[Bug 23578] Team Fortress 2: Significant lag disrupts gameplay...

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=23578





--- Comment #45 from Henri Verbeet <hverbeet at gmail.com>  2010-07-14 14:10:48 ---
For what it's worth, my current theory is that the "~4cc3.tmp" process you see
in the oprofile log is something like Steam DRM or VAC trying to scan the
memory of the game's main process. That would be the read_thread_long() and
read_process_memory() calls you see. read_thread_long() uses PTRACE_PEEKDATA,
which isn't very efficient, and that would account for the high amount of
(Linux) kernel time. (Although you don't see the kernel time in the posted
oprofile log.)

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