Hi Oliver,
[Adding linux-ide to CC]
On 26/08/07, Oliver Janscheidt <[email protected]> wrote:
> Hi,
>
> I'm using a Lenovo Thinkpad with TOSHIBA MK1234GS HD and MATSHITA
> DVD-RAM UJ-850 on 82801GBM/GHM (ICH7 Family) Serial ATA Storage
> Controller IDE. The Kernel is a 2.6.22.1 from Kernel.org (with 2.6.23-rc1-
> and hdaps-queue-freezing-patch).
Could you try 2.6.23-rc3-git10?
>
> sudo hdparm -t /dev/scd0 gives
>
> Timing buffered disk reads: 2 MB in 4.47 seconds = 457.75 kB/sec
Are you using cracked cd/dvd?
cracked dvd
/sbin/hdparm -t /dev/scd0
/dev/scd0:
Timing buffered disk reads: 2 MB in 6.36 seconds = 321.78 kB/sec
new shiny dvd
/sbin/hdparm -t /dev/scd0
/dev/scd0:
Timing buffered disk reads: 14 MB in 3.14 seconds = 4.46 MB/sec
>
> sudo hdparm -t /dev/sda gives
>
> Timing buffered disk reads: 102 MB in 3.04 seconds = 33.51 MB/sec
I've got an old Maxtor HDD (also 5,400 rpm) results are similar.
>
> which is a quite poor performance and makes any streaming impossible.
> Obviously UDMA is working correctly as dmesg | grep UDMA says:
>
> [ 43.636590] ata1: SATA max UDMA/133 cmd 0xffffc20004612500 ctl
> 0x0000000000000000 bmdma 0x0000000000000000 irq 314
> [ 43.636595] ata2: SATA max UDMA/133 cmd 0xffffc20004612580 ctl
> 0x0000000000000000 bmdma 0x0000000000000000 irq 314
> [ 43.636599] ata3: SATA max UDMA/133 cmd 0xffffc20004612600 ctl
> 0x0000000000000000 bmdma 0x0000000000000000 irq 314
> [ 43.636603] ata4: SATA max UDMA/133 cmd 0xffffc20004612680 ctl
> 0x0000000000000000 bmdma 0x0000000000000000 irq 314
> [ 44.177980] ata1.00: ATA-7: TOSHIBA MK1234GSX, AH002E, max UDMA/100
> [ 44.179192] ata1.00: configured for UDMA/100
> [ 44.326918] ata5: PATA max UDMA/133 cmd 0x00000000000101f0 ctl
> 0x00000000000103f6 bmdma 0x0000000000011880 irq 14
> [ 44.326922] ata6: PATA max UDMA/133 cmd 0x0000000000010170 ctl
> 0x0000000000010376 bmdma 0x0000000000011888 irq 15
> [ 44.571970] ata5.00: ATAPI: MATSHITADVD-RAM UJ-850, RB01, max UDMA/33
> [ 44.738552] ata5.00: configured for UDMA/33
> [ 0.610332] ata5.00: configured for UDMA/33
> [ 0.750296] ata1.00: configured for UDMA/100
>
> Is there any solution for that problem or at least a workaround?
>
> I also tried to recompile the kernel as recommended in the official
> libata-faq ( http://linux-ata.org/faq.html ) but the system stuck when
> booting the root-partition. Booting with combined_mode=libata or
> combined_mode=ide didn't affect the performance, too.
>
> Thanks in advance,
>
> Oli
>
Regards,
Michal
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