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Re: Deadly embrace between pthread_cond_wait and pthread_cond_signal


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 
>>>>ORDER of MAGNITUDE FASTER
>>>>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 path.cc, 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.

cgf


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