From: Liam Bedford (lbedford at domain wbtsystems.com)
Date: Wed 19 May 1999 - 10:35:59 IST
In message <37427F65.ED224659 at domain hdl.ie>, Sean McGrath writes:
>
> Seening linux.com is now live, its got a tuneup page. One of
> which is hdparam's (hard disk parameters).
>
> So I tried it out on my server here.
>
>Before: (dma and 32bit are turned off, i.e. default)
> [root at domain portia:/var/log]#hdparm -t /dev/hda
>
> /dev/hda:
> Timing buffered disk reads: 16 MB in 2.39 seconds = 6.69 MB/sec
Hmm.. anyone got any suggestions for this then:
PII-300, UDMA 8.4 Gb hard drive:
(long attachment)
[root at domain doozer /root]# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 32 MB in 61.03 seconds = 0.52 MB/sec
[root at domain doozer /root]# hdparm -c 1 /dev/hda
/dev/hda:
setting 32-bit I/O support flag to 1
I/O support = 1 (32-bit)
[root at domain doozer /root]# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 32 MB in 58.98 seconds = 0.54 MB/sec
[root at domain doozer /root]# hdparm -c /dev/hda
/dev/hda:
I/O support = 1 (32-bit)
[root at domain doozer /root]# hdparm -i /dev/hda
/dev/hda:
Model=Maxtor 90840D6, FwRev=WAS8283C, SerialNo=K60A9QKA
Config={ Fixed }
RawCHS=16276/16/63, TrkSize=0, SectSize=0, ECCbytes=29
BuffType=3(DualPortCache), BuffSize=256kB, MaxMultSect=16, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=2(fast)
CurCHS=1021/255/63, CurSects=1455423738, LBA=yes, LBAsects=16406208
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
[root at domain doozer /root]# hdparm -I /dev/hda
/dev/hda:
Model=aMtxro9 80046D , FwRev=AW8S82C3,
SerialNo=6KA0Q9
AK
Config={ Fixed }
RawCHS=16276/16/63, TrkSize=0, SectSize=0, ECCbytes=29
BuffType=3(DualPortCache), BuffSize=256kB, MaxMultSect=16, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=2(fast)
CurCHS=16276/16/63, CurSects=1455423738, LBA=yes, LBAsects=16406208
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=on/off, tPIO={min:120,w/IORDY:120}, PIO modes: mode3 mode4
[root at domain doozer /root]# hdparm -u /dev/hda
/dev/hda:
unmaskirq = 0 (off)
[root at domain doozer /root]# hdparm -u 1 /dev/hda
/dev/hda:
setting unmaskirq to 1 (on)
unmaskirq = 1 (on)
[root at domain doozer /root]# hdparm -t /dev/hda
/dev/hda:
Timing buffered disk reads: 32 MB in 57.58 seconds = 0.56 MB/sec
[root at domain doozer /root]#
I'm not a hard disk optimization kinda guy, but 0.5 Mb/sec sounds slow (even
with X and stuff running (nothing accessing))
Regards
L.
-- Liam Bedford System Administrator WBT Systems Phone: 01 4170153 Block 2, Harcourt St, Dublin 2
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