From: Dave Jones <davej@redhat.com>
To: Nate Diller <nate.diller@gmail.com>
Cc: Andrew Morton <akpm@osdl.org>, Jens Axboe <axboe@suse.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH -mm] [1/2] Remove Deadline I/O scheduler
Date: Thu, 3 Aug 2006 19:30:48 -0400 [thread overview]
Message-ID: <20060803233048.GA7265@redhat.com> (raw)
In-Reply-To: <5c49b0ed0608031557n405196ack3fa2024aae8a9475@mail.gmail.com>
On Thu, Aug 03, 2006 at 03:57:32PM -0700, Nate Diller wrote:
> This patch removes the Deadline I/O scheduler. Performance-wise, it
> should be superceeded by the Elevator I/O scheduler in the following
> patch. I would be very ineterested in hearing about any workloads or
> benchmarks where Deadline is a substantial improvement over Elevator,
> in throughput, fairness, latency, anything.
Its somewhat hard for folks to offer comparative benchmarks when you
remove something. Without any numbers at all showing why your elevator
is superior, removing anything seems very premature.
I'm also not convinced that removing an elevator at all is a good idea,
as it'll cause regressions for anyone who has boot scripts that set
certain mounts to use deadline for eg.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2006-08-03 23:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-03 22:57 [PATCH -mm] [1/2] Remove Deadline I/O scheduler Nate Diller
2006-08-03 23:17 ` Randy.Dunlap
2006-08-03 23:30 ` Dave Jones [this message]
2006-08-03 23:37 ` Randy.Dunlap
2006-08-03 23:46 ` Adrian Bunk
2006-08-04 0:15 ` Nate Diller
2006-08-04 1:03 ` Andrew Morton
2006-08-04 4:24 ` Jens Axboe
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