On 03/24/11 04:13, Jukka Ruohonen wrote:
On Wed, Mar 23, 2011 at 05:24:12PM -0400, Thor Lancelot Simon wrote:All cores spend well over 50% time in 'sys', even when all or almost all are running cc1 processes. The kernel is amd64 -current GENERIC from about 1 week ago -- no DIAGNOSTIC, DEBUG, KMEMSTATS, LOCKDEBUG, etc. Does anyone have any idea what might be wrong here?Another shot in the dark: AMD's so-called C1E is known to cause issues like this (in which case you might want to enable acpicpu(4)).
C1E doesn't exist on multi-socket machines. Christoph