Messages in this thread | | | Date | Tue, 24 Feb 2004 14:35:24 -0500 (EST) | From | Ron Peterson <> | Subject | Re: network / performance problems |
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On Tue, 24 Feb 2004, David S. Miller wrote:
> Hmmm, I wonder if the connection tracking tables are simply never shrinking. > > Can you get some kernel profiles when the problem hits? If you don't know how > to do this, it's got to be documented somewhere and I'm sure someone can point > you at how to do it. > > I bet we'll see netfilter at the top of the profiles or something like that.
OK.
I haven't done kernel profiling before. Did a little googling and this is what I think I know (2.4.x)
In lilo.conf, do append="profile=2" (is 2 a good number?) reboot echo > /proc/profile readprofile -m System.map-2.4.24 (or whatever)
Is that correct?
Of course, this problem happens fastest on productions machines, which I hate to put out of commission... I need to turn my attention to some other stuff for a bit today, but tonight I'll see if I can't work something up on a non-production machine to make it go bad. Then do some profiling.
_________________________ Ron Peterson Network & Systems Manager Mount Holyoke College
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