Messages in this thread | | | Date | Thu, 27 Dec 2001 08:42:31 +0100 (CET) | From | Mike Galbraith <> | Subject | Re: Informix 7.3 and Linux Kernel 2.4 |
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On Thu, 27 Dec 2001, Stolle, Martin (KIV) wrote:
> At first, Informix works quite well, but after a while, especially > after some traffic on the computer (reading the harddisk by "find", > do a "update statistics" under informix or some exports, the system > starts thrashing. > > I found out, that it starts thrashing with kswapd using 50% of processor > power and oninit using another 50%, when low memory runs short.
(sounds like much zone_normal unfreeable creating persistant imbalance)
> >From then, the system is very very slow. > The problem isn't so dramatic with kernel releases <=2.4.9, but with higher > releases, including 2.4.17, it is not tolerable. > 2.4.17 does not swap to disk, but is still very slow, but kswapd is always > active (without swapping to disk!).
What does /proc/slabinfo look like with 2.4.17? (zillion buffer heads?)
-Mike
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