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SubjectRe: Very slow IDE performance
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OK, got some more info here:

The kernel version is actually 2.2.5-15

The machine is an Olivetti Xana 53-120

hdparm -T /dev/hda gives 24.09 MB/sec (seems reasonable to me)

Trying various settings of hdparm -X n /dev/hda
didn't help.


/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 5
model : 2
model name : Pentium 75 - 200
stepping : 6
cpu MHz : 120.001623
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : yes
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8
bogomips : 47.82

/proc/pci:

PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 82437 (rev 2).
Medium devsel. Master Capable. Latency=32.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371FB PIIX ISA (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: Intel 82371FB PIIX IDE (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0xffa0 [0xffa1].
Bus 0, device 9, function 0:
VGA compatible controller: Trident TG 9660 / Cyber9385 (rev 211).
Medium devsel. Fast back-to-back capable. IRQ 11.
Non-prefetchable 32 bit memory at 0xff400000 [0xff400000].
Non-prefetchable 32 bit memory at 0xffbe0000 [0xffbe0000].

Some excertps from /var/log/messages:

Aug 21 21:23:51 localhost kernel: Linux version 2.2.5-15
[...]
Aug 21 21:23:51 localhost kernel: PIIX: IDE controller on PCI bus 00 dev 38
Aug 21 21:23:51 localhost kernel: PIIX: not 100% native mode: will probe irqs later
Aug 21 21:23:51 localhost kernel: PIIX: neither IDE port enabled (BIOS)
Aug 21 21:23:51 localhost kernel: PIIX: IDE controller on PCI bus 00 dev 39
Aug 21 21:23:51 localhost kernel: PIIX: not 100% native mode: will probe irqs later
Aug 21 21:23:51 localhost kernel: ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:pio, hdb:pio
Aug 21 21:23:51 localhost kernel: ide1: BM-DMA at 0xffa8-0xffaf,
BIOS settings: hdc:pio, hdd:pio
Aug 21 21:23:51 localhost kernel: hda: M1614TA, ATA DISK drive
Aug 21 21:23:51 localhost kernel: hdb: QUANTUM FIREBALL SE3.2A, ATA DISK drive
Aug 21 21:23:51 localhost kernel: hdc: GCD-R580B, ATAPI CDROM drive
Aug 21 21:23:51 localhost kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Aug 21 21:23:51 localhost atd: atd startup succeeded
Aug 21 21:23:51 localhost kernel: ide1 at 0x170-0x177,0x376 on irq 15
Aug 21 21:23:51 localhost kernel: hda: M1614TA, 1040MB w/64kB Cache, CHS=528/64/63
Aug 21 21:23:51 localhost kernel: hdb: QUANTUM FIREBALL SE3.2A, 3079MB w/80kB Cache, CHS=782/128/63
Aug 21 21:23:51 localhost kernel: hdc: ATAPI 8X CD-ROM drive, 256kB
Cache


FWIW, this machine is undeniably strange; the default RH6 boot disk
(which uses loadlin.sys ) would cause the monitor to go into
power-saving mode after loading the initrd.( I think it would continue
to boot actually, but the install process is sort of difficult this
way). Creating a lilo based boot disk worked fine.


--
I want to be like Randy.
Brian Perkins bperkins@netspace.org





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