Kernel boot/options question

Cub69 · 2006-08-30 14:09:55

I'm booting the kernel-beyond. My kernel command line is as follows:
Kernel command line: root=/dev/hda2 pci=assign-busses idebus=100 ro

When my system is booting I see this:
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

And further down with the IDE drives:
hda: max request size: 128KiB
hda: 195371568 sectors (100030 MB) w/8192KiB Cache, CHS=65535/16/63, UDMA(100)
hda: cache flushes supported
hda: hda1 hda2 hda3 hda4 <hda5>

Does this mean I'm actually using UDMA 100?? My hdparm -tT /dev/hda returns:
/dev/hda:
Timing cached reads: 2000 MB in 2.00 seconds = 999.99 MB/sec
Timing buffered disk reads: 86 MB in 3.03 seconds = 28.34 MB/sec

I would think my buffered disk reads would be higher then that. Any suggestions or am I already as fast as I'm going to get?

Norm

brazzmonkey · 2006-08-30 14:37:00

what's the output of hdparm -i /dev/hda ?

Cub69 · 2006-08-30 15:17:27

This is what I get with hdparm -i /dev/hda

/dev/hda:

Model=FUJITSU MHU2100AT, FwRev=00000008, SerialNo=NQ07T5128E90
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=195371568
IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6

* signifies the current active mode

Arch Linux

#1 2006-08-30 14:09:55

Kernel boot/options question

#2 2006-08-30 14:37:00

Re: Kernel boot/options question

#3 2006-08-30 15:17:27

Re: Kernel boot/options question

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