This is the mail archive of the
cygwin
mailing list for the Cygwin project.
RE: Problems with Windows threads and cygwin sleep()
- From: "Dave Korn" <dave dot korn at artimi dot com>
- To: <cygwin at cygwin dot com>
- Date: Thu, 25 Aug 2005 13:38:33 +0100
- Subject: RE: Problems with Windows threads and cygwin sleep()
----Original Message----
>From: Corinna Vinschen
>Sent: 25 August 2005 13:09
>
> Even if we can't do much about it, it would be interesting to find out
> how Cygwin affects CPU usage of non-Cygwin processes.
>
When I moved from 2k to XP I noticed that running big cross compiles in
the background in a bash shell was much more obtrusive than it used to be,
and could cause other (gui) apps to be unresponsive and stall; I always use
taskmanager to lower the priority of my bash shells these days.
I think that MS must have buggered up^W^W'improved' their scheduler
between 2k and XP, and this interaction is a result. My first guess is that
there's some competition for a locked resource of some kind, and this
particularly interferes with scheduling under heavy load, but that's only a
guess at the moment. I think tracking this one down might be easiest with a
proper windbg/remote kernel debug setup.
cheers,
DaveK
--
Can't think of a witty .sigline today....
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/