On 09/19/2010 10:17 AM, Dan Kenigsberg wrote: > On Sat, Sep 18, 2010 at 10:58:39PM -0400, sean darcy wrote: >> I'm running kvm on F14. I'm running 2 XP clones. The ksm and ksmtuned >> demons are running. >> >> Yet: >> >> for ii in /sys/kernel/mm/ksm/* ; do echo -n "$ii: " ; cat $ii ; done >> /sys/kernel/mm/ksm/full_scans: 0 >> /sys/kernel/mm/ksm/pages_shared: 0 >> /sys/kernel/mm/ksm/pages_sharing: 0 >> /sys/kernel/mm/ksm/pages_to_scan: 100 >> /sys/kernel/mm/ksm/pages_unshared: 0 >> /sys/kernel/mm/ksm/pages_volatile: 266200 >> /sys/kernel/mm/ksm/run: 0 >> /sys/kernel/mm/ksm/sleep_millisecs: 20 >> >> And yes, I've echo'd 1 to sys/kernel/mm/ksm/run, but it gets reset to >> 0 after about a minute (ksmtuned at work?). >> >> When does ksm do its stuff? This is a pretty big machine (16G). Does >> it wait until there's memory pressure? > > Yes, ksmtuned does exactly that. If you prefer to control ksm/run > yourself, you can shut this service down.
If you have sufficient memory on the host, ksm won't scan until the free ram pages will cross some water mark. Check /etc/ksmtuned.conf and watch the log file if debug is enabled. > _______________________________________________ > virt mailing list > [email protected] > https://admin.fedoraproject.org/mailman/listinfo/virt _______________________________________________ virt mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/virt
