linux-kernel - Re: SSD and IO schedulers

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Date:	Thu, 9 Apr 2009 12:50:23 +0200
From:	Heinz Diehl <htd@...cy-poultry.org>
To:	linux-kernel@...r.kernel.org
Cc:	Corrado Zoccolo <czoccolo@...il.com>,
	J.A. Magallón <jamagallon@....com>,
	Jan Knutar <jk-lkml@....fi>
Subject: Re: SSD and IO schedulers

On 09.04.2009, Heinz Diehl wrote: 

[....]

Quoting myself, I did copy in the wrong results from another machine,
sorry for that! The fsync-tester results were the right ones, though.

Here are the correct ones for the bonnie++ runs (the overall results doesn't differ 
significantly either):


CFQ

Version 1.01d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
wildsau       4004M 69133  48 67512  12 21810   8 94426  59 129977 13  1163   3
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
    16:100000:16/64   589   8 +++++ +++  1211   6   544   7 +++++ +++   421   4


DL

Version 1.01d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
wildsau       4004M 71112  46 66155  15 22001   8 95132  62 130416 14  1191   3
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
    16:100000:16/64   565   9 +++++ +++  1339   6   561   8 +++++ +++   430   4

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