Performance of a first-cut implementation of this... Benchmark report for SunSpider, V8, and Kraken on nitroflex.local (MacBookPro8,2). VMs tested: "TipOfTree" at /Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc (r101201) "NoGetMethod" at /Volumes/Data/pizlo/OpenSource/WebKitBuild/Release/jsc (r101201) "PrimGetBase" at /Volumes/Data/pizlo/secondary/OpenSource/WebKitBuild/Release/jsc (r101201) 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 NoGetMethod PrimGetBase PrimGetBase v. TipOfTree SunSpider: 3d-cube 7.0691+-0.1267 ? 7.0784+-0.2045 7.0039+-0.1187 3d-morph 7.6568+-0.1297 ? 7.8721+-0.1176 ? 8.1907+-0.6314 ? might be 1.0697x slower 3d-raytrace 7.2227+-0.2082 ? 7.2419+-0.1003 ? 7.3524+-0.2183 ? might be 1.0180x slower access-binary-trees 1.5380+-0.0657 ? 1.5739+-0.0693 1.5060+-0.0346 might be 1.0212x faster access-fannkuch 6.3594+-0.1295 6.2829+-0.0979 ? 6.2998+-0.1182 access-nbody 3.5279+-0.1152 3.5161+-0.0730 3.4945+-0.0643 access-nsieve 2.5946+-0.0572 2.5348+-0.0358 ? 2.6063+-0.0493 ? bitops-3bit-bits-in-byte 1.2410+-0.0187 ? 1.2566+-0.0210 ? 1.2926+-0.0251 ! definitely 1.0416x slower bitops-bits-in-byte 2.4381+-0.0789 2.4043+-0.0723 ? 2.4046+-0.0458 might be 1.0139x faster bitops-bitwise-and 3.4144+-0.0557 ? 3.5170+-0.0546 3.4899+-0.1262 ? might be 1.0221x slower bitops-nsieve-bits 5.4014+-0.0949 5.3504+-0.0593 ? 5.3838+-0.0737 controlflow-recursive 2.0974+-0.0426 ! 2.2017+-0.0562 ^ 2.0681+-0.0326 might be 1.0142x faster crypto-aes 7.1630+-0.1736 7.1521+-0.1292 ? 7.3224+-0.2781 ? might be 1.0222x slower crypto-md5 2.4639+-0.0589 ? 2.4699+-0.0577 2.4066+-0.0665 might be 1.0238x faster crypto-sha1 2.0894+-0.0543 ? 2.1261+-0.0655 2.0762+-0.0607 date-format-tofte 10.3284+-0.3054 10.0767+-0.2380 ? 10.2680+-0.1504 date-format-xparb 10.1959+-0.2049 10.0255+-0.4225 9.5804+-0.2663 ^ definitely 1.0642x faster math-cordic 6.3103+-0.0606 ? 6.3779+-0.1325 ? 6.4144+-0.0896 ? might be 1.0165x slower math-partial-sums 7.5439+-0.1266 ? 7.5619+-0.1212 ? 7.5857+-0.0965 ? math-spectral-norm 2.3785+-0.0376 2.3741+-0.0454 ? 2.4332+-0.0667 ? might be 1.0230x slower regexp-dna 11.3714+-0.1305 11.1018+-0.1760 ? 11.1192+-0.1735 might be 1.0227x faster string-base64 3.8510+-0.0799 ! 4.0801+-0.1467 3.9845+-0.1926 ? might be 1.0347x slower string-fasta 6.6672+-0.1233 ? 6.8424+-0.1295 ^ 6.6009+-0.0911 might be 1.0101x faster string-tagcloud 11.4471+-0.2604 11.3699+-0.2749 ? 11.5158+-0.2730 ? string-unpack-code 20.4049+-0.2379 20.2750+-0.3279 ^ 19.1545+-0.3629 ^ definitely 1.0653x faster string-validate-input 5.6009+-0.1562 5.3804+-0.0840 ? 5.3993+-0.0788 might be 1.0373x faster <arithmetic> * 6.0914+-0.0231 6.0786+-0.0277 6.0367+-0.0473 might be 1.0091x faster <geometric> 4.8508+-0.0164 ? 4.8652+-0.0272 4.8402+-0.0335 might be 1.0022x faster <harmonic> 3.8184+-0.0232 ? 3.8493+-0.0315 3.8244+-0.0329 ? might be 1.0016x slower TipOfTree NoGetMethod PrimGetBase PrimGetBase v. TipOfTree V8: crypto 71.8362+-0.5343 71.2114+-0.2922 ? 71.4099+-0.4659 deltablue 151.6392+-0.2754 ? 152.3053+-1.4860 152.2227+-1.8172 ? earley-boyer 84.8051+-0.7669 ? 85.7523+-1.3221 85.0645+-0.8124 ? raytrace 57.1427+-0.3630 56.8494+-0.7540 56.5672+-0.2806 might be 1.0102x faster regexp 106.9854+-1.4281 ^ 104.5819+-0.3292 ? 105.8538+-1.2369 might be 1.0107x faster richards 119.7416+-0.5223 119.1687+-1.0246 118.3620+-1.0183 might be 1.0117x faster splay 73.0298+-1.0843 72.9875+-0.8546 ? 73.4269+-1.0974 ? <arithmetic> 95.0257+-0.4054 94.6938+-0.4626 ? 94.7010+-0.2889 might be 1.0034x faster <geometric> * 90.4063+-0.4310 90.0630+-0.4526 ? 90.0676+-0.2052 might be 1.0038x faster <harmonic> 86.1961+-0.4327 85.8578+-0.4659 85.8489+-0.1909 might be 1.0040x faster TipOfTree NoGetMethod PrimGetBase PrimGetBase v. TipOfTree Kraken: ai-astar 494.8361+-3.1003 ! 506.5466+-5.5824 502.8015+-7.0040 ? might be 1.0161x slower audio-beat-detection 191.6589+-1.3843 ? 192.4531+-1.4820 191.2700+-0.6588 audio-dft 272.7450+-3.7373 270.6687+-3.4628 268.3448+-2.1280 might be 1.0164x faster audio-fft 125.8069+-0.7335 ? 126.0233+-0.7829 ? 126.2987+-0.8372 ? audio-oscillator 251.6630+-3.1343 ? 252.7015+-3.5474 250.4863+-3.4858 imaging-darkroom 306.7657+-5.6887 305.4661+-5.0127 303.7196+-4.0188 might be 1.0100x faster imaging-desaturate 216.8601+-0.1732 ! 218.8045+-1.4783 217.2796+-0.6431 ? imaging-gaussian-blur 561.0322+-3.8542 557.4898+-1.4044 ? 557.6545+-1.3581 json-parse-financial 59.1528+-0.3669 ? 59.4811+-0.8032 ? 60.0628+-0.3790 ! definitely 1.0154x slower json-stringify-tinderbox 73.9959+-0.2743 ! 75.9709+-0.6997 75.7469+-0.6275 ! definitely 1.0237x slower stanford-crypto-aes 99.9355+-1.4815 99.4928+-0.4427 ^ 98.0790+-0.2588 ^ definitely 1.0189x faster stanford-crypto-ccm 102.9918+-0.9619 ? 103.3399+-0.9962 102.8367+-1.1936 stanford-crypto-pbkdf2 197.0331+-2.0990 196.9505+-6.7814 191.6590+-1.5363 ^ definitely 1.0280x faster stanford-crypto-sha256-iterative 85.9614+-1.3346 84.7761+-0.2501 84.7181+-0.7271 might be 1.0147x faster <arithmetic> * 217.1742+-0.5951 ? 217.8689+-0.9613 216.4970+-0.5790 might be 1.0031x faster <geometric> 173.9818+-0.3463 ? 174.4767+-0.6808 173.4797+-0.3852 might be 1.0029x faster <harmonic> 140.9202+-0.2713 ? 141.4127+-0.4377 140.9196+-0.3761 might be 1.0000x faster TipOfTree NoGetMethod PrimGetBase PrimGetBase v. TipOfTree All benchmarks: <arithmetic> 82.2127+-0.2002 ? 82.3631+-0.2980 81.9323+-0.1981 might be 1.0034x faster <geometric> 21.7829+-0.0523 ? 21.8246+-0.0761 21.7256+-0.0956 might be 1.0026x faster <harmonic> 6.7241+-0.0399 ? 6.7773+-0.0539 6.7342+-0.0566 ? might be 1.0015x slower TipOfTree NoGetMethod PrimGetBase PrimGetBase v. TipOfTree Geomean of preferred means: <scaled-result> 49.2687+-0.1282 49.2238+-0.1311 49.0079+-0.1674 might be 1.0053x faster

Created attachment 116834 [details] the patch

Comment on attachment 116834 [details] the patch r=gavin

Did some more testing. On three machines, two say it's a 1% speed-up on SunSpider. All agree that it's never a suite-wide slow-down. [pizlo@nitroflex bencher] ./bencher TipOfTree:/Volumes/Data/pizlo/quinary/OpenSource/WebKitBuild/Release/jsc PrimGetBase:/Volumes/Data/pizlo/secondary/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_PrimGetBase_SunSpiderV8Kraken_20111128_1539_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 (r101284) "PrimGetBase" at /Volumes/Data/pizlo/secondary/OpenSource/WebKitBuild/Release/jsc (r101284) 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 PrimGetBase SunSpider: 3d-cube 7.4780+-0.0338 ? 7.5631+-0.0704 ? might be 1.0114x slower 3d-morph 8.3794+-0.0263 ? 8.3862+-0.0493 ? 3d-raytrace 7.6756+-0.0646 7.6697+-0.0663 access-binary-trees 1.6025+-0.0061 ? 1.6184+-0.0187 ? access-fannkuch 7.5638+-0.0144 ? 7.5961+-0.0677 ? access-nbody 4.1779+-0.0059 4.1712+-0.0066 access-nsieve 3.1806+-0.0610 3.1654+-0.0511 bitops-3bit-bits-in-byte 1.2576+-0.0146 1.2559+-0.0167 bitops-bits-in-byte 4.9101+-0.0101 ? 4.9144+-0.0091 ? bitops-bitwise-and 3.2889+-0.0062 ? 3.3027+-0.0281 ? bitops-nsieve-bits 5.6385+-0.0340 ? 5.6838+-0.0307 ? controlflow-recursive 2.2882+-0.0148 ? 2.3068+-0.0246 ? crypto-aes 7.3165+-0.1264 7.1837+-0.0298 might be 1.0185x faster crypto-md5 2.4968+-0.0163 2.4851+-0.0112 crypto-sha1 2.1852+-0.0202 2.1704+-0.0242 date-format-tofte 10.9162+-0.1806 10.7168+-0.0490 might be 1.0186x faster date-format-xparb 10.2837+-0.0786 ? 10.3161+-0.0585 ? math-cordic 7.1304+-0.0171 7.1299+-0.0141 math-partial-sums 10.4567+-0.0166 ? 10.4760+-0.0163 ? math-spectral-norm 2.6032+-0.0138 ? 2.6356+-0.0355 ? might be 1.0124x slower regexp-dna 12.9907+-0.0619 12.9844+-0.0567 string-base64 3.9341+-0.0113 ? 3.9393+-0.0328 ? string-fasta 7.2805+-0.0250 ? 7.3061+-0.0279 ? string-tagcloud 12.6944+-0.2381 ^ 12.3246+-0.0397 ^ definitely 1.0300x faster string-unpack-code 22.5829+-0.2149 ^ 20.8383+-0.0729 ^ definitely 1.0837x faster string-validate-input 5.6676+-0.0639 5.6334+-0.0458 <arithmetic> * 6.7685+-0.0245 ^ 6.6836+-0.0216 ^ definitely 1.0127x faster <geometric> 5.3929+-0.0205 5.3716+-0.0208 might be 1.0040x faster <harmonic> 4.2050+-0.0187 ? 4.2057+-0.0212 ? might be 1.0002x slower TipOfTree PrimGetBase V8: crypto 77.5226+-0.2322 ? 77.9864+-0.9023 ? deltablue 169.7851+-1.7646 169.6010+-0.4459 earley-boyer 105.1151+-0.6689 104.2461+-0.9092 raytrace 63.5504+-0.5358 63.3546+-0.7003 regexp 123.2564+-0.3934 ? 124.0168+-0.4199 ? richards 139.0477+-0.8965 ? 139.6537+-0.9692 ? splay 91.6804+-1.2889 91.2435+-0.5677 <arithmetic> 109.9939+-0.4302 ? 110.0146+-0.3116 ? might be 1.0002x slower <geometric> * 104.7188+-0.3804 104.7077+-0.3762 might be 1.0001x faster <harmonic> 99.6309+-0.3553 99.5902+-0.4561 might be 1.0004x faster TipOfTree PrimGetBase Kraken: ai-astar 810.4444+-13.1403 809.6979+-12.7046 audio-beat-detection 205.1040+-0.8461 ? 205.4453+-1.0497 ? audio-dft 263.3491+-2.0901 263.0357+-2.4775 audio-fft 134.2887+-1.1583 134.0898+-1.0666 audio-oscillator 280.5459+-5.7741 279.1194+-5.6857 imaging-darkroom 336.7036+-6.4946 335.1863+-5.8131 imaging-desaturate 239.1597+-0.4294 ? 239.4964+-0.8094 ? imaging-gaussian-blur 620.8288+-0.3080 620.7478+-0.2371 json-parse-financial 72.8266+-0.3181 ? 73.2295+-0.2992 ? json-stringify-tinderbox 86.2131+-0.4738 86.0411+-0.1989 stanford-crypto-aes 118.8909+-0.6087 ? 119.0576+-0.7136 ? stanford-crypto-ccm 117.4354+-0.8587 ? 117.9361+-0.9807 ? stanford-crypto-pbkdf2 231.5623+-0.5704 231.2513+-1.7567 stanford-crypto-sha256-iterative 97.0698+-0.6541 96.9024+-0.1677 <arithmetic> * 258.1730+-1.0446 257.9455+-1.0910 might be 1.0009x faster <geometric> 199.8580+-0.4996 199.7999+-0.5660 might be 1.0003x faster <harmonic> 161.7211+-0.3350 ? 161.8019+-0.3445 ? might be 1.0005x slower TipOfTree PrimGetBase All benchmarks: <arithmetic> 97.0289+-0.3198 96.9173+-0.3483 might be 1.0012x faster <geometric> 24.6045+-0.0696 24.5480+-0.0758 might be 1.0023x faster <harmonic> 7.4134+-0.0324 ? 7.4145+-0.0368 ? might be 1.0002x slower TipOfTree PrimGetBase Geomean of preferred means: <scaled-result> 56.7725+-0.1377 56.5157+-0.1617 might be 1.0045x faster Sending VM builds to oldmac... Running on oldmac... 376/376 Generating benchmark report at TipOfTree_PrimGetBase_SunSpiderV8Kraken_20111128_1543_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 (r101284) "PrimGetBase" at /Volumes/Data/pizlo/secondary/OpenSource/WebKitBuild/Release/jsc (r101284) 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 PrimGetBase SunSpider: 3d-cube 9.0066+-0.0477 ? 9.0121+-0.0599 ? 3d-morph 10.2638+-0.1520 10.1205+-0.0431 might be 1.0142x faster 3d-raytrace 9.1961+-0.0779 ? 9.2441+-0.0808 ? access-binary-trees 1.9105+-0.0048 1.9052+-0.0077 access-fannkuch 9.1503+-0.0190 ? 9.2546+-0.1284 ? might be 1.0114x slower access-nbody 5.0455+-0.0124 ? 5.0459+-0.0167 ? access-nsieve 3.7153+-0.0082 ? 3.7156+-0.0059 ? bitops-3bit-bits-in-byte 1.4890+-0.0093 1.4869+-0.0051 bitops-bits-in-byte 5.9610+-0.0352 5.9280+-0.0149 bitops-bitwise-and 3.9673+-0.0049 ? 3.9674+-0.0049 ? bitops-nsieve-bits 6.9107+-0.1347 6.8730+-0.0693 controlflow-recursive 2.7627+-0.0211 ? 2.7736+-0.0343 ? crypto-aes 8.7018+-0.0575 8.6662+-0.0710 crypto-md5 2.9923+-0.0209 2.9710+-0.0133 crypto-sha1 2.6121+-0.0267 2.5949+-0.0201 date-format-tofte 13.1067+-0.0938 ? 13.1965+-0.1883 ? date-format-xparb 12.7721+-0.1489 ? 12.7738+-0.1099 ? math-cordic 8.6052+-0.0188 ? 8.6407+-0.0344 ? math-partial-sums 12.6441+-0.0302 12.6343+-0.0174 math-spectral-norm 3.1234+-0.0074 ? 3.1282+-0.0088 ? regexp-dna 15.6127+-0.1023 ? 15.7199+-0.0777 ? string-base64 4.7357+-0.0323 ? 4.7482+-0.0351 ? string-fasta 8.8043+-0.0128 ? 8.8276+-0.0135 ? string-tagcloud 15.0680+-0.1302 ^ 14.8620+-0.0553 ^ definitely 1.0139x faster string-unpack-code 27.7005+-0.1855 ^ 25.7607+-0.0791 ^ definitely 1.0753x faster string-validate-input 6.8233+-0.0647 6.7523+-0.0623 might be 1.0105x faster <arithmetic> * 8.1800+-0.0240 ^ 8.1001+-0.0306 ^ definitely 1.0099x faster <geometric> 6.4953+-0.0198 6.4708+-0.0228 might be 1.0038x faster <harmonic> 5.0431+-0.0169 5.0333+-0.0162 might be 1.0019x faster TipOfTree PrimGetBase V8: crypto 93.6356+-0.1878 93.5075+-0.3641 deltablue 205.0982+-2.4375 ? 206.2358+-1.6268 ? earley-boyer 125.9509+-0.8903 ? 126.0171+-0.8782 ? raytrace 76.0511+-0.5249 75.8008+-0.6860 regexp 147.8428+-0.3353 ? 148.2622+-0.4273 ? richards 168.5417+-1.7057 167.7990+-0.8774 splay 108.0922+-1.1576 ? 108.5410+-1.7636 ? <arithmetic> 132.1732+-0.5308 ? 132.3091+-0.4720 ? might be 1.0010x slower <geometric> * 125.6786+-0.4562 ? 125.7489+-0.4773 ? might be 1.0006x slower <harmonic> 119.4567+-0.4400 ? 119.4615+-0.5149 ? might be 1.0000x slower TipOfTree PrimGetBase Kraken: ai-astar 897.5581+-0.4232 ? 897.7406+-0.4645 ? audio-beat-detection 249.8704+-1.1648 249.5691+-0.9221 audio-dft 315.1016+-2.9135 ? 316.5375+-5.3376 ? audio-fft 162.8627+-1.1459 161.9474+-0.1085 audio-oscillator 343.4602+-6.8557 340.6483+-7.0170 imaging-darkroom 405.4188+-6.5577 ? 410.1651+-7.7088 ? might be 1.0117x slower imaging-desaturate 288.1475+-0.0680 ? 288.1888+-0.0936 ? imaging-gaussian-blur 750.9272+-0.2813 ? 753.0340+-3.8911 ? json-parse-financial 88.3435+-0.2050 ? 89.3216+-1.0965 ? might be 1.0111x slower json-stringify-tinderbox 103.3917+-0.2686 ! 104.4470+-0.5087 ! definitely 1.0102x slower stanford-crypto-aes 143.2825+-0.3786 143.0949+-0.5344 stanford-crypto-ccm 140.4347+-0.9444 ? 140.8037+-1.1101 ? stanford-crypto-pbkdf2 280.6541+-2.3518 ? 282.4666+-2.4946 ? stanford-crypto-sha256-iterative 117.7556+-0.2287 117.2969+-0.2862 <arithmetic> * 306.2292+-0.6652 ? 306.8044+-1.0606 ? might be 1.0019x slower <geometric> 240.0051+-0.5082 ? 240.5002+-0.7923 ? might be 1.0021x slower <harmonic> 195.0847+-0.3216 ? 195.6304+-0.6321 ? might be 1.0028x slower TipOfTree PrimGetBase All benchmarks: <arithmetic> 115.4277+-0.2161 ? 115.5751+-0.3661 ? might be 1.0013x slower <geometric> 29.5924+-0.0666 29.5511+-0.0851 might be 1.0014x faster <harmonic> 8.8915+-0.0293 8.8751+-0.0282 might be 1.0018x faster TipOfTree PrimGetBase Geomean of preferred means: <scaled-result> 68.0276+-0.1328 67.8604+-0.1874 might be 1.0025x faster Running locally... 376/376 Generating benchmark report at TipOfTree_PrimGetBase_SunSpiderV8Kraken_20111128_1545_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 (r101284) "PrimGetBase" at /Volumes/Data/pizlo/secondary/OpenSource/WebKitBuild/Release/jsc (r101284) 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 PrimGetBase SunSpider: 3d-cube 7.1575+-0.2354 7.0259+-0.1505 might be 1.0187x faster 3d-morph 7.7520+-0.1157 7.6741+-0.1134 might be 1.0102x faster 3d-raytrace 7.2676+-0.1825 7.2460+-0.1797 access-binary-trees 1.4984+-0.0355 ? 1.5297+-0.0242 ? might be 1.0209x slower access-fannkuch 6.4619+-0.0754 6.3424+-0.0660 might be 1.0188x faster access-nbody 3.5086+-0.1024 ? 3.5466+-0.0891 ? might be 1.0108x slower access-nsieve 2.5459+-0.0602 ? 2.6406+-0.1078 ? might be 1.0372x slower bitops-3bit-bits-in-byte 1.2702+-0.0136 1.2641+-0.0285 bitops-bits-in-byte 2.4118+-0.0716 2.3517+-0.0529 might be 1.0256x faster bitops-bitwise-and 3.3894+-0.0471 ? 3.4552+-0.0794 ? might be 1.0194x slower bitops-nsieve-bits 5.4325+-0.0844 5.3813+-0.0660 controlflow-recursive 2.0755+-0.0348 ? 2.1106+-0.0465 ? might be 1.0169x slower crypto-aes 7.0370+-0.1188 ? 7.1524+-0.1332 ? might be 1.0164x slower crypto-md5 2.4499+-0.1045 2.3751+-0.0625 might be 1.0315x faster crypto-sha1 2.1846+-0.0960 2.0737+-0.0642 might be 1.0534x faster date-format-tofte 10.4930+-0.2104 10.3721+-0.2436 might be 1.0117x faster date-format-xparb 9.9807+-0.1289 9.9722+-0.1931 math-cordic 6.4187+-0.1320 ? 6.6768+-0.1320 ? might be 1.0402x slower math-partial-sums 7.7358+-0.2155 7.5927+-0.1210 might be 1.0189x faster math-spectral-norm 2.3983+-0.0515 2.3510+-0.0458 might be 1.0201x faster regexp-dna 11.0343+-0.1563 ? 11.3721+-0.2315 ? might be 1.0306x slower string-base64 3.9461+-0.0869 3.8731+-0.1100 might be 1.0188x faster string-fasta 6.8034+-0.1689 6.7259+-0.1369 might be 1.0115x faster string-tagcloud 11.2997+-0.1995 ? 11.3845+-0.3282 ? string-unpack-code 20.3005+-0.1728 ^ 19.2393+-0.3765 ^ definitely 1.0552x faster string-validate-input 5.5259+-0.1239 ? 5.5339+-0.2025 ? <arithmetic> * 6.0915+-0.0278 6.0486+-0.0246 might be 1.0071x faster <geometric> 4.8592+-0.0148 4.8389+-0.0195 might be 1.0042x faster <harmonic> 3.8274+-0.0250 3.8133+-0.0219 might be 1.0037x faster TipOfTree PrimGetBase V8: crypto 71.8634+-0.6151 ? 71.9204+-0.4422 ? deltablue 152.7037+-1.6896 150.7131+-1.2730 might be 1.0132x faster earley-boyer 86.2757+-1.0717 85.8455+-1.0990 raytrace 58.1938+-0.8018 58.1324+-0.7145 regexp 105.8389+-1.5551 105.7282+-0.5079 richards 118.7512+-0.4150 118.6073+-0.3495 splay 74.8425+-0.9998 74.6712+-0.7341 <arithmetic> 95.4956+-0.3730 95.0883+-0.2553 might be 1.0043x faster <geometric> * 91.0251+-0.2901 90.7330+-0.2765 might be 1.0032x faster <harmonic> 86.9640+-0.2730 86.7571+-0.3269 might be 1.0024x faster TipOfTree PrimGetBase Kraken: ai-astar 499.1011+-3.2941 ? 507.9335+-6.0009 ? might be 1.0177x slower audio-beat-detection 194.4367+-1.8181 192.0391+-0.6806 might be 1.0125x faster audio-dft 274.8032+-2.4003 274.7899+-2.5654 audio-fft 127.4657+-1.2184 126.9612+-0.8764 audio-oscillator 253.4097+-3.7310 253.1290+-3.5523 imaging-darkroom 308.0198+-4.0310 307.1233+-4.2552 imaging-desaturate 220.3319+-1.4803 219.7745+-1.8169 imaging-gaussian-blur 562.6962+-2.3110 ? 564.9762+-5.5238 ? json-parse-financial 58.7835+-0.1501 ! 59.9569+-0.5711 ! definitely 1.0200x slower json-stringify-tinderbox 74.6116+-0.2465 ? 74.7934+-0.3159 ? stanford-crypto-aes 100.2818+-0.9061 ? 100.2845+-0.3721 ? stanford-crypto-ccm 103.2332+-0.7825 102.9859+-0.7070 stanford-crypto-pbkdf2 193.2819+-2.3420 192.4260+-0.5078 stanford-crypto-sha256-iterative 84.7929+-0.2269 ? 85.2704+-0.3352 ? <arithmetic> * 218.2321+-0.5294 ? 218.7460+-0.6582 ? might be 1.0024x slower <geometric> 174.5910+-0.4056 ? 174.8366+-0.4773 ? might be 1.0014x slower <harmonic> 141.1413+-0.2883 ? 141.5817+-0.4700 ? might be 1.0031x slower TipOfTree PrimGetBase All benchmarks: <arithmetic> 82.5978+-0.1791 ? 82.6665+-0.2077 ? might be 1.0008x slower <geometric> 21.8487+-0.0447 21.7968+-0.0589 might be 1.0024x faster <harmonic> 6.7404+-0.0431 6.7164+-0.0379 might be 1.0036x faster TipOfTree PrimGetBase Geomean of preferred means: <scaled-result> 49.4611+-0.0927 49.3305+-0.0818 might be 1.0026x faster [pizlo@nitroflex bencher]

Landed in http://trac.webkit.org/changeset/101298

Comment on attachment 116834 [details] the patch Clearing flags.