<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Couple of thoughts:<div class=""><br class=""></div><div class="">1) That’s unexpected. You should file a bug on <a href="http://bugs.webkit.org" class="">bugs.webkit.org</a>.</div><div class=""><br class=""></div><div class="">2) SunSpider isn’t the best way to measure performance anymore. Try one of the tests on <a href="http://browserbench.org" class="">http://browserbench.org</a> instead, they are more modern and we tend to use those instead of SunSpider these days.</div><div class=""><br class=""></div><div class="">-Filip</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 24, 2015, at 2:10 PM, Rodney Dowdall <<a href="mailto:rdowdall@cranksoftware.com" class="">rdowdall@cranksoftware.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">Hello<br class=""><br class="">I have two ports of WebKit. The first is based off of revision 145828 and the second is based off of 184845. I have compiled these ports for Linux x86 32 bit. I would like to know why the port based on revision 145828 is faster at running the JavaScriptCore tests. I have the DFG JIT enabled for both, and I do not have the FTL JIT turned on (obviously because it is not supported for 32 bit builds). I was wondering if maybe I need to enable another setting the 184845 revision, but I think I have turned on all of the JavaScriptCore enablements that I can. I can post these if it makes sense for me to do so. Here are the numbers that I am getting from the two builds. I am just wondering if this is what I should expect.<br class=""><br class="">184845 Webkit<br class=""><br class="">Total: 522.9ms +/- 4.3%<br class=""><br class="">3d: 115.8ms +/- 10.2%<br class=""> cube: 57.1ms +/- 13.8%<br class=""> morph: 26.5ms +/- 10.2%<br class=""> raytrace: 32.2ms +/- 4.5%<br class=""><br class="">access: 45.3ms +/- 7.7%<br class=""> binary-trees: 6.0 ms +/- 7.9%<br class=""> fannkuch: 17.0 ms +/- 10.5%<br class=""> nbody: 16.9 ms +/- 8.8%<br class=""> nsieve: 5.4 ms +/- 9.3%<br class=""><br class="">bitops: 17.2 ms +/- 12.8%<br class=""> 3bits-bits-in-byte: 3.6 ms +/- 31.3%<br class=""> bits-in-byte: 4.4 ms +/- 15.7%<br class=""> bitwise-and: 3.5 ms +/- 14.4%<br class=""> nsieve-bits: 5.7 ms +/- 8.5%<br class=""><br class="">controlflow: 6.2 ms +/- 4.9%<br class=""> recursive: 6.3 ms +/- 4.9%<br class=""><br class="">crypto: 57.9 ms +/- 4.8%<br class=""> aes: 20.6 ms +/- 5.2%<br class=""> md5: 23.5 ms +/- 4.8%<br class=""> sha1: 13.8 ms +/- 5.3%<br class=""><br class="">date: 61.9 ms +/- 3.5%<br class=""> format-tofte: 29.6 ms +/- 3.3%<br class=""> format-xparb: 32.3 ms +/- 3.9%<br class=""><br class="">math: 33.4 ms +/- 5.1%<br class=""> cordic: 6.4 ms +/- 14.1%<br class=""> parial-sums: 22.3 ms +/- 4.5%<br class=""> spectral-norm: 4.7 ms +/- 10.3%<br class=""><br class="">regexp: 12.2 ms +/- 3.7%<br class=""> dna: 12.2 ms +/- 3.7%<br class=""><br class="">string: 173.0 ms +/- 2.2%<br class=""> base64: 13.1 ms +/- 4.8%<br class=""> fasta: 32.6 ms +/- 3.3%<br class=""> tagcloud: 32.5 ms +/- 3.3%<br class=""> unpack-code: 76.3 ms +/- 2.3%<br class=""> validate-input 18.5 ms +/- 2.0%<br class=""><br class=""><br class="">145828 WebKit<br class="">Total: 377.0 ms +/- 1.1%<br class=""><br class="">3d: 56.2 ms +/- 3.1%<br class=""> cube: 20.7 ms +/- 6.7%<br class=""> morph: 15.8 ms +/- 2.9%<br class=""> raytrace: 19.7 ms +/- 2.4%<br class=""><br class="">access: 26.3 ms +/- 2.9%<br class=""> binary-trees: 2.1 ms +/- 10.8%<br class=""> fannkuch: 11.2 ms +/- 5.9%<br class=""> nbody: 8.3 ms +/- 4.2%<br class=""> nsieve 4.7 ms +/- 14.4%<br class=""><br class="">bitops: 19.3 ms +/- 4.6%<br class=""> 3bits-bits-in-byte: 2.1 ms +/- 10.8%<br class=""> bits-in-byte: 11.2 ms +/- 14.6%<br class=""> bitwise-and: 5.1 ms +/- 4.4%<br class=""> nsieve-bits: 8.1 ms +/- 2.8%<br class=""><br class="">controlflow: 3.2 ms +/- 9.4%<br class=""> recursive: 3.2 ms +/- 9.4%<br class=""><br class="">crypto: 31.2 ms +/- 3.4%<br class=""> aes: 14.6 ms +/- 7.4%<br class=""> md5: 9.5 ms +/- 4.0%<br class=""> sha1: 7.1 ms +/- 3.2%<br class=""><br class="">date: 64.8 ms +/- 3.7%<br class=""> format-tofte: 29.4 ms +/- 5.0%<br class=""> format-xparb: 35.4 ms +/- 3.2%<br class=""><br class="">math: 39.8 ms +/- 3.8%<br class=""> cordic: 5.8 ms +/- 5.2%<br class=""> partial-sums: 30.2 ms +/- 4.7%<br class=""> spectral-norm: 3.8 ms +/- 14.8%<br class=""><br class="">regexp: 11.6 ms +/- 5.2%<br class=""> dns: 11.6 ms +/- 5.2%<br class=""><br class="">string: 124.6 ms +/- 1.8%<br class=""> base64: 12.6 ms +/- 6.7%<br class=""> fasta: 22.3 ms +/- 6.4%<br class=""> tagcloud: 24.8 ms +/- 4.0%<br class=""> unpack-code: 49.3 ms +/- 2.75<br class=""> validate-input: 15.6 ms +/- 4.4%<br class=""><br class="">Thanks,<br class="">Rodney<br class=""><br class="">_______________________________________________<br class="">webkit-dev mailing list<br class=""><a href="mailto:webkit-dev@lists.webkit.org" class="">webkit-dev@lists.webkit.org</a><br class="">https://lists.webkit.org/mailman/listinfo/webkit-dev<br class=""></div></blockquote></div><br class=""></div></body></html>