*** This bug is a duplicate of bug 879334 ***
https://bugs.launchpad.net/bugs/879334
+1
* clean install of 12.04 server.
* LDAP AUTH_SYS
* a single nfs client has no noticable problems, as soon as a second client
starts both clients generate high CPU loads on their side (> 90%, Core 2 Duo)
and on the server side (both nfsd at 14%, io-wait maximal 0.5%, Xeon X5649)
Changing to the deadline scheduler helped after a few minutes delay
(client side CPU load due to nfs: <1%, server side nfsd processes rarely
peak to 6%). I can confirm comment #29.
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https://bugs.launchpad.net/bugs/1006446
Title:
nfs4 causes enormous load in ubuntu-server making it unusable
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