on 02/09/2010 12:08 jan.gr...@bristol.ac.uk said the following: > On Wed, 1 Sep 2010, Ivan Voras wrote: > >> On 09/01/10 15:08, jan.gr...@bristol.ac.uk wrote: >>> I'm running -STABLE with a kde-derived desktop. This setup (which is >>> pretty standard) is providing abysmal interactive performance on an >>> eight-core machine whenever I try to do anything CPU-intensive (such as >>> building a port). >>> >>> Basically, trying to build anything from ports rapidly renders everything >>> else so "non-interactive" in the eyes of the scheduler that, for instance, >>> switching between virtual desktops (I have six of them in reasonably >>> frequent use) takes about a minute of painful waiting on redraws to >>> complete. >> >> Are you sure this is about the scheduler or maybe bad X11 drivers? > > Not 100%, but mostly convinced; I've just started looking at this. It's my > first stab at what might be going on. X11 performance is usually pretty > snappy. There's no paging pressure at all.
>From my experience: 1. system with Athlon II X2 250 CPU and onboard AMD graphics - no issues with interaction between buildworld and GUI with all KDE4 effects enabled (OpenGL). 2. system with comparable Core2 Duo CPU and onboard Intel graphics (G33) - enabling OpenGL desktop effects in KDE4 leads to the consequences like what you describe. With all GUI bells and whistles disabled the system behaves quite like the AMD system. -- Andriy Gapon _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
