Over the two weeks or more I''ve been seeing occasional xenU run slowly as soon as they are created. Once I get logged in, command line response is intermittent and bursty. Activity will stall then proceed in a burst. If the domain is shutdown and restarted, it often runs fine, but may again be slow. There are no log messages from xen, xen0, or xenU. I just upgraded to today''s pull on 85 hosts, and about 10% of xenU domains showed this slow behavior. I''ve not had any trouble with xen0. This is with both linux 2.4 and linux 2.6 as xen0 and xenU. Most of the machines are uni''s, and a mix of PIII and P4 cpus. For now, I have to revert this batch of boxes to stock linux. (XEN) Using scheduler: Borrowed Virtual Time (bvt) Is there a way to inquire what the current scheduler is and what its params are? How do I see the priorities of the domains? ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
Are you logging in via ssh or the virtual console? If the latter there may be an issue with xend collecting messages from the message ring properly -- certainly I''ve seen problems when hitting the virtual console with a lot of data. -- Keir> > Over the two weeks or more I''ve been seeing occasional xenU run slowly as > soon as they are created. Once I get logged in, command line response > is intermittent and bursty. Activity will stall then proceed in a > burst. If the domain is shutdown and restarted, it often runs fine, > but may again be slow. There are no log messages from xen, > xen0, or xenU. > > I just upgraded to today''s pull on 85 hosts, and about 10% of xenU > domains showed this slow behavior. I''ve not had any trouble with xen0. > This is with both linux 2.4 and linux 2.6 as xen0 and xenU. > Most of the machines are uni''s, and a mix of PIII and P4 cpus. > For now, I have to revert this batch of boxes to stock linux. > > (XEN) Using scheduler: Borrowed Virtual Time (bvt) > > > Is there a way to inquire what the current scheduler is and what its > params are? How do I see the priorities of the domains? > > > > ------------------------------------------------------- > This SF.net email is sponsored by: IT Product Guide on ITManagersJournal > Use IT products in your business? Tell us what you think of them. Give us > Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more > http://productguide.itmanagersjournal.com/guidepromo.tmpl > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xen-devel------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
" Are you logging in via ssh or the virtual console? If the latter there This is with ssh and with an rsh-like tool. I''ll check the virtual console next time I see this. ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
" Are you logging in via ssh or the virtual console? If the latter there I am seeing the interactivity ''pauses'' on both ssh connections and the virtual console. THe pause lasts from 5 seconds (with a fair bit of variance). The ''xm dmesg'' command seems to only show the first 16KB of xen messages. Is there a way to clear the buffer? Or have stow the last 16KB of logs? I looked back through the various logs and did find a series of Timer messages in the xen0 syslog file from late Saturday evening. xen0 is running ntpd. This is build from Oct 6. Oct 9 23:10:09 rack257-xen -- MARK -- Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9992000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9903000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9874000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9846000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9818000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -9790000 [..256 lines removed..] Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -1007000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -979000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -952000 Oct 9 23:10:17 rack257-xen kernel: Timer ISR: Time went backwards: -924000 Oct 9 23:30:11 rack257-xen -- MARK -- Oct 9 23:50:14 rack257-xen -- MARK -- ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel