Re: IDE write speed (Promise versus AMD)

From: Jan Kasprzak (kas@informatics.muni.cz)
Date: Thu Sep 05 2002 - 02:33:19 EST


Andrew D Kirch wrote:
: excuse the mailer, but I've been having similar issues with my promise
: controller... interesting huh? give me a little more info on the board and
: make sure to target a reply to trelane@trelane.net, I'll keep you posted on
: anything I find to fix it... right now my speed difference isn't THAT
: dramatic... Going to a beta mandrake install from 8.2 I've lost 40% of my
: software raid-0 performance (from a hdparm of 80MB/s to 56MB/s. :(
:
: I'm going to play with jumpers later, so I'll let you know what I find.

        Mainboard is MSI K7D-Master (AMD 760 MPX chipset),
the Promise controller is PDC 20269 with the following lspci
output:

02:04.0 Unknown mass storage controller: Promise Technology, Inc. 20269 (rev 02) (prog-if 85)
        Subsystem: Promise Technology, Inc.: Unknown device 4d68
        Flags: bus master, 66Mhz, slow devsel, latency 32, IRQ 16
        I/O ports at 9000 [size=8]
        I/O ports at 9400 [size=4]
        I/O ports at 9800 [size=8]
        I/O ports at 9c00 [size=4]
        I/O ports at a000 [size=16]
        Memory at f8000000 (32-bit, non-prefetchable) [size=16K]
        Expansion ROM at <unassigned> [disabled] [size=16K]
        Capabilities: [60] Power Management version 1

-Yenya

-- 
| Jan "Yenya" Kasprzak  <kas at {fi.muni.cz - work | yenya.net - private}> |
| GPG: ID 1024/D3498839      Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E |
| http://www.fi.muni.cz/~kas/   Czech Linux Homepage: http://www.linux.cz/ |
       Pruning my incoming mailbox after being 10 days off-line,
       sorry for the delayed reply.
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