RESOLVED FIXED 13595
Repeatedly accessing XHR.responseText on a large file (70MB) causes memory usage to balloon 
https://bugs.webkit.org/show_bug.cgi?id=13595
Summary Repeatedly accessing XHR.responseText on a large file (70MB) causes memory us...
Antoine Quint
Reported 2007-05-05 09:58:46 PDT
Loading a large video file using XMLHttpRequest make the nightly WebKit application memory shoot up to about 800MB in 5 seconds, and keeps going up until no memory is left.
Attachments
Testcase (1.13 KB, application/xhtml+xml)
2007-05-05 09:59 PDT, Antoine Quint 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Antoine Quint
Comment 1 2007-05-05 09:59:58 PDT
Created attachment 14359 [details] Testcase
Antoine Quint
Comment 2 2007-05-05 10:03:39 PDT
Comment on attachment 14359 [details] Testcase This testcase needs to be opened from the local filesystem given that it makes a call to another domain and would result in a JS exception if opened directly from the link within the bug.
Alexey Proskuryakov
Comment 3 2007-05-06 00:03:08 PDT
It doesn't look like there's a leak here, but garbage collection doesn't free memory quickly enough.
David Kilzer (:ddkilzer)
Comment 4 2007-07-14 16:32:21 PDT
<rdar://problem/5335880>
Geoffrey Garen
Comment 5 2007-07-16 15:49:51 PDT
In particular, it looks like the problem is caused by this line var currentLength = xhr.responseText.length; which causes the network data to be serialized to text every time a new chunk arrives. Is there a real website that uses this technique?
Alexey Proskuryakov
Comment 6 2007-07-25 21:01:11 PDT
Fixed by Maciej in r24633 (as <rdar://problem/5300291>).
David Kilzer (:ddkilzer)
Comment 7 2007-07-25 23:41:30 PDT
(In reply to comment #6) > Fixed by Maciej in r24633 (as <rdar://problem/5300291>). Follow-up fix in r24637.
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