Closed
Bug 765631
Opened 13 years ago
Closed 12 years ago
Ionmonkey: Ion 2x slower on reduced ss-format-tofte
Categories
(Core :: JavaScript Engine, defect)
Core
JavaScript Engine
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: h4writer, Unassigned)
References
(Blocks 2 open bugs)
Details
(Whiteboard: [ion:p2])
The following testcase is 2x slower on Ion compared to JM
Date.prototype.formatDate = function(input, time) {
function a() {
if (beforeNY <= 2 && weekday <= 2 - beforeNY) {
if (arrayExists(switches, ia[ij])) {
ia[ij] = eval(ia[ij] + "()");
}
}
}
}
var date = new Date("1/1/2007 1:11:11");
for (i = 0; i < 400000; ++i) {
var shortFormat = date.formatDate("Y-m-d");
}
JM (build-32/js --no-ion): 0.518s
Ion (build-32/js): 1.008s
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Comment 1•13 years ago
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Needs argument object support.
I can still reproduce this - it's not clear how much it affects our SunSpider score but it could be worth looking into.
Blocks: IonSpeed
Whiteboard: [ion:p2]
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Comment 3•12 years ago
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Times are now (on x86_64):
ion: 260ms
jm+ti: 255ms
v8: 43ms
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Comment 4•12 years ago
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I get 186 ms now without any flags flags and with --no-ion.
Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → WORKSFORME
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Description
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