From: Christoph Hellwig <hch@ns.caldera.de>
To: Peter Wong <wpeter@us.ibm.com>
Cc: linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net,
Hans Tannenberger <Hans-Joachim.Tannenberger@us.ibm.com>,
Ruth Forester <rsf@us.ibm.com>, lahr <lahr@us.ibm.com>,
"Carbonari, Steven" <steven.carbonari@intel.com>
Subject: Re: [Lse-tech] Re: Lockmeter Analysis of 2 DDs
Date: Fri, 7 Sep 2001 17:53:24 +0200 [thread overview]
Message-ID: <20010907175324.A19821@caldera.de> (raw)
In-Reply-To: <OFBC292301.DC08DA17-ON85256AC0.00555C52@raleigh.ibm.com>
In-Reply-To: <OFBC292301.DC08DA17-ON85256AC0.00555C52@raleigh.ibm.com>; from wpeter@us.ibm.com on Fri, Sep 07, 2001 at 10:47:37AM -0500
On Fri, Sep 07, 2001 at 10:47:37AM -0500, Peter Wong wrote:
> Indeed, io_request_lock is very hot once the bounce buffers were
> eliminated. Is anyone working on a patch for the io_request_lock that
> possibly take the global lock and splits it into a per device queue lock?
> We understand that getting this patch into 2.4 is unlikely, but it would
> be nice to have this patch available on 2.4 for experimental purposes.
ftp://ftp.kernel.org/pub/linux/kernel/people/axboe/v2.5/
Christoph
--
Of course it doesn't work. We've performed a software upgrade.
next prev parent reply other threads:[~2001-09-07 15:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-07 15:47 Lockmeter Analysis of 2 DDs Peter Wong
2001-09-07 15:53 ` Christoph Hellwig [this message]
2001-09-07 17:04 ` lahr
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