Re: Wierd slowdowns
Kris Buytaert <mlkb-1zPVpAQ/[email protected]>
| Newsgroups | gmane.linux.cluster.openmosix.general |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 2006-02-02 at 15:56 +0100, Jeroen Demeyer wrote: > Hello list, > > I'm having a very strange problem where some processes just execute much > slower than they should. Let me explain: sometimes, for no apparent > reason, a certain process takes much more CPU time than normal. For > instance, a certain program normally finishes after about 1 CPU-hour, > but sometimes it might take 30 hours or more. With "CPU-hour", I really > mean time spent on CPU (not real time), as reported by ps for example. > > Also note that I don't see any particular correlation between this bug > and openMosix, so it could be that openMosix doesn't have anything to do > with it. However, so far I have only seen this problem on the diskless > 'slave' nodes, and not on the master node (with uptime of 58 days), > which runs the same kernel. > > If anyone has ever seen anything similar to this, please say so. I've never seen anything similar to this. You mention "this node 32" , do you mean that it only happens on 1 particular node or is it happening on more nodes ? Also, have you got an idea about the status of the network at that moment ? It it more loaded than otherwise ? greetings -- Kris Buytaert <mlkb-1zPVpAQ/[email protected]> ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642