Deadly embrace between pthread_cond_wait and pthread_cond_signal

Christopher Faylor
Wed Jun 27 08:23:00 GMT 2001

On Wed, Jun 27, 2001 at 11:23:22AM -0400, Christopher Faylor wrote:
>On Wed, Jun 27, 2001 at 11:10:13AM -0400, Norman Vine wrote:
>>Christopher Faylor writes:
>>>On Wed, Jun 27, 2001 at 02:20:08AM -0400, Norman Vine wrote:
>>>>I tried Rob's proposed  IsBadWritePtr(...) patch 
>>>>< see cygwin list [RE:] pthreads works ,sorta  thread >
>>>>And running the Python regression suite is an 
>>>>with this patch applied :-))
>>>>real    7m5.712s
>>>>user    2m50.883s
>>>>sys     1m15.236s
>>>I bet it would improve even more if we replaced the VirtualQuery
>>>in, too.
>>With Rob's new patch that does this, 
>>there actually isn't very much difference
>>real    7m10.729s
>>user    2m50.963s
>>sys     1m11.721s
>>Thanks !
>Huh.  I wonder why it makes such a big difference for pthreads.

Thanks for trying this, by the way, Norman.


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