From: Sundeep P. <su...@sa...> - 2004-05-05 16:11:20
Attachments:
oprofiled.strace
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Hi, I'm using an older version of oprofile[ 0.5.2 ] since I'm having trouble with some iberty headers. I'm running against a strange problem. The oprofile daemon is completely swamping the CPU taking up as much as 40% when I'm running traffic. When I stop the traffic, top shows oprofiled at 99%. It stays like that for a few minutes before going down to 0%. I don't quite understand what's going on. When I look the profile data, I see that oprofiled is taking up 14%. I've used oprofile before and it only used to consume 2-3%. What am I doing wrong? I haven't tampered with any of the default settings. Just a simple configure, make and make install. I see some strange things in the strace output of oprofiled. It seems to be spending a lot of time looking into /proc/ksyms. I've attached it to this mail. Any help will be greatly appreciated. thanks, Sundeep |
From: John L. <le...@mo...> - 2004-05-05 16:34:32
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On Wed, May 05, 2004 at 11:04:56AM -0500, Sundeep Peechu wrote: > I'm using an older version of oprofile[ 0.5.2 ] since I'm having Do you really expect us to debug a problem on such an old version of OProfile? regards, john |
From: Sundeep P. <sp...@sa...> - 2004-05-07 18:26:25
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No I don't :) I switched to oprofile 0.7.1 and the problem indeed went away. But for some reason, opreport and opreport -x are printing the same output. I must be missing something trivial. How I can group all the dependent libraries under the same process executable? thanks, Sundeep John Levon wrote: > On Wed, May 05, 2004 at 11:04:56AM -0500, Sundeep Peechu wrote: > > >> I'm using an older version of oprofile[ 0.5.2 ] since I'm having > > > Do you really expect us to debug a problem on such an old version of > OProfile? > > regards, > john > > > ------------------------------------------------------- > This SF.Net email is sponsored by: Oracle 10g > Get certified on the hottest thing ever to hit the market... Oracle 10g. > Take an Oracle 10g class now, and we'll give you the exam FREE. > http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click |
From: John L. <le...@mo...> - 2004-05-11 01:51:37
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On Fri, May 07, 2004 at 01:26:14PM -0500, Sundeep Peechu wrote: > away. But for some reason, opreport and opreport -x are printing the > same output. I must be missing something trivial. How I can group all > the dependent libraries under the same process executable? Please give more details of what you're seeing (your configuration, relevant output you get, etc.) john |