From: Max Kellermann <max@duempel.org>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org
Subject: Re: High load in 2.6.27, NFS / rpcauth_lookup_credcache()?
Date: Mon, 17 Nov 2008 13:35:36 +0100 [thread overview]
Message-ID: <20081117123536.GA16539@squirrel.roonstrasse.net> (raw)
In-Reply-To: <1225122503.14242.12.camel@heimdal.trondhjem.org>
On 2008/10/27 16:48, Trond Myklebust <trond.myklebust@fys.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
next prev parent reply other threads:[~2008-11-17 12:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 9:12 High load in 2.6.27, NFS / rpcauth_lookup_credcache()? Max Kellermann
2008-10-22 17:56 ` J. Bruce Fields
2008-10-23 12:36 ` Max Kellermann
2008-10-23 14:55 ` Trond Myklebust
2008-10-24 8:39 ` Max Kellermann
2008-10-24 18:09 ` Trond Myklebust
2008-10-27 9:58 ` Max Kellermann
2008-10-27 15:48 ` Trond Myklebust
2008-11-17 12:35 ` Max Kellermann [this message]
2008-11-19 22:31 ` Trond Myklebust
2008-11-20 14:08 ` Max Kellermann
2008-12-15 23:44 ` Harry Edmon
2008-12-16 13:02 ` Trond Myklebust
2008-12-16 21:21 ` Willy Tarreau
2008-12-16 23:21 ` [stable] " Greg KH
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