Hi,
I've successfully set up SW-RAID0 with Kernel 2.4.3 and Raidtools 0.9.
I did this to increase the performance of my HD, but nothig happens.
The hdparm results:
hdparm -t /dev/md0 : 20.25 MB/sec
hdparm -t /dev/hda : 20.51 MB/sec
hdaprm -t /dev/hdc : 20.71 MB/sec
I thougt the performnace of RAID0 should near 40MB/sec.
I played with different chunk-sizes, but the result was everytime the same.
The drives are both Maxtor DiamondMax VL40, 30GB, DMA on.
No other drive is attached on the bus.
Here are also some bonnie++ results:
-- RAID-0 --
-- chunk-size=16 --
Version 1.01 ------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
debian 1G 7416 99 14277 20 7498 10 6942 90 27007 20
113.0 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 267 99 +++++ +++ 10968 100 269 99 +++++ +++ 1388 99
-- chunk-size=32 --
Version 1.01 ------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
debian 1G 7396 99 14075 20 7469 10 6945 90 26960 20
133.7 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 265 100 +++++ +++ 10695 99 267 99 +++++ +++ 1447 100
-- Single HD /dev/hdc1 --
Version 1.01 ------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
debian 1G 7173 96 11055 13 5038 6 5999 78 29146 21
90.7 1
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 272 100 +++++ +++ 10482 99 274 99 +++++ +++ 1437 100
Are there known performanace problems with 2.4.3, or is it necessary to
apply patches to the kernel?
Or did I something wrong??
Thank you for every hint!
Andreas
--
Andreas Peter *** [EMAIL PROTECTED]
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