Messages in this thread | | | Date | Tue, 19 Sep 2006 01:18:00 +0400 | From | "Vladimir B. Savkin" <> | Subject | Re: Network performance degradation from 2.6.11.12 to 2.6.16.20 |
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On Mon, Sep 18, 2006 at 06:50:22PM +0200, Andi Kleen wrote: > > I suppose in the worst case a sysctl like Vladimir asked for could be added, > but it would seem somewhat lame. > Please think about it this way: suppose you haave a heavily loaded router and some network problem is to be diagnosed. You run tcpdump and suddenly router becomes overloaded (by switching to timestamp-it-all mode), drops OSPF adjancecies etc. Users are angry, and you can't diagnose anything. But with impresise timestamps and maybe even with reordered packets you still have some traces to analyze. So, in this particular corner case it's not that lame.
Or maybe patching tcpdump will do better? ~ :wq With best regards, Vladimir Savkin.
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