Ned Slider wrote on Mon, 04 Aug 2008 10:34:57 +0100: > quote > # Frequency scaling on AMD rev F CPUs under Xen can result in > # timekeeping problems for fully virtualized guests, so we disable > # it by default. > if [ -d /proc/xen ] && [ "$cpu_vendor" == AuthenticAMD ] \ > && [ "$cpu_family" -le 15 ]; then > default_governor=performance > fi > /quote
That's the patch mentioned by Steve. I didn't look in the cpuspeed init file earlier, I did now - it's inside it. As I assumed it doesn't load ondemand. Both my cpus are "family 15", so this applies. However, I'm not running fully virtualized guests. Nevertheless, the time warning occurs, not only in domU, but also in dom0. However, I think it's harmless. Time is absolutely stable in dom0 and domU. Maybe that may be change under more load. Maybe it's less harmless in fully virtualized machines. It's a pity that so few information is available. Kai -- Kai Schätzl, Berlin, Germany Get your web at Conactive Internet Services: http://www.conactive.com _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
