On Sun, Jan 22, 2006 at 11:00:28PM +0100, Tobias Roth wrote: > Hi > > Since some time, I experience extremely bad system behaviour under > load. For instance when compiling something, or unpacking a large > archive, the system is almost unusable, even the mouse pointer > reacts sloppy. > > My system: > > 6.0-STABLE FreeBSD 6.0-STABLE #7: Sun Jan 22 15:53:39 CET 2006 i386 > > I use SCHED_BSD. > > How can I diagnose the problem, or provide more information? What > factors might influence what I experience? I cannot give a more precise > point in time as when this started, since I switched versions and > systems a few times recently.
This has been discussed a number of times: the short answer is to look for interrupt storms (vmstat -i), interrupt sharing (also vmstat -i), and in particular shared interrupts involving usb or other drivers still under Giant. Kris
pgpSYc9ten4qi.pgp
Description: PGP signature
