Messages in this thread | | | Subject | Re: [RFC] kill sleep_on | From | Trond Myklebust <> | Date | Sun, 18 Jan 2004 01:57:54 -0500 |
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På su , 18/01/2004 klokka 01:41, skreiv Andrew Morton: > It would be nice to fix up the lock_kernel()s in the NFS client: SMP lock > contention is quite high in there.
Chuck did a study of that particular issue some 2-3 years ago, but we've addressed all the top problems on his list since then. Do you have any new numbers to show us? I ask because I'm not at all convinced that the BKL adds significantly to our latencies for the moment (I've been looking at those number in the last few days due to the readahead problems that have already been reported).
I am, however, quite convinced that we need new statistics on this sort of issue. Chuck is therefore working on a set of patches to add an "iostat"-like tool to the NFS client. Hopefully that will help settle these questions.
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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