Messages in this thread | | | From | Paolo Ornati <> | Subject | Re: i/o wait eating all of CPU on 2.6.1 | Date | Sun, 25 Jan 2004 15:37:50 +0100 |
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On Sunday 25 January 2004 15:30, Jaakko Helminen wrote: > I have two servers, both of which have more than 300 gigabytes of hard > drive space and those files are made available to the network with samba, > nfs and http and it worked fine with 2.6.0 but when I upgraded to 2.6.1 I > noticed that everything was VERY slow, from a machine that is connected > to the other server with a 100M link, 57kB/s tops. i/o wait eats up all > of the cpu. On the other hand, Apache (and everything else) works very > fast when I only send /dev/zero to a client, since that doesn't need disk > operations. > > I don't notice anything suspicious in dmesg but since this happens on two > machines and has only happened when upgraded to 2.6.1, it's most likely > because of 2.6.1. I'm downgrading to 2.6.0 (with mremap-patch) today if I > don't figure out what is wrong. Any ideas?
Is DMA enabled with 2.6.1 on these two machines?
-- Paolo Ornati Linux v2.6.2-rc1-mm3
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