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Date: Mon, 17 Nov 2008 13:35:36 +0100 From: Max Kellermann <max@...mpel.org> To: Trond Myklebust <trond.myklebust@....uio.no> Cc: linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org Subject: Re: High load in 2.6.27, NFS / rpcauth_lookup_credcache()? On 2008/10/27 16:48, Trond Myklebust <trond.myklebust@....uio.no> wrote: > OK. That points a finger at the garbage collector. Does the following > patch help at all? Hi Trond, the server's load seems to be a little bit lower with 2.6.27.6 plus your patch, but OProfile still gives me 45% in rpcauth_lookup_credcache(). See: 1060627 45.1474 (no location information) rpcauth_lookup_credcache 289362 12.3172 auth_generic.c:0 generic_match 31886 1.3573 page_alloc.c:0 get_page_from_freelist 23932 1.0187 (no location information) page_fault 22176 0.9440 (no location information) schedule 14613 0.6220 (no location information) __d_lookup [...] Max -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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