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From: Andrew Morton <akpm@osdl.org>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>
Subject: performance regression from block merge
Date: Thu, 21 Dec 2006 11:25:40 -0800	[thread overview]
Message-ID: <20061221112540.e4ba58bc.akpm@osdl.org> (raw)


Jens, elapsed time for `mke2fs /dev/hdc5' with the anticipatory scheduler
(at least) has gone from nine seconds to sixty as a result of the recent
block merge.

This is the enty enth time that block code has been slammed into mainline
without having had exposure to -mm testers or even to me personally, and it
it the second time (at least) that obvious regressions have occurred as a
result.  I have a New Year's resolution for you ;)

             reply	other threads:[~2006-12-21 19:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-21 19:25 Andrew Morton [this message]
2006-12-21 19:35 ` Jens Axboe
2006-12-21 19:47   ` Jens Axboe
2006-12-21 20:14     ` Andrew Morton
2006-12-21 20:18       ` Jens Axboe

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