Messages in this thread |  | | Subject | Very good results with 2.4.12 on a Dell PowerEdge 2550/PERC 3SI Raid | From | Chris Chabot <> | Date | 13 Oct 2001 15:51:14 +0200 |
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Hello All, I just installed linux kernel 2.4.12 on some test PowerEdge 2550 boxes, with a PERC 3/Si Raid card (4x 10krpm scsi u160 disks, 128Mb cache, one raid5 volume, using domsch/adaptecs aacraid driver).
Previously (using 2.4.2 & 2.4.9) the raid volume had a very disapointing read spead of around 22 Mb/sec (a single disk is faster!). You can imagine my suprise when i installed 2.4.12, and the read speed went up to around 60 Mb / Sec !
I tested this speed increase with hdparm, bonnie+, and various 'real life' applications, and it truely is a lot, i repeat _a lot_ faster for me.
I don't know what changed in the block layer between then and now, but please don't change it back ! ;-)
-- Chris Chabot
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