Bug 122014

Created attachment 212810 [details] Patch

Benchmark report for SunSpider, LongSpider, V8Spider, Octane, Kraken, and JSRegress on foie (MacBookPro10,1). VMs tested: "TipOfTree" at /Users/akling/Source/Safari/Reference-OpenSource/WebKitBuild/Release/jsc "MyChanges" at /Users/akling/Source/Safari/OpenSource/WebKitBuild/Release/jsc Collected 4 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 MyChanges SunSpider: 3d-cube 9.3472+-13.9434 5.0253+-0.3243 might be 1.8600x faster 3d-morph 5.3866+-0.1576 5.3749+-0.3220 3d-raytrace 10.6525+-12.2035 8.3285+-7.1312 might be 1.2790x faster access-binary-trees 1.3143+-0.0685 ? 2.8171+-3.8745 ? might be 2.1435x slower access-fannkuch 5.0945+-0.3320 ? 5.1724+-0.6533 ? might be 1.0153x slower access-nbody 3.4172+-2.3825 ? 5.7205+-10.1145 ? might be 1.6740x slower access-nsieve 4.7425+-4.6733 3.8027+-2.1038 might be 1.2471x faster bitops-3bit-bits-in-byte 1.3922+-0.0809 ? 2.8517+-4.6393 ? might be 2.0484x slower bitops-bits-in-byte 3.3973+-4.8202 2.9750+-2.1531 might be 1.1419x faster bitops-bitwise-and 1.9396+-0.0454 ? 2.0618+-0.4735 ? might be 1.0630x slower bitops-nsieve-bits 3.0155+-0.1677 ? 3.1001+-0.3382 ? might be 1.0281x slower controlflow-recursive 1.8907+-0.0721 ? 1.9141+-0.0395 ? might be 1.0123x slower crypto-aes 3.9888+-0.7400 3.7175+-0.1988 might be 1.0730x faster crypto-md5 8.4955+-15.4017 2.3129+-0.1277 might be 3.6730x faster crypto-sha1 2.0855+-0.0845 2.0673+-0.0959 date-format-tofte 7.5251+-0.6961 ? 8.5555+-3.1874 ? might be 1.1369x slower date-format-xparb 5.2574+-0.0244 5.2260+-0.3625 math-cordic 3.7679+-2.8712 2.8483+-0.2966 might be 1.3229x faster math-partial-sums 5.4500+-0.3130 ? 5.5041+-0.4070 ? math-spectral-norm 1.7902+-0.2745 1.7181+-0.1362 might be 1.0420x faster regexp-dna 8.5304+-2.2514 ? 9.2183+-2.8149 ? might be 1.0806x slower string-base64 3.5345+-0.0460 ? 4.6428+-3.5985 ? might be 1.3136x slower string-fasta 10.9028+-0.3204 ? 11.4647+-0.5432 ? might be 1.0515x slower string-tagcloud 10.5803+-1.0605 ? 10.6290+-2.1171 ? string-unpack-code 32.4233+-34.4413 28.7372+-19.2639 might be 1.1283x faster string-validate-input 5.8246+-4.8646 4.2230+-0.2726 might be 1.3792x faster <arithmetic> * 6.2210+-1.4682 5.7696+-1.4429 might be 1.0782x faster <geometric> 4.3591+-0.2211 4.3026+-0.5907 might be 1.0131x faster <harmonic> 3.3637+-0.1450 ? 3.4517+-0.3783 ? might be 1.0262x slower TipOfTree MyChanges LongSpider: 3d-cube 1718.9222+-1291.1681 1303.6224+-56.6959 might be 1.3186x faster 3d-morph 877.0229+-2.4270 ? 934.5154+-164.0631 ? might be 1.0656x slower 3d-raytrace 943.1622+-41.4520 942.2931+-6.0612 access-binary-trees 1361.6880+-23.7187 ? 1812.7375+-1459.7898 ? might be 1.3312x slower access-fannkuch 657.0110+-484.7672 403.7645+-29.4343 might be 1.6272x faster access-nbody 833.6365+-6.0221 831.8196+-4.7045 access-nsieve 1000.1458+-6.7917 ? 1281.4214+-912.9103 ? might be 1.2812x slower bitops-3bit-bits-in-byte 98.3940+-2.2356 ? 112.6668+-38.7037 ? might be 1.1451x slower bitops-bits-in-byte 115.7230+-4.0457 114.6715+-7.7181 bitops-nsieve-bits 702.5143+-3.5885 ? 1149.9946+-1409.9035 ? might be 1.6370x slower controlflow-recursive 784.8937+-5.9199 782.7590+-5.2400 crypto-aes 1045.0414+-11.1084 ? 1054.5512+-20.8716 ? crypto-md5 802.3290+-4.8630 ? 808.5880+-7.1292 ? crypto-sha1 1077.6954+-6.1834 1075.3288+-4.8829 date-format-tofte 1101.0051+-1243.3300 722.0864+-21.2222 might be 1.5248x faster date-format-xparb 908.6360+-53.5123 876.1206+-34.9716 might be 1.0371x faster math-cordic 1513.3845+-1362.2803 1083.4738+-4.7176 might be 1.3968x faster math-partial-sums 670.6040+-4.4702 ? 674.3058+-4.6569 ? math-spectral-norm 917.5245+-6.1833 917.4315+-3.4888 string-base64 333.4020+-3.2205 ? 433.0997+-307.6217 ? might be 1.2990x slower string-fasta 1059.4246+-36.7109 ? 1493.6397+-1397.0020 ? might be 1.4099x slower string-tagcloud 337.6733+-341.0912 229.2418+-5.9592 might be 1.4730x faster <arithmetic> 857.2652+-86.4051 ? 865.3697+-146.0628 ? might be 1.0095x slower <geometric> * 700.7855+-34.8488 698.6368+-62.9325 might be 1.0031x faster <harmonic> 484.7058+-33.3464 ? 486.1853+-23.7952 ? might be 1.0031x slower TipOfTree MyChanges V8Spider: crypto 50.4377+-1.4330 ? 50.5107+-1.7244 ? deltablue 68.5715+-2.7289 ? 70.8999+-2.0268 ? might be 1.0340x slower earley-boyer 43.3261+-1.7276 42.5125+-1.6819 might be 1.0191x faster raytrace 27.1795+-1.0449 27.1775+-0.6758 regexp 65.4214+-4.7825 64.5587+-1.2711 might be 1.0134x faster richards 71.3416+-1.9894 71.1442+-2.7034 splay 65.0292+-95.8248 31.6002+-1.0722 might be 2.0579x faster <arithmetic> 55.9010+-14.6887 51.2005+-0.3995 might be 1.0918x faster <geometric> * 51.7676+-10.2987 48.1493+-0.5095 might be 1.0751x faster <harmonic> 47.9339+-7.2676 45.0307+-0.5963 might be 1.0645x faster TipOfTree MyChanges Octane and V8v7: encrypt 0.27758+-0.00838 0.27561+-0.00610 decrypt 5.02711+-0.14654 ? 7.54329+-8.02926 ? might be 1.5005x slower deltablue x2 0.61479+-0.68479 0.39393+-0.00400 might be 1.5607x faster earley 0.54411+-0.02780 0.53142+-0.01043 might be 1.0239x faster boyer 6.77797+-0.34854 6.63587+-0.06046 might be 1.0214x faster raytrace x2 2.96901+-0.06644 ? 2.98256+-0.05848 ? regexp x2 20.30325+-0.29655 ? 20.54989+-0.46787 ? might be 1.0121x slower richards x2 0.18407+-0.00159 ? 0.18588+-0.00119 ? splay x2 0.44100+-0.01726 ? 0.81572+-1.18505 ? might be 1.8497x slower navier-stokes x2 9.46129+-7.41828 7.11676+-0.04775 might be 1.3294x faster closure 0.41064+-0.40226 0.28370+-0.00890 might be 1.4475x faster jquery 3.85331+-0.01197 ? 3.86839+-0.03103 ? gbemu x2 63.36653+-1.08348 63.01473+-0.51193 mandreel x2 114.02652+-0.40925 ? 168.83020+-174.68996 ? might be 1.4806x slower pdfjs x2 61.16455+-0.37934 ? 96.10783+-113.68387 ? might be 1.5713x slower box2d x2 22.46511+-0.44411 ? 22.52301+-0.73461 ? V8v7: <arithmetic> 5.03585+-0.92401 4.94223+-0.47828 might be 1.0189x faster <geometric> * 1.64165+-0.19238 ? 1.64290+-0.23487 ? might be 1.0008x slower <harmonic> 0.60903+-0.06556 ? 0.60911+-0.06745 ? might be 1.0001x slower Octane including V8v7: <arithmetic> 23.34165+-0.60849 ? 30.16074+-13.30415 ? might be 1.2921x slower <geometric> * 4.74740+-0.42376 ? 4.91581+-0.73057 ? might be 1.0355x slower <harmonic> 0.87636+-0.08046 0.86008+-0.08057 might be 1.0189x faster TipOfTree MyChanges Kraken: ai-astar 244.097+-3.208 ? 489.589+-456.833 ? might be 2.0057x slower audio-beat-detection 150.635+-2.835 150.508+-2.013 audio-dft 222.827+-6.181 ? 225.345+-9.066 ? might be 1.0113x slower audio-fft 89.509+-3.618 87.530+-1.608 might be 1.0226x faster audio-oscillator 169.696+-13.359 ? 234.385+-214.661 ? might be 1.3812x slower imaging-darkroom 179.706+-3.456 ? 180.611+-3.484 ? imaging-desaturate 90.330+-1.683 89.292+-0.793 might be 1.0116x faster imaging-gaussian-blur 240.174+-5.963 ? 455.966+-400.032 ? might be 1.8985x slower json-parse-financial 65.529+-53.808 47.451+-1.202 might be 1.3810x faster json-stringify-tinderbox 89.500+-66.829 62.817+-2.271 might be 1.4248x faster stanford-crypto-aes 56.721+-2.360 ? 56.985+-4.022 ? stanford-crypto-ccm 65.617+-0.897 ? 67.065+-2.045 ? might be 1.0221x slower stanford-crypto-pbkdf2 159.772+-4.764 ? 161.490+-4.458 ? might be 1.0108x slower stanford-crypto-sha256-iterative 76.896+-52.282 59.301+-2.808 might be 1.2967x faster <arithmetic> * 135.786+-8.372 ? 169.167+-43.835 ? might be 1.2458x slower <geometric> 118.495+-11.044 ? 123.495+-13.501 ? might be 1.0422x slower <harmonic> 102.699+-12.077 98.316+-3.837 might be 1.0446x faster TipOfTree MyChanges JSRegress: adapt-to-double-divide 20.6990+-6.6817 19.8498+-3.2009 might be 1.0428x faster aliased-arguments-getbyval 0.6405+-0.0375 ? 0.6802+-0.1647 ? might be 1.0620x slower allocate-big-object 1.9130+-0.4964 ? 2.5060+-2.0144 ? might be 1.3100x slower arity-mismatch-inlining 0.9487+-0.6067 ? 3.1493+-8.0617 ? might be 3.3195x slower array-access-polymorphic-structure 4.1438+-0.2412 4.0826+-0.2839 might be 1.0150x faster array-nonarray-polymorhpic-access 40.9915+-1.9808 40.4705+-1.9541 might be 1.0129x faster array-with-double-add 3.7920+-0.0697 ? 5.5560+-5.7496 ? might be 1.4652x slower array-with-double-increment 3.8832+-2.6847 3.0014+-0.0420 might be 1.2938x faster array-with-double-mul-add 4.1533+-0.2362 4.1249+-0.2831 array-with-double-sum 3.9352+-0.1448 ? 3.9738+-0.0911 ? array-with-int32-add-sub 6.7586+-1.9335 6.0997+-0.2561 might be 1.1080x faster array-with-int32-or-double-sum 4.0321+-0.0726 3.9758+-0.0561 might be 1.0142x faster ArrayBuffer-DataView-alloc-large-long-lived 98.2664+-77.0915 71.5214+-2.7551 might be 1.3739x faster ArrayBuffer-DataView-alloc-long-lived 22.3811+-3.5265 20.7937+-1.0048 might be 1.0763x faster ArrayBuffer-Int32Array-byteOffset 5.5186+-0.7145 ? 5.6244+-1.6797 ? might be 1.0192x slower ArrayBuffer-Int8Array-alloc-huge-long-lived 139.2838+-0.8895 ? 178.4119+-120.5442 ? might be 1.2809x slower ArrayBuffer-Int8Array-alloc-large-long-lived-fragmented 102.2684+-4.7584 102.2105+-3.8869 ArrayBuffer-Int8Array-alloc-large-long-lived 70.7495+-2.1804 ? 73.6796+-4.1036 ? might be 1.0414x slower ArrayBuffer-Int8Array-alloc-long-lived-buffer 45.5273+-49.4189 31.7909+-3.3937 might be 1.4321x faster ArrayBuffer-Int8Array-alloc-long-lived 20.0408+-1.5862 ? 20.5677+-2.0794 ? might be 1.0263x slower ArrayBuffer-Int8Array-alloc 17.4260+-1.2891 ? 19.4958+-2.2580 ? might be 1.1188x slower basic-set 15.3508+-1.5422 ? 21.5428+-16.4404 ? might be 1.4034x slower big-int-mul 4.5758+-2.6048 3.8167+-0.6387 might be 1.1989x faster boolean-test 2.9072+-0.2158 ? 3.5596+-1.3283 ? might be 1.2244x slower branch-fold 3.5736+-0.2011 3.5730+-0.0754 cast-int-to-double 10.7380+-2.5064 10.0126+-0.5759 might be 1.0725x faster cell-argument 10.5763+-0.8371 ? 13.3927+-6.4338 ? might be 1.2663x slower cfg-simplify 2.7135+-0.0879 ? 3.3182+-1.2209 ? might be 1.2229x slower cmpeq-obj-to-obj-other 10.9337+-7.9571 8.9835+-2.7179 might be 1.2171x faster constant-test 4.5582+-0.1686 ? 7.6228+-9.6140 ? might be 1.6723x slower DataView-custom-properties 85.7265+-2.6780 ? 125.2892+-122.1852 ? might be 1.4615x slower delay-tear-off-arguments-strictmode 5.9188+-11.3676 2.3190+-0.0799 might be 2.5523x faster destructuring-arguments-length 110.3345+-3.1964 ? 169.2442+-173.5326 ? might be 1.5339x slower destructuring-arguments 10.3676+-8.1725 4.8420+-0.2895 might be 2.1412x faster destructuring-swap 4.5865+-0.0884 ? 6.9927+-4.8060 ? might be 1.5246x slower direct-arguments-getbyval 0.6429+-0.3059 0.5512+-0.0477 might be 1.1664x faster double-pollution-getbyval 9.8776+-2.5217 ? 10.5212+-2.2720 ? might be 1.0652x slower double-pollution-putbyoffset 3.7220+-0.0936 ? 7.6749+-12.2475 ? might be 2.0620x slower empty-string-plus-int 8.1100+-2.1315 ? 10.3573+-7.0587 ? might be 1.2771x slower emscripten-cube2hash 37.1764+-1.6473 36.0392+-3.1891 might be 1.0316x faster emscripten-memops 6984.0421+-4733.7433 ? 7041.8683+-4909.3910 ? external-arguments-getbyval 1.3274+-0.0935 ? 1.3470+-0.3308 ? might be 1.0148x slower external-arguments-putbyval 3.5383+-2.3706 2.1492+-0.2120 might be 1.6463x faster Float32Array-matrix-mult 4.3040+-0.5986 ? 6.0512+-6.3572 ? might be 1.4059x slower Float32Array-to-Float64Array-set 78.7322+-71.8726 55.9270+-1.4655 might be 1.4078x faster Float64Array-alloc-long-lived 74.5980+-0.8148 ? 74.7700+-3.8579 ? Float64Array-to-Int16Array-set 78.4774+-2.2410 75.6718+-2.3580 might be 1.0371x faster fold-double-to-int 15.9655+-0.1866 ? 21.5637+-18.1420 ? might be 1.3506x slower function-dot-apply 2.0460+-0.0648 2.0425+-0.0401 function-test 3.3615+-0.4212 3.2417+-0.2628 might be 1.0369x faster get-by-id-chain-from-try-block 4.4647+-0.5806 4.2341+-0.1009 might be 1.0545x faster get-by-id-proto-or-self 15.9171+-3.8344 15.0781+-1.2572 might be 1.0556x faster get-by-id-self-or-proto 22.7107+-13.8571 16.5837+-2.3266 might be 1.3695x faster get_callee_monomorphic 3.0363+-0.9587 ? 3.2577+-0.6575 ? might be 1.0729x slower get_callee_polymorphic 3.1432+-0.4214 3.0914+-0.2885 might be 1.0168x faster HashMap-put-get-iterate-keys 70.9123+-47.6336 29.9738+-2.0086 might be 2.3658x faster HashMap-put-get-iterate 38.6280+-6.6072 ? 53.2155+-48.7097 ? might be 1.3776x slower HashMap-string-put-get-iterate 36.4945+-3.8431 ? 53.1380+-61.8361 ? might be 1.4561x slower imul-double-only 17.6739+-13.6100 11.2939+-0.1458 might be 1.5649x faster imul-int-only 18.0653+-7.5970 10.8326+-0.3971 might be 1.6677x faster imul-mixed 14.5227+-0.3106 13.9525+-0.4707 might be 1.0409x faster in-four-cases 18.6220+-2.4096 ? 18.9487+-2.6916 ? might be 1.0175x slower in-one-case-false 8.2654+-0.2971 ? 13.9994+-10.9472 ? might be 1.6937x slower in-one-case-true 8.5864+-0.6562 8.4122+-0.7520 might be 1.0207x faster in-two-cases 12.2725+-8.5231 9.4532+-2.3723 might be 1.2982x faster indexed-properties-in-objects 2.7762+-0.2299 2.6912+-0.0561 might be 1.0316x faster inline-arguments-access 1.0420+-0.1842 ? 1.2156+-0.7727 ? might be 1.1666x slower inline-arguments-local-escape 16.6642+-6.3087 ? 19.0667+-13.9657 ? might be 1.1442x slower inline-get-scoped-var 4.5544+-0.1566 ? 4.6655+-0.2157 ? might be 1.0244x slower inlined-put-by-id-transition 9.1766+-1.2485 9.1713+-0.7292 int-or-other-abs-then-get-by-val 10.5945+-14.2057 6.1380+-0.2961 might be 1.7261x faster int-or-other-abs-zero-then-get-by-val 30.2382+-21.9327 29.3932+-24.2506 might be 1.0287x faster int-or-other-add-then-get-by-val 8.4853+-2.3445 ? 16.5905+-18.8886 ? might be 1.9552x slower int-or-other-add 6.7538+-0.1138 ? 6.9496+-0.3808 ? might be 1.0290x slower int-or-other-div-then-get-by-val 8.9090+-12.5192 5.2907+-1.5357 might be 1.6839x faster int-or-other-max-then-get-by-val 7.5092+-5.3628 6.1818+-1.6597 might be 1.2147x faster int-or-other-min-then-get-by-val 5.4529+-0.1074 ? 7.7537+-6.8144 ? might be 1.4219x slower int-or-other-mod-then-get-by-val 5.6345+-4.0849 4.2989+-0.1770 might be 1.3107x faster int-or-other-mul-then-get-by-val 8.3640+-9.6010 4.7368+-0.1482 might be 1.7657x faster int-or-other-neg-then-get-by-val 5.5032+-0.0683 ? 7.9935+-7.6223 ? might be 1.4525x slower int-or-other-neg-zero-then-get-by-val 21.5283+-1.0418 ? 28.8945+-19.2080 ? might be 1.3422x slower int-or-other-sub-then-get-by-val 12.4968+-13.9151 7.8954+-0.2406 might be 1.5828x faster int-or-other-sub 5.1992+-0.5756 ? 5.2021+-0.5559 ? int-overflow-local 4.3560+-0.3725 ? 4.6545+-1.4107 ? might be 1.0685x slower Int16Array-alloc-long-lived 49.5058+-3.4238 ? 80.0856+-104.6722 ? might be 1.6177x slower Int16Array-bubble-sort-with-byteLength 24.1077+-1.1071 ? 25.0287+-2.0319 ? might be 1.0382x slower Int16Array-bubble-sort 31.6137+-14.6571 25.2213+-0.8612 might be 1.2535x faster Int16Array-load-int-mul 1.7518+-0.8342 ? 1.7592+-0.8171 ? Int16Array-to-Int32Array-set 59.5715+-5.5618 57.8818+-3.3279 might be 1.0292x faster Int32Array-alloc-huge-long-lived 222.6834+-23.8496 216.8101+-4.9194 might be 1.0271x faster Int32Array-alloc-huge 392.1613+-587.4069 206.9984+-3.6786 might be 1.8945x faster Int32Array-alloc-large-long-lived 600.3478+-11.6471 ? 603.7789+-13.9798 ? Int32Array-alloc-large 30.9295+-2.7164 29.6756+-3.1107 might be 1.0423x faster Int32Array-alloc-long-lived 57.0228+-3.5529 ? 57.5266+-3.7155 ? Int32Array-alloc 2.6285+-0.0922 ? 2.9799+-1.0860 ? might be 1.1337x slower Int32Array-Int8Array-view-alloc 10.0015+-1.5147 ? 10.1800+-0.5226 ? might be 1.0178x slower Int8Array-alloc-long-lived 46.8987+-2.6510 46.8915+-3.5728 Int8Array-load-with-byteLength 3.6740+-1.8352 3.1356+-0.1421 might be 1.1717x faster Int8Array-load 3.1700+-0.2780 ? 3.8434+-2.2041 ? might be 1.2124x slower integer-divide 10.1166+-0.5958 ? 11.0001+-2.6374 ? might be 1.0873x slower integer-modulo 1.2761+-0.0358 ? 1.3367+-0.0482 ? might be 1.0475x slower large-int-captured 5.3793+-0.3181 ? 5.5410+-1.1878 ? might be 1.0301x slower large-int-neg 16.4603+-0.4444 16.3383+-0.4610 large-int 19.1171+-13.6208 14.7272+-0.1337 might be 1.2981x faster lots-of-fields 7.9899+-0.8353 7.9304+-0.7880 make-indexed-storage 3.5645+-3.3022 ? 5.6053+-9.4812 ? might be 1.5726x slower make-rope-cse 3.9715+-0.5533 ? 4.1558+-0.9261 ? might be 1.0464x slower marsaglia-larger-ints 78.4684+-1.5939 ? 94.1602+-39.8757 ? might be 1.2000x slower marsaglia-osr-entry 34.4904+-1.0423 34.2373+-0.7497 marsaglia 333.1118+-1.9098 ? 504.9273+-317.4763 ? might be 1.5158x slower method-on-number 18.2707+-2.8485 17.0810+-0.5708 might be 1.0697x faster negative-zero-divide 0.3568+-0.3219 ? 0.3785+-0.4007 ? might be 1.0609x slower negative-zero-modulo 0.2336+-0.0100 ? 0.2383+-0.0205 ? might be 1.0201x slower negative-zero-negate 0.3264+-0.3210 0.3117+-0.2457 might be 1.0472x faster nested-function-parsing-random 355.9452+-362.3606 243.5948+-6.6436 might be 1.4612x faster nested-function-parsing 27.7247+-2.9321 27.0156+-0.7518 might be 1.0263x faster new-array-buffer-dead 2.7410+-0.1190 ? 3.1140+-0.7075 ? might be 1.1361x slower new-array-buffer-push 9.5637+-4.0981 8.2036+-2.9520 might be 1.1658x faster new-array-dead 23.2212+-2.9302 22.3355+-0.4540 might be 1.0397x faster new-array-push 5.1870+-0.7800 ? 5.8774+-3.8359 ? might be 1.1331x slower number-test 2.8278+-0.0887 2.7900+-0.1051 might be 1.0135x faster object-closure-call 10.0200+-1.3774 ? 14.3652+-13.0049 ? might be 1.4337x slower object-test 3.0562+-0.0625 ? 3.1326+-0.1626 ? might be 1.0250x slower poly-stricteq 64.9275+-1.4593 ? 66.2157+-3.0006 ? might be 1.0198x slower polymorphic-structure 15.8618+-3.1988 ? 16.1755+-2.3392 ? might be 1.0198x slower polyvariant-monomorphic-get-by-id 7.4929+-0.2289 ? 10.6060+-8.5738 ? might be 1.4155x slower put-by-val-large-index-blank-indexing-type 7.3464+-1.5102 7.0317+-0.9743 might be 1.0448x faster rare-osr-exit-on-local 15.7310+-3.5781 15.1074+-2.5239 might be 1.0413x faster register-pressure-from-osr 29.0297+-19.7953 21.5684+-0.7160 might be 1.3459x faster simple-activation-demo 25.7654+-2.7956 ? 27.6981+-2.3257 ? might be 1.0750x slower slow-array-profile-convergence 2.9145+-0.1348 ? 3.8748+-3.5891 ? might be 1.3295x slower slow-convergence 4.6204+-7.4211 2.3990+-0.2590 might be 1.9259x faster sparse-conditional 0.8798+-0.0353 ? 0.8995+-0.0691 ? might be 1.0225x slower splice-to-remove 44.8063+-1.7516 ? 46.5065+-2.5414 ? might be 1.0379x slower string-concat-object 3.1312+-2.5544 2.1207+-0.2662 might be 1.4765x faster string-concat-pair-object 2.2404+-0.7643 ? 2.3427+-0.9175 ? might be 1.0457x slower string-concat-pair-simple 18.7153+-21.0709 12.0136+-2.6439 might be 1.5578x faster string-concat-simple 11.4955+-0.8148 ? 11.8415+-1.8675 ? might be 1.0301x slower string-cons-repeat 7.9656+-2.0828 ? 8.7386+-1.7146 ? might be 1.0970x slower string-cons-tower 7.2178+-0.1277 ? 7.8403+-1.1001 ? might be 1.0862x slower string-equality 41.5989+-32.6261 36.7289+-21.1232 might be 1.1326x faster string-get-by-val-big-char 10.3227+-3.0223 8.6458+-0.1381 might be 1.1940x faster string-get-by-val-out-of-bounds-insane 3.5010+-0.1071 ^ 3.2801+-0.0877 ^ definitely 1.0674x faster string-get-by-val-out-of-bounds 2.8215+-0.4421 2.7648+-0.3560 might be 1.0205x faster string-get-by-val 3.1537+-2.1681 2.5270+-0.2241 might be 1.2480x faster string-hash 1.8696+-0.0511 1.8480+-0.0710 might be 1.0117x faster string-long-ident-equality 27.4485+-2.6576 ? 28.3350+-2.4956 ? might be 1.0323x slower string-repeat-arith 59.6335+-46.8523 34.5079+-3.1104 might be 1.7281x faster string-sub 66.9100+-4.6514 ? 87.1068+-70.3288 ? might be 1.3018x slower string-test 2.6471+-0.0618 ? 2.9425+-1.0094 ? might be 1.1116x slower string-var-equality 46.2640+-0.8141 ? 47.4520+-2.0795 ? might be 1.0257x slower structure-hoist-over-transitions 2.0580+-0.1601 ? 2.1891+-0.5365 ? might be 1.0637x slower switch-char-constant 5.0325+-7.7753 2.1282+-0.0745 might be 2.3647x faster switch-char 5.2073+-0.0799 ? 8.9323+-9.5549 ? might be 1.7154x slower switch-constant 6.6174+-1.4342 ? 6.8336+-1.4703 ? might be 1.0327x slower switch-string-basic-big-var 16.8630+-3.2556 15.1873+-0.2724 might be 1.1103x faster switch-string-basic-big 14.6104+-0.5951 ? 14.6866+-0.2014 ? switch-string-basic-var 14.8495+-0.2594 ? 26.2360+-22.0155 ? might be 1.7668x slower switch-string-basic 14.4147+-3.1113 13.3022+-0.2585 might be 1.0836x faster switch-string-big-length-tower-var 21.4165+-2.8717 20.7491+-0.3713 might be 1.0322x faster switch-string-length-tower-var 15.5912+-0.5848 ? 15.7552+-0.4924 ? might be 1.0105x slower switch-string-length-tower 13.1096+-0.0791 ? 13.8777+-1.1934 ? might be 1.0586x slower switch-string-short 17.3286+-12.2146 14.3845+-2.6691 might be 1.2047x faster switch 10.1392+-1.7536 9.4310+-0.7885 might be 1.0751x faster tear-off-arguments-simple 1.6044+-0.3430 1.5409+-0.3616 might be 1.0412x faster tear-off-arguments 2.3338+-0.1013 ? 3.0005+-2.0953 ? might be 1.2857x slower temporal-structure 17.9276+-0.2123 ? 17.9410+-0.2507 ? to-int32-boolean 16.2933+-8.4522 15.0038+-3.1745 might be 1.0859x faster undefined-test 3.3384+-1.6161 ? 4.0439+-2.2089 ? might be 1.2114x slower <arithmetic> 70.5280+-26.6187 ? 70.6783+-26.9943 ? might be 1.0021x slower <geometric> * 10.2939+-0.3807 10.2552+-0.2055 might be 1.0038x faster <harmonic> 3.8970+-0.3769 3.8901+-0.2103 might be 1.0018x faster TipOfTree MyChanges All benchmarks: <arithmetic> 128.1818+-13.7919 ? 131.2261+-21.9190 ? might be 1.0237x slower <geometric> 14.7962+-0.3331 14.7888+-0.4233 might be 1.0005x faster <harmonic> 3.2531+-0.2462 3.2343+-0.1710 might be 1.0058x faster TipOfTree MyChanges Geomean of preferred means: <scaled-result> 33.7438+-1.3296 ? 34.2913+-2.8024 ? might be 1.0162x slower

Comment on attachment 212810 [details] Patch Attachment 212810 [details] did not pass qt-ews (qt): Output: http://webkit-queues.appspot.com/results/2668053

Created attachment 212814 [details] Patch

Comment on attachment 212814 [details] Patch Patch looks good. Your performance test results have some crazy high variance in them. Did you kill all background apps while you tested, or were you gossiping with Anders the whole time?

(In reply to comment #5) > (From update of attachment 212814 [details]) > Patch looks good. > > Your performance test results have some crazy high variance in them. Did you kill all background apps while you tested, or were you gossiping with Anders the whole time? Due to rule #1 of Sweden Club, my answer is: Uh.. Steam update was running. :(

Comment on attachment 212814 [details] Patch Clearing flags on attachment: 212814 Committed r156602: <http://trac.webkit.org/changeset/156602>

All reviewed patches have been landed. Closing bug.