Hi All! Thank you all for your replies!
I narrowed the range between r35202 and r35208, and filled a new-bug report: bug 20097. Regards, Zoltan > > On Jul 18, 2008, at 8:00 AM, Zoltan Herczeg wrote: > >> Hi webkit developers! >> >> I have recently updated my repository from revision 35033 to revision >> 35231, and noticed a great (20%) perfromance loss for sunspider. My >> test >> system has a Dual-core 2.2 GHz AMD opteron cpu. Since this is a big >> range, >> I have tried some other revisions as well to find out the reason of >> this >> big jump. It seems the change was heppened between 35208 and 35231. >> >> Sunspider results: >> revision 35033 - 3168.0ms +/- 0.8% >> revision 35231 - 3172.0ms +/- 0.7% >> revision 35208 - 3782.8ms +/- 0.6% >> revision 35231 - 3779.2ms +/- 0.6% >> >> *1.193x as slow* according to sunspider-compare-results > > To clarify, is the standard SunSpider slower or is a version you have > extended with custom tests slower? > >> We have collected more than a dozen other js programs to extend the >> jsc >> benchmark set, and it seems "bubble sort" is slowed down to 3.4 sec >> from 2 >> esec, which is about 70% performance loss. > > >> The results and this benchmark are attached to this mail. >> >> Do you know about it? Is there a reason behind it or shall I make a >> bug-report? > > Performance regressions are definitely worth a bug report. Be sure to > include some information that you did not include in this email, such > as which port of WebKit you are building, which compiler version you > are using, and how you are running the tests. > > Kind regards, > > Mark Rowe _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev