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From: David Newall <davidn@davidnewall.com>
To: Ralf Gross <rg@stz-softwaretechnik.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: io-scheduler tuning for better read/write ratio
Date: Wed, 17 Jun 2009 02:11:14 +0930	[thread overview]
Message-ID: <4A37CB2A.6010209@davidnewall.com> (raw)
In-Reply-To: <20090616154342.GA7043@p15145560.pureserver.info>

Ralf Gross wrote:
> write throughput is much higher than the read throughput (40 MB/s
> read, 90 MB/s write).

Perhaps I've misunderstood, but isn't that common?  Reads have to come
from disk, whereas writes get cached by the drive.

  reply	other threads:[~2009-06-16 16:41 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-16 15:43 io-scheduler tuning for better read/write ratio Ralf Gross
2009-06-16 16:41 ` David Newall [this message]
2009-06-16 18:40   ` Ralf Gross
2009-06-16 18:43     ` Casey Dahlin
2009-06-16 18:56       ` Ralf Gross
2009-06-16 20:16         ` Jeff Moyer
2009-06-22 14:43           ` Jeff Moyer
2009-06-22 16:31             ` Ralf Gross
2009-06-22 19:42               ` Jeff Moyer
2009-06-23  7:24                 ` Ralf Gross
2009-06-23 13:53                   ` Jeff Moyer
2009-06-24  7:25                     ` Ralf Gross
2009-06-24  7:57                       ` Al Boldi
2009-06-25  7:26                         ` Ralf Gross
2009-06-25 13:45                           ` Al Boldi
2009-06-25  7:27                         ` Ralf Gross
2009-06-26  2:19                 ` Wu Fengguang
2009-06-26 10:44                   ` Jens Axboe
2009-06-27  3:46                     ` Wu Fengguang
2009-06-29  9:47                       ` Ralf Gross

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