Messages in this thread | | | Date | Mon, 05 May 1997 19:21:33 +1000 | From | Andrew Snare <> | Subject | [2.1.36] Process resource usage (and process startup problems?) |
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Hi. I've noticed that under 2.1.36 there doesn't appear to be any tracking done of how much CPU time a process has used. This can be seen by clock() always returning 0 and in, for example, a top listing whereby none of the processes appear to be using any CPU time at all. The shell's "time" function also fails to find anything I run using any CPU time at all. Sadly I do know this is not the case... if only it was true. :) I'm imagining this is related to the SMP code being overhauled in recent kernel revisions, but haven't even thought about trying to find it yet. Has anyone else noticed this, and if so is it something simple like the inode chown() problem? :)
The other thing I've noticed is that sometimes the machine appears to lockup, but stuff that is running continues to run. Newly created processes appear to take forever to startup. Then all of a sudden the problem goes away and things proceed at full speed. This was noticed after firing up xdm and logging in. The .xsession appears to run at full speed, but anything invoked by things invoked by .xsession stalls. Hmmm. That last sentence is rather hard to parse -- an example is that my xterms fire up on cue, but the shells and shell startup scripts halt for a while. Maybe it's just grainy scheduling or something.
Anyway I'm not sure that's of much use but after following the traffic on this list for a few days and reading the archives I can't see where it's been mentioned by anyone else.
Regards,
- Andrew - -- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ /\/\/\/\/\/\/\ / Andrew Snare: \ \ A dirty \ / -> earthpig@yoyo.cc.monash.edu.au \ \ book \ \ Goofey: earthpig IRC: Earthpig \ \ is seldom / \ http://yoyo.cc.monash.edu.au/~earthpig \ \ dusty / \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ \/\/\/\/\/
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