From: Ingo Molnar <mingo@elte.hu>
To: Bron Gondwana <brong@fastmail.fm>
Cc: Andi Kleen <andi@firstfloor.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Jeff Mahoney <jeffm@suse.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
ReiserFS Development List <reiserfs-devel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH] reiserfs: kill-the-BKL
Date: Fri, 10 Apr 2009 15:07:35 +0200 [thread overview]
Message-ID: <20090410130735.GC31307@elte.hu> (raw)
In-Reply-To: <20090410003947.GA21681@brong.net>
* Bron Gondwana <brong@fastmail.fm> wrote:
> > For example, if you have /home and / on separate reiser3
> > filesystems, you could see as much as a 200% jump in performance
> > straight away on certain workloads, on a dual-core box.
> >
> > That big BKL overhead is a real reiser3 scalability problem -
> > especially on reiser3 using servers which are likely to have
> > several filesystems on the same box.
>
> Yes - I'm certainly interested in that.
>
> That said, we have a box with 83 reiserfs partitions on it, and
> which is constrained by IO (main servers really don't need much
> CPU). Performance is pretty good even now.
>
> So - I'm interested in this patch series, but not at the expense
> of making reiserfs any less stable. Our customers, funnily
> enough, like it when our service is stable!
Definitely so :-)
Ingo
next prev parent reply other threads:[~2009-04-10 13:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-07 2:19 [PATCH] reiserfs: kill-the-BKL Frederic Weisbecker
2009-04-07 11:24 ` Frederic Weisbecker
2009-04-07 13:40 ` Ingo Molnar
2009-04-07 21:34 ` Alexander Beregalov
2009-04-07 21:57 ` Frederic Weisbecker
2009-04-07 22:19 ` Alexander Beregalov
2009-04-08 0:42 ` Frederic Weisbecker
2009-04-09 15:15 ` Andi Kleen
2009-04-09 15:35 ` Linus Torvalds
2009-04-09 18:40 ` Ingo Molnar
2009-04-09 19:36 ` Andi Kleen
2009-04-09 20:05 ` Frederic Weisbecker
2009-04-09 21:17 ` Ingo Molnar
2009-04-10 0:39 ` Bron Gondwana
2009-04-10 13:07 ` Ingo Molnar [this message]
2009-04-09 21:07 ` Ingo Molnar
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