|Ammo.js example runs much slower in recent dev channel|
|Reported by rena...@gmail.com, May 15 2012||Back to list|
Chrome Version : 20.0.1132.3 OS Version: 6.0 (Windows Vista, Windows Server 2008) URLs (if applicable) : http://syntensity.com/static/ammo.html Other browsers tested: Add OK or FAIL after other browsers where you have tested this issue: Firefox 12.0: OK Firefox 15.0a1 (2012-05-15) : OK What steps will reproduce the problem? 1. Run the test at the above URL. What is the expected result? Smooth framerate like in FF and older versions of Chrome. What happens instead? Stuttering and poor framerate for the first run of the test. Please provide any additional information below. Attach a screenshot if possible. UserAgentString: Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.3 Safari/536.11
May 17 2012,
Some preliminary investigation has been done and V8 bug http://code.google.com/p/v8/issues/detail?id=2139 has been filed about this. The basic problem (long compilation times) doesn't look like a recent regression, if it's a regression at all, but it looks like multiple recent changes have compounded the problem and now startup of Emscripten-compiled code performs really poorly. Assigning to danno; perhaps dupe this bug to the V8 bug. Note also that Issue 123822 describes a similar problem with long compilation times.
May 31 2012,
Sep 26 2012,
Fixed in v8:r12613.
Mar 10 2013,
Apr 10 2013,
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