.4653 ? 104.6927+-1.4071 ?
raytrace 62.8356+-0.5364 ? 63.5544+-0.4021 ? might be 1.0114x slower
regexp 124.3039+-0.3228 123.5584+-0.5526
richards 137.9984+-1.1186 137.4574+-0.2484
splay 90.2481+-1.0749 ? 90.3772+-1.1051 ?
<arithmetic> 109.3962+-0.4163 ? 109.5952+-0.3137 ? might be 1.0018x slower
<geometric> * 104.1090+-0.4122 ? 104.2988+-0.2974 ? might be 1.0018x slower
<harmonic> 98.9935+-0.4152 ? 99.2217+-0.2908 ? might be 1.0023x slower
TipOfTree DFGWeakFixpoint
Kraken:
ai-astar 827.1420+-0.4496 817.6509+-10.4008 might be 1.0116x faster
audio-beat-detection 204.3278+-1.0583 203.6777+-0.6133
audio-dft 260.7611+-2.6100 259.3759+-1.9791
audio-fft 133.7633+-1.0539 133.0065+-0.6485
audio-oscillator 293.5864+-0.5500 293.4817+-0.4592
imaging-darkroom 338.4275+-5.2683 338.0507+-4.9685
imaging-desaturate 240.7667+-0.0978 ? 240.8129+-0.0949 ?
imaging-gaussian-blur 620.4826+-0.2404 ? 620.6064+-0.3426 ?
json-parse-financial 73.7686+-0.2356 ! 74.3384+-0.0356 ! definitely 1.0077x slower
json-stringify-tinderbox 86.8172+-0.6073 86.5426+-0.1903
stanford-crypto-aes 117.9453+-1.3677 116.9190+-0.3102
stanford-crypto-ccm 117.2711+-2.1838 115.7353+-0.7542 might be 1.0133x faster
stanford-crypto-pbkdf2 233.0118+-0.9260 ^ 231.2346+-0.6784 ^ definitely 1.0077x faster
stanford-crypto-sha256-iterative 92.7507+-0.2058 ? 92.8232+-0.2092 ?
<arithmetic> * 260.0587+-0.4855 258.8754+-0.8583 might be 1.0046x faster
<geometric> 200.3032+-0.5880 199.5797+-0.3308 might be 1.0036x faster
<harmonic> 161.4670+-0.6430 161.0342+-0.1887 might be 1.0027x faster
TipOfTree DFGWeakFixpoint
All benchmarks:
<arithmetic> 97.5118+-0.1409 97.1765+-0.2359 might be 1.0035x faster
<geometric> 24.6230+-0.0601 24.5745+-0.0557 might be 1.0020x faster
<harmonic> 7.4048+-0.0301 7.3978+-0.0342 might be 1.0009x faster
TipOfTree DFGWeakFixpoint
Geomean of preferred means:
<scaled-result> 56.8516+-0.1218 56.7367+-0.1020 might be 1.0020x faster
Sending VM builds to oldmac...
Running on oldmac...
376/376
Generating benchmark report at TipOfTree_DFGWeakFixpoint_SunSpiderV8Kraken_20111116_2236_benchReport.txt
Benchmark report for SunSpider, V8, and Kraken on oldmac.local (MacPro4,1).
VMs tested:
"TipOfTree" at /Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc (r100556)
"DFGWeakFixpoint" at /Volumes/Data/pizlo/tertiary/OpenSource/WebKitBuild/Release/jsc (r100556)
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.
TipOfTree DFGWeakFixpoint
SunSpider:
3d-cube 8.9939+-0.0825 8.9444+-0.0435
3d-morph 10.5753+-0.1637 ^ 10.1176+-0.0361 ^ definitely 1.0452x faster
3d-raytrace 9.2619+-0.1168 9.2029+-0.0666
access-binary-trees 1.9065+-0.0090 ? 1.9100+-0.0080 ?
access-fannkuch 9.0863+-0.0115 9.0832+-0.0096
access-nbody 5.0490+-0.0226 5.0372+-0.0054
access-nsieve 3.7179+-0.0075 3.7178+-0.0181
bitops-3bit-bits-in-byte 1.4891+-0.0091 ? 1.4896+-0.0123 ?
bitops-bits-in-byte 5.9343+-0.0082 5.9278+-0.0139
bitops-bitwise-and 3.9691+-0.0086 ? 3.9845+-0.0265 ?
bitops-nsieve-bits 6.8083+-0.0471 ? 6.8819+-0.0630 ? might be 1.0108x slower
controlflow-recursive 2.7662+-0.0176 2.7626+-0.0219
crypto-aes 8.6018+-0.0531 ? 8.6409+-0.0500 ?
crypto-md5 2.9910+-0.0141 ? 2.9935+-0.0204 ?
crypto-sha1 2.6066+-0.0201 ? 2.6198+-0.0335 ?
date-format-tofte 12.9102+-0.0856 ? 13.1692+-0.1851 ? might be 1.0201x slower
date-format-xparb 13.8851+-0.4087 ^ 13.2598+-0.1603 ^ definitely 1.0472x faster
math-cordic 8.6070+-0.0225 ? 8.6158+-0.0197 ?
math-partial-sums 12.5914+-0.0258 ? 12.6221+-0.0323 ?
math-spectral-norm 3.1252+-0.0049 ? 3.1270+-0.0066 ?
regexp-dna 15.7101+-0.0735 15.6987+-0.0602
string-base64 4.7604+-0.0416 4.7557+-0.0330
string-fasta 8.9272+-0.0259 ? 8.9639+-0.0251 ?
string-tagcloud 15.8031+-0.0985 ? 15.8938+-0.0961 ?
string-unpack-code 27.4174+-0.0675 ? 27.4486+-0.0542 ?
string-validate-input 6.8051+-0.0814 ? 6.8241+-0.0696 ?
<arithmetic> * 8.2423+-0.0338 8.2189+-0.0274 might be 1.0028x faster
<geometric> 6.5256+-0.0248 6.5147+-0.0231 might be 1.0017x faster
<harmonic> 5.0506+-0.0188 5.0500+-0.0194 might be 1.0001x faster
TipOfTree DFGWeakFixpoint
V8:
crypto 93.4672+-0.3147 93.2981+-0.3405
deltablue 202.9885+-1.2812 ? 204.3343+-0.5945 ?
earley-boyer 126.5185+-1.7474 125.8953+-1.3421
raytrace 75.8272+-0.4731 ? 76.3673+-0.6252 ?
regexp 148.4860+-0.3750 147.8853+-0.2487
richards 165.9017+-0.3001 ? 166.2819+-0.4990 ?
splay 106.3137+-0.7282 ? 106.3880+-1.1149 ?
<arithmetic> 131.3575+-0.3553 ? 131.4929+-0.3208 ? might be 1.0010x slower
<geometric> * 124.9888+-0.3483 ? 125.0944+-0.3708 ? might be 1.0008x slower
<harmonic> 118.8639+-0.3498 ? 118.9853+-0.4081 ? might be 1.0010x slower
TipOfTree DFGWeakFixpoint
Kraken:
ai-astar 895.1609+-0.6140 ? 895.5434+-0.7446 ?
audio-beat-detection 250.0935+-1.7636 248.3998+-0.6289
audio-dft 314.9273+-2.6615 314.3998+-2.6952
audio-fft 162.4365+-1.1958 ? 162.7427+-1.1187 ?
audio-oscillator 351.4217+-1.3468 ! 358.3105+-3.1365 ! definitely 1.0196x slower
imaging-darkroom 403.5768+-5.8311 ? 405.5841+-6.4234 ?
imaging-desaturate 291.2551+-0.0914 291.1852+-0.0766
imaging-gaussian-blur 750.6847+-0.1627 ? 750.7431+-0.1130 ?
json-parse-financial 90.0316+-0.3616 ? 90.6249+-0.3743 ?
json-stringify-tinderbox 105.1410+-0.7503 105.0963+-0.5095
stanford-crypto-aes 139.6053+-0.3937 ! 145.2645+-3.7119 ! definitely 1.0405x slower
stanford-crypto-ccm 137.8774+-0.7153 ? 138.7943+-0.7749 ?
stanford-crypto-pbkdf2 281.4804+-2.2261 281.2057+-2.3171
stanford-crypto-sha256-iterative 112.7609+-0.1899 112.6113+-0.2735
<arithmetic> * 306.1752+-0.5808 ? 307.1790+-0.6449 ? might be 1.0033x slower
<geometric> 239.5798+-0.4921 ! 240.7382+-0.6096 ! definitely 1.0048x slower
<harmonic> 194.4552+-0.4400 ! 195.5881+-0.5319 ! definitely 1.0058x slower
TipOfTree DFGWeakFixpoint
All benchmarks:
<arithmetic> 115.3246+-0.1789 ? 115.6308+-0.1878 ? might be 1.0027x slower
<geometric> 29.6285+-0.0779 ? 29.6475+-0.0724 ? might be 1.0006x slower
<harmonic> 8.9036+-0.0327 8.9033+-0.0336 might be 1.0000x faster
TipOfTree DFGWeakFixpoint
Geomean of preferred means:
<scaled-result> 68.0707+-0.1521 ? 68.0999+-0.1367 ? might be 1.0004x slower
Running locally...
376/376
Generating benchmark report at TipOfTree_DFGWeakFixpoint_SunSpiderV8Kraken_20111116_2238_benchReport.txt
Benchmark report for SunSpider, V8, and Kraken on nitroflex.local (MacBookPro8,2).
VMs tested:
"TipOfTree" at /Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc (r100556)
"DFGWeakFixpoint" at /Volumes/Data/pizlo/tertiary/OpenSource/WebKitBuild/Release/jsc (r100556)
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.
TipOfTree DFGWeakFixpoint
SunSpider:
3d-cube 6.9460+-0.1867 6.7194+-0.1208 might be 1.0337x faster
3d-morph 7.6314+-0.1379 ? 7.6325+-0.1602 ?
3d-raytrace 7.2052+-0.1985 7.1258+-0.1072 might be 1.0111x faster
access-binary-trees 1.5625+-0.0849 1.5398+-0.0517 might be 1.0147x faster
access-fannkuch 6.1227+-0.0908 6.1188+-0.0846
access-nbody 3.4842+-0.0867 3.3981+-0.0667 might be 1.0254x faster
access-nsieve 2.4985+-0.0530 ? 2.5069+-0.0756 ?
bitops-3bit-bits-in-byte 1.2494+-0.0190 ? 1.2716+-0.0358 ? might be 1.0178x slower
bitops-bits-in-byte 2.3695+-0.0817 2.3440+-0.0654 might be 1.0109x faster
bitops-bitwise-and 3.4721+-0.0672 3.4238+-0.0743 might be 1.0141x faster
bitops-nsieve-bits 5.1600+-0.0369 ? 5.2602+-0.0785 ? might be 1.0194x slower
controlflow-recursive 2.0428+-0.0329 ? 2.0540+-0.0554 ?
crypto-aes 6.9739+-0.1714 6.9190+-0.1607
crypto-md5 2.3774+-0.0536 2.2922+-0.0375 might be 1.0372x faster
crypto-sha1 2.0697+-0.0512 2.0302+-0.0488 might be 1.0195x faster
date-format-tofte 9.9694+-0.2594 ? 10.0733+-0.1845 ? might be 1.0104x slower
date-format-xparb 9.9780+-0.1308 ! 10.5261+-0.1992 ! definitely 1.0549x slower
math-cordic 6.3460+-0.0750 ? 6.3696+-0.1468 ?
math-partial-sums 7.4234+-0.1088 7.3576+-0.1024
math-spectral-norm 2.3826+-0.0537 2.2977+-0.0415 might be 1.0369x faster
regexp-dna 10.7769+-0.1826 ? 10.9456+-0.1406 ? might be 1.0157x slower
string-base64 3.8982+-0.1135 ? 3.8995+-0.1257 ?
string-fasta 6.5992+-0.1566 6.5441+-0.1320
string-tagcloud 11.5205+-0.2195 11.4117+-0.3031
string-unpack-code 20.1020+-0.2994 19.8269+-0.3950 might be 1.0139x faster
string-validate-input 5.2314+-0.0889 ? 5.3145+-0.1251 ? might be 1.0159x slower
<arithmetic> * 5.9767+-0.0226 5.9693+-0.0255 might be 1.0012x faster
<geometric> 4.7696+-0.0276 4.7506+-0.0265 might be 1.0040x faster
<harmonic> 3.7707+-0.0358 3.7468+-0.0301 might be 1.0064x faster
TipOfTree DFGWeakFixpoint
V8:
crypto 69.5986+-0.3279 ? 69.7588+-0.3738 ?
deltablue 149.5710+-1.8420 ? 149.6216+-1.6266 ?
earley-boyer 85.3260+-0.6411 84.8371+-0.8974
raytrace 55.7197+-0.3247 55.5022+-0.4194
regexp 102.2668+-0.3653 101.9430+-0.3022
richards 116.7542+-0.4597 ? 117.0623+-0.7954 ?
splay 70.5089+-0.7751 ? 71.5232+-1.3310 ? might be 1.0144x slower
<arithmetic> 92.8207+-0.3544 ? 92.8926+-0.4306 ? might be 1.0008x slower
<geometric> * 88.2391+-0.3096 ? 88.3206+-0.4070 ? might be 1.0009x slower
<harmonic> 84.0796+-0.2990 ? 84.1629+-0.4063 ? might be 1.0010x slower
TipOfTree DFGWeakFixpoint
Kraken:
ai-astar 485.9056+-4.6336 ? 486.6909+-3.7186 ?
audio-beat-detection 189.0524+-2.1896 186.4712+-0.5929 might be 1.0138x faster
audio-dft 261.3420+-2.3663 ? 262.4310+-2.9045 ?
audio-fft 121.7954+-0.6730 ? 122.6599+-0.8257 ?
audio-oscillator 248.7274+-0.8064 ? 248.9647+-1.9696 ?
imaging-darkroom 299.4438+-6.1518 296.2831+-5.4980 might be 1.0107x faster
imaging-desaturate 221.6356+-0.6927 ? 221.8542+-0.6321 ?
imaging-gaussian-blur 544.9619+-2.2368 ? 547.5263+-3.7770 ?
json-parse-financial 57.3320+-0.4201 57.1369+-0.2277
json-stringify-tinderbox 72.7738+-0.9726 72.2742+-0.3048
stanford-crypto-aes 94.6696+-0.4103 94.5581+-0.7075
stanford-crypto-ccm 98.3032+-0.4316 ? 98.3397+-0.6751 ?
stanford-crypto-pbkdf2 186.2725+-0.6082 ! 187.6683+-0.7824 ! definitely 1.0075x slower
stanford-crypto-sha256-iterative 79.5267+-0.2744 ? 79.6907+-0.3087 ?
<arithmetic> * 211.5530+-0.5515 ? 211.6107+-0.6581 ? might be 1.0003x slower
<geometric> 168.6919+-0.2784 168.6176+-0.3932 might be 1.0004x faster
<harmonic> 135.9649+-0.2866 135.8237+-0.2465 might be 1.0010x faster
TipOfTree DFGWeakFixpoint
All benchmarks:
<arithmetic> 80.1464+-0.1555 ? 80.1702+-0.1736 ? might be 1.0003x slower
<geometric> 21.3056+-0.0684 21.2587+-0.0709 might be 1.0022x faster
<harmonic> 6.6370+-0.0615 6.5960+-0.0518 might be 1.0062x faster
TipOfTree DFGWeakFixpoint
Geomean of preferred means:
<scaled-result> 48.1403+-0.0747 48.1397+-0.1053 might be 1.0000x faster
[pizlo at nitroflex bencher]
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