Date: Tue, 16 Nov 2004 20:11:10 +0200 From: Petri Helenius <pete@he.iki.fi> To: freebsd-threads@freebsd.org Subject: thread scheduling Message-ID: <419A42BE.5090507@he.iki.fi>
next in thread | raw e-mail | index | archive | help
I have an single CPU (2.0GHz P4 Celeron) machine which is practically empty running an application which dispatches detached threads to do various kinds of work. It seems that recently process scope threads seem to have fairly random scheduling latency up to various seconds while system scope threads work as expected. This behaviour seems to have introduced between 5.2.1 and 5.3 but cannot point exactly when. I have printf's next to pthread_create and at the top of the new thread routine and the delay is usually in order of multiple seconds. The application also uses itimers if that makes a difference. Haven't built a simplified application demonstrating the issue yet, but will do that if the problem is not known. Pete
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?419A42BE.5090507>