Messages in this thread | | | Date | Sun, 25 Jan 2004 16:30:42 +0200 | Subject | i/o wait eating all of CPU on 2.6.1 | From | Jaakko Helminen <> |
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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?
And since I'm not subscribed to Linux Kernel Mailing List, please forward any replies to me.
-Jaakko Helminen
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