Very slow IDE performance

Brian Perkins (bperkins@netspace.org)
Sun, 22 Aug 1999 17:43:14 -0400


I'm on the "Linux Support Givaway" list, and have been contacted with
a rather bizarre problem.

She was trying to install RedHat 6 (with kernel 2.2.6, I suppose) on
an Olivetti Pentium 120, and the Redhat boot disk wasn't working.
After fixing this problem, she discovered that her performance was
extremely poor (it took 20 minutes to change the wallpaper) .

The amount of RAM the kernel found was normal, the bogomips value at
boot was sane (56 or so), and it doesn't thrash, it just takes forever to
perform any disk activity ( the hdd light is on constantly but it
isn't constantly seeking).

I had her do hdparm -t , which gave a transfer rate of .38 Megs per
second. Any ideas on what could cause this? Unfortunately, I don't
have any information about the chipset and such, though I do have the
output of hdparm -i:

Model=M1614TA,FwRev=8D-44-21,SerialNo=04013855
Config={HardSect NotMFM HdSw>15uSecFixedDTR>10Mbs RotSpdTol>.5%}
RawCHS=2114/16/63,TrkSize=0,SectSize=0,ECCbytes=4
BuffType=3(DualPortCache),BuffSize=64kB,MaxMultSect=16,MultSect=off
DblWordIO=no,maxPIO=2(fast),DMA=yes,maxDMA=2(fast)
CurCHS=528/64/63,CurSects= -2038431712,LBA=yes,LBASects=2131584
tDMA={min:120,rec:120},DMA modes: sword0 sword1 sword2 mword0 mword1
*mword2
IORDY=yes,tPIO={min:370,w/IORDY:120},PIO modes: mode3 mode4


--
Throb always without you and the throb always within.  
			      --James Joyce, "Ulysses"
Brian Perkins                               bperkins@netspace.org

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/