Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: filesystem access slowing system to a crawl | Date | Wed, 5 Feb 2003 11:03:41 +0200 |
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On 4 February 2003 11:29, Thomas B?tzler wrote: > maybe you could help me out with a really weird problem we're having > with a NFS fileserver for a couple of webservers: > > - Dual Xeon 2.2 GHz > - 6 GB RAM > - QLogic FCAL Host adapter with about 5.5 TB on a several RAIDs > - Debian "woody" w/Kernel 2.4.19 > > Running just "find /" (or ls -R or tar on a large directory) locally > slows the box down to absolute unresponsiveness - it takes minutes > to just run ps and kill the find process. During that time, kupdated > and kswapd gobble up all available CPU time. > > The system performs great otherwise, so I've ruled out a hardware > problem. It can't be a load problem because during normal operation, > the system is more or less bored out of its mind (70-90% idle time). > > I'm really at the end of my wits here :-( > > Any help would be greatly appreciated!
Canned response: * does non-highmem kernel make any difference? * does UP kernel make any difference? * can you profile kernel while "time ls -R" is running? * try 2.4.20 and/or .21-pre4 * tell us what you found out -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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