that does look a bit slow performance wise. I'm not 100% certain, but I
don't think 2.2.17 is patched to take advantage of ata100. maybe try the
ata100 patch from http://www.linux-ide.org.
Jason
>
> I have Intel's D815EEA mother board and IBM's Ultra ATA 100 hard disk.
>
> I've given the following hdparm commands after RH 6.2 installation:
>
>
> # /sbin/hdparm -d1 /dev/hda
> # /sbin/hdparm -m16 /dev/hda
> # /sbin/hdparm -c1 /dev/hda
> # /sbin/hdparm -u1 /dev/hda
>
>
> # /sbin/hdparm -i /dev/hda
>
> /dev/hda:
>
> Model=SAMSUNG SV1021H, FwRev=PJ100-11, SerialNo=0266J1FNA15402
> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
> BuffType=3(DualPortCache), BuffSize=426kB, MaxMultSect=16,
> MultSect=16
> DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=2
> CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=19932192
> tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
> IORDY=yes, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
> UDMA modes: mode0 mode1 mode2 mode3 mode4 *mode5
>
>
> # /sbin/hdparm /dev/hda
>
> /dev/hda:
> multcount = 16 (on)
> I/O support = 1 (32-bit)
> unmaskirq = 1 (on)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> nowerr = 0 (off)
> readonly = 0 (off)
> readahead = 8 (on)
> geometry = 1240/255/63, sectors = 19932192, start = 0
>
>
> # /sbin/hdparm -tT /dev/hda
>
> /dev/hda:
> Timing buffer-cache reads: 128 MB in 1.07 seconds =119.63 MB/sec
> Timing buffered disk reads: 64 MB in 2.39 seconds = 26.78 MB/sec
>
>
> 26,8 M/s sounds a bit slow to me... Is it? How do I know if I
> need an UDMA
> patch for my kernel (I'm using the standard 2.2.17 now)? Is
> there any other
> way I could tweak my drive to make it transfer bits faster?
>
> Regards,
> Peter
>
>
>
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