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From: Magnus Holmgren <magnushol@gmail.com>
Subject: Re: Cygwin slow on x64 systems
Date: Wed, 1 Sep 2010 17:26:54 +0000 (UTC)
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Eric Blake <eblake <at> redhat.com> writes:

> >> I did some testing on my 64-bit Vista system, and it appears that
> >> CreateThread is the main cause.
> >
> > To test this, I removed the call to sigproc_init in dll_crt0_0 and made sure
> > it was always called in dll_crt0_1 instead. Suddenly the sigp thread started
> > executing immediately, and its initialization was complete long before
> > wait_for_sigthread was called.
> 
> Since you obviously have a patch, would you mind sharing it, rather than 
> just your conclusions from said patch?

Not quite ready for commit as is, but here it is:

Index: src/winsup/cygwin/dcrt0.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/dcrt0.cc,v
retrieving revision 1.382
diff -r1.382 dcrt0.cc
746,747c746,747
<   if (!dynamically_loaded)
<     sigproc_init ();
---
>   //if (!dynamically_loaded)
>     //sigproc_init ();
792c792
<   if (dynamically_loaded)
---
>   //if (dynamically_loaded)

  Magnus



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