Messages in this thread | | | Subject | Re: Slow NFS performance over wireless! | From | Trond Myklebust <> | Date | Tue, 13 Jan 2004 15:45:58 -0500 |
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På ty , 13/01/2004 klokka 15:25, skreiv Joshua M. Thompson: > I've noticed a similar problem here since upgrading to 2.6. In my case > not has NFS performance gone through the floor vs 2.4.22 but so has > machine performance during the transfer. In 2.4 the machine would be a > bit sluggish but usable...under 2.6 the machine is more or less > *unusable* until the NFS transfer completes. Trying to say, open up > Evolution may take upwards of ten minutes to complete. Unfortunately due > to the extreme performance problem it's not even possible to do any > diagnostics on the machine while it's happening.
There are a couple of performance related patches that should be applied to stock 2.6.0/2.6.1. One handles a problem with remove_suid() generating a whole load of SETATTR calls if you are writing to a file that has the "x" bit set. The other handles an efficiency issue related to random write + read combinations.
Either look for them on my website (under http://www.fys.uio.no/~trondmy/src), or apply Andrew's 2.6.1-mm2 patch.
Cheers, Trond - 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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