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From "Ryan Bloom" <...@covalent.net>
Subject RE: [PATCH] speed up network timeout processing
Date Wed, 03 Jul 2002 15:21:02 GMT
> From: trawick@rdu88-250-182.nc.rr.com [mailto:trawick@rdu88-250-
> 
> "Ryan Bloom" <rbb@covalent.net> writes:
> 
> > > From: trawick@rdu88-250-182.nc.rr.com [mailto:trawick@rdu88-250-
> > >
> > > A little bird told me that FD_ZERO() burns lots of cycles in
> > > apr_wait_for_io_or_timeout().  It turns out that this is an easy
> > > conversion to poll(), which doesn't have such overhead in the
> > > interface.
> > >
> > > This works for me with some testing (timeouts on read and write
work
> > > for me).
> >
> > Can we remove the #ifdef's by just using apr_poll here?
> 
> I'd rather we not, since that introduces a fair amount of extra
> overhead.

Then let's get rid of the overhead.  If we don't use apr_poll, then the
overhead is maintenance, because we have abstracted out the poll/select
difference twice in the code.

Ryan



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