On Mon, 16 Oct 2006, Kir Kolyshkin wrote: > Dag Wieers wrote: > > > I've just written a small dstat plugin to monitor CPU usage per VE. You can > > find the plugin in the dstat subversion repository linked from: > > > > http://dag.wieers.com/home-made/dstat/ > > > > Dstat is much like vmstat, but modular and versatile. So you can extend it > > with whatever counters you want to visualize, next to other counters. This > > helps to relate counters and find/troubleshoot bottlenecks. > > > > This plugin can help to find the most consuming VE, or visualize how VE's > > are matching up to each other (and the system CPU usage). > > Thank you! I actually use dstat on my Gentoo note.
Great :) > Speaking of counters, /proc/user_beancounters is of interest to any OpenVZ > user. Format is described at http://wiki.openvz.org/proc/user_beancounters. > "held" and "failcnt" columns are most "dynamic". You can use the values either > directly, or make some consolidated figures based of formulae in wiki. Well, I was wondering how the beancounters could be of any use. I guess it may be useful to see when (and maybe where) they happen, but how would it be displayed the most useful ? An aggregated number of all failcnt (either global, or per VPS) ? That way one can see if any failcnts happen, but they'll have to look into the beancounters themselves to know exactly which ones happened. The held-changes are mostly useless to display in a dstat-fashion. Unless maybe if you are a developer ? There's so much information that needs an in-depth knowledge. > Other thing that might be of interest is /proc/fairsched{,2}. These files are > from OpenVZ Fair CPU scheduler. The only problem is looks like the format is > not documented (well, not counting the source code). > > Also, Kirill Korotaev will give us some suggestions... By any means, if you know what is interesting and how it could be made visible on a single line (aggregated or not) we can make different openvz plugins depending on the use-case. Kind regards, -- dag wieers, [EMAIL PROTECTED], http://dag.wieers.com/ -- [all I want is a warm bed and a kind word and unlimited power] _______________________________________________ Users mailing list [email protected] https://openvz.org/mailman/listinfo/users
