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Re: Serious performance problems (new snapshot has some performance improvement)


On Sat, May 28, 2005 at 11:05:23PM -0400, Christopher Faylor wrote:
>On Sat, May 28, 2005 at 08:18:46PM -0400, Christopher Faylor wrote:
>>I have an idea about how to work around this problem but I have to think
>>about how dangerous it might be.  Basically removing the signal handling
>>wrapper around pthread_getspecific and pthread_setspecific.  That may
>>work ok but I have to think about worst case scenarios.
>
>I've semi-convinced myself that pthread_[gs]etspecific do not need signal
>protection so I've released a snapshot which turns it off:
>
>http://cygwin.com/snapshots/
>
>This version is about 2.7 times faster than cygwin 1.5.17 but it is still
>not as fast as mingw.  I don't think we're going to hit mingw performance
>since there are still cygwin overhead issues involved.
>
>AFAIK, this is only going to provide a speedup for this specific case.
>I don't think a general cygwin user is going to notice any improvement.

Gerrit, if you have a chance could you confirm or deny if this change has
any effect for you?

cgf

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