 | | | Problems with multi-threaded application and Dual Xeon MP system | Problems with multi-threaded application and Dual Xeon MP system 2004-12-02 - By John Haxby
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Hello All,
We're having problems here with a multi-threaded application running
on a dual Xeon MP machine --pthread_mutex_lock() is take a very long
time to acquire the lock, anything up to about 30s sometimes. With
only 50 threads competing for this critical section this seems a tad
unreasonable. Especially when the same application running the same
load on hardware that is only substantially different in the CPU type
(plain Xeon instead of Xeon MP) doesn't show any evidence of any thread
getting stuck in pthread_mutex_lock().
I do vaguely recall someone mentioning problems along these lines on one
of the lists, but I'm blowed if I can find it again. Does this problem
ring any bells with anyone?
jch
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