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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION: Some XMLHttpRequest tests have become much slower, and frequently time out (http/tests/xmlhttprequest/methods-async.html, http/tests/xmlhttprequest/workers/methods.html)"
href="https://bugs.webkit.org/show_bug.cgi?id=161696#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - REGRESSION: Some XMLHttpRequest tests have become much slower, and frequently time out (http/tests/xmlhttprequest/methods-async.html, http/tests/xmlhttprequest/workers/methods.html)"
href="https://bugs.webkit.org/show_bug.cgi?id=161696">bug 161696</a>
from <span class="vcard"><a class="email" href="mailto:ap@webkit.org" title="Alexey Proskuryakov <ap@webkit.org>"> <span class="fn">Alexey Proskuryakov</span></a>
</span></b>
<pre>There are a couple reasons for such behavior that I can think of:
1. Disk caching going crazy, and storing way too many files to be performant (we've seen that with media loads before).
2. Us gradually adding more and more unrelated tests that globally slow down the system in some way, perhaps leaking VM entries or confusing JSC garbage collection code.</pre>
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