[Webkit-unassigned] [Bug 61239] Unbearably slow performance on MinGW-w64

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=61239





--- Comment #8 from Jonathan Liu <net147 at gmail.com>  2011-12-10 20:21:36 PST ---
I've located the cause of the problem. The _ftime function on MinGW-w64 seems to always return a time buffer with millitm field set to 0. This only occurs when compiling with 64-bit. The problem does not occur with MinGW 32-bit or MinGW-w64 32-bit (-m32).

A workaround for the problem would be to use struct __timeb64 and _ftime64 instead of struct _timeb and _ftime in the static lowResUTCTime() function in JavaScriptCore/wtf/CurrentTime.cpp.

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