Closed
Bug 780458
Opened 12 years ago
Closed 9 years ago
Math.IEEEremainder makes ToInt32 slow for non-integer values
Categories
(Rhino Graveyard :: Core, defect)
Tracking
(Not tracked)
RESOLVED
FIXED
People
(Reporter: anba, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1 Build ID: 20120713134347 Steps to reproduce: ScriptRuntime.toInt32() uses Math.IEEEremainder() to perform the ToInt32 conversion for non-integer values. Math.IEEEremainder() is somewhat slow compared to the code in vm/NumericConversions.h, so maybe we should just copy over the SpiderMonkey implementation to Rhino. Actual results: Micro-Benchmark: (function(r) { var s=Date.now(), r2=+r; for(var i=0;i<r2;++i) 1.1&1; return Date.now() - s })(50000000) Without patch -> ~4100ms With patch -> ~100ms
Reporter | ||
Comment 1•12 years ago
|
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Pull request at https://github.com/mozilla/rhino/pull/78
Reporter | ||
Comment 2•9 years ago
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PR was merged
Status: UNCONFIRMED → RESOLVED
Closed: 9 years ago
Resolution: --- → FIXED
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Description
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