Re: SSD and IO schedulers

From: Heinz Diehl
Date: Thu Apr 09 2009 - 06:48:33 EST


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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