Cygwin select() issues and improvements

Corinna Vinschen
Sun Mar 20 13:09:00 GMT 2016

Sidenote from the past:

On Feb 15 13:57, Corinna Vinschen wrote:
> On Feb 14 03:09, john hood wrote:
> > Windows scheduling in general seems to be rather poor for Cygwin
> > processes, and there are scheduling differences between processes run in
> > Windows console (which are seen as interactive by the scheduler) and
> > processes run in mintty (which are not).  There doesn't seem to be any
> > priority promotion for I/O as you see on most Unix schedulers.
> I'm not aware of such a feature.

On a hunch, do you see a difference when swiching the machine's process
scheduling from "Adjust for best performance of Programs" to "Adjust for
best performance of Background services"?

You can do this in the performance options in the advanced system


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <>

More information about the Cygwin-patches mailing list