Messages in this thread | | | Date | Sun, 24 Feb 2008 04:49:18 +0200 | From | Pekka Enberg <> | Subject | Re: [PATCH] x86: add the debugfs interface for the sysprof tool |
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Hi Andrew,
Andrew Morton wrote: > I didn't need to write a new kernel module to enable that > thirteen-character shell script, and I don't believe one needs to write a > new kernel module to put a nice easy-to-use GUI around oprofile either. > > This is one of those i-cant-believe-im-having-this-discussion discussions.
Sysprof tracks the full stack frame so it can provide meaningful call tree (who called what) which is invaluable for spotting hot _paths_. I don't see how oprofile can do that as it tracks instruction pointers only.
Pekka
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