From: "Raz Ben-Jehuda(caro)" <raziebe@gmail.com>
To: linux-aio@kvack.org, "Linux Kernel" <linux-kernel@vger.kernel.org>
Cc: jens.axboe@oracle.com, suparna@in.ibm.com
Subject: slow io_submit
Date: Fri, 1 Dec 2006 19:04:57 +0200 [thread overview]
Message-ID: <5d96567b0612010904s361b799t8db72accc287ca54@mail.gmail.com> (raw)
Jens suparna hello
I have managed to understand why io_submit is sometimes very slow.
It is because the device is plugged once too many io's are being sent.
I have conducted a simple test with nr_request to default value of 128
and and 256.
and it proved to be correct.
I would truely appreciate your comment on this.
--
Raz
next reply other threads:[~2006-12-01 17:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-01 17:04 Raz Ben-Jehuda(caro) [this message]
2006-12-01 17:27 ` Jens Axboe
2006-12-01 21:40 ` Raz Ben-Jehuda(caro)
2006-12-04 15:38 ` Phillip Susi
2006-12-05 16:23 ` Raz Ben-Jehuda(caro)
2006-12-05 21:18 ` Phillip Susi
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