Closed
Bug 505566
Opened 15 years ago
Closed 15 years ago
Form control accessing loop that's zillions of times slower than chrome/safari
Categories
(Core :: DOM: Core & HTML, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 504784
People
(Reporter: dveditz, Unassigned)
References
()
Details
(Keywords: hang, perf)
According to a post on MozillaZine a simple 1500-iteration loop can hang Firefox while Chrome/Safari is "instantaneous" and IE8 is pretty fast.
http://forums.mozillazine.org/viewtopic.php?f=25&t=1339175
<html><body>
<form><textarea name="results"></textarea></form>
<script type="text/javascript">
for (i=0;i<1500;i++) document.forms[0].results.value += "\nHello";
</script>
</body></html>
This is certainly a particular instance of a larger problem (which is probably already filed) but may be interesting as an apparently extreme example compared to webkit.
|
||
Comment 1•15 years ago
|
||
SessionStore may be partially to blame here. There are a bunch of bugs filed on textareas being slow to update in general, and bz's profiled similar testcases before so he probably knows the discrete issues there best.
|
||
Comment 2•15 years ago
|
||
Yeah, and in fact I've profiled this exact testcase.
Status: UNCONFIRMED → RESOLVED
Closed: 15 years ago
Resolution: --- → DUPLICATE
You need to log in
before you can comment on or make changes to this bug.
Description
•