Re: lug-bg: ECS K7S5A: hdparm -Tt na 2.6.x po-bawen ot 2.4.x

[Anton Tinchev <atl@xxxxxxxxxxx>]

Doncho N. Gunchev wrote:

>    Imam ECS K7S5A v1 sys SIS735. BIOS-a e posledniq ot 2003-ta godina. Rezulta-
> tite ot 'hdparm -Tt /dev/hda' sa:
>    Sys 2.4.x na FC1:
> +-------------------------------------------------------------------------------
> | /dev/hda:
> |  Timing buffer-cache reads:   724 MB in  2.00 seconds = 362.00 MB/sec
> |  Timing buffered disk reads:  166 MB in  3.03 seconds =  54.79 MB/sec
> +-------------------------------------------------------------------------------
>    Sys 2.6.x na FC2-test1 (2.6.1 i 2.6.4):
> +-------------------------------------------------------------------------------
> | /dev/hda:
> |  Timing buffer-cache reads:   744 MB in  2.01 seconds = 370.02 MB/sec
> |  Timing buffered disk reads:  118 MB in  3.02 seconds =  39.10 MB/sec
> +-------------------------------------------------------------------------------
>
>    Igrah si s hdparm -c1 -d1 -u1 -X udma?, no edinstweniq rezultat beshe zaba-
> wqne. S hdparm -c1 -d1 -u1 -X udma5 rezultatite sa kakto i bez hdparm (wednaga
> sled boot), koito sym dal po-gore. Sys RedHat 9 si spomnqm che proizwoditelnost-
> ta beshe kato pri 2.6 qdrata ili po-zle.
>    /proc/pci (za 2.4.x i 2.6.x):
> +-------------------------------------------------------------------------------
> | PCI devices found:
> |   Bus  0, device   0, function  0:
> |     Host bridge: Silicon Integrated Systems [SiS] 735 Host (rev 1).
> |       Master Capable.  Latency=32.
> |       Non-prefetchable 32 bit memory at 0xd0000000 [0xd3ffffff].
> ...
> |   Bus  0, device   2, function  5:
> |     IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 208).
> |       Master Capable.  Latency=128.
> |       I/O at 0xff00 [0xff0f].
> +-------------------------------------------------------------------------------
>
>    dmesg na 2.4.x:
> +-------------------------------------------------------------------------------
> | Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4
> | ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> | SIS5513: IDE controller at PCI slot 00:02.5
> | SIS5513: chipset revision 208
> | SIS5513: not 100% native mode: will probe irqs later
> | SIS5513: SiS735 ATA 100 (2nd gen) controller
> |     ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:DMA, hdb:DMA
> |     ide1: BM-DMA at 0xff08-0xff0f, BIOS settings: hdc:DMA, hdd:DMA
> | hda: ST380011A, ATA DISK drive
> | blk: queue c03fe840, I/O limit 4095Mb (mask 0xffffffff)
> | ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> | hda: attached ide-disk driver.
> | hda: host protected area => 1
> | hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=9729/255/63, UDMA(100)
> +-------------------------------------------------------------------------------
>    dmesg na 2.6.x (2.6.1 i 2.6.4):
> +-------------------------------------------------------------------------------
> | Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> | ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> | SIS5513: IDE controller at PCI slot 0000:00:02.5
> | SIS5513: chipset revision 208
> | SIS5513: not 100% native mode: will probe irqs later
> | SIS5513: SiS735 ATA 100 (2nd gen) controller
> |     ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:DMA, hdb:DMA
> |     ide1: BM-DMA at 0xff08-0xff0f, BIOS settings: hdc:DMA, hdd:DMA
> | hda: ST380011A, ATA DISK drive
> | Using anticipatory io scheduler
> | ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> | hda: max request size: 1024KiB
> | hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(100)
> +-------------------------------------------------------------------------------
>
>    Gledah patchowete koito sa w src.rpm za 2.6 - nqma nishto po temata ot koeto
> si wadq izvoda che i stock 2.6 qdrata shte se dyrjat po syshtiq nachin.
>
>    Nqkoi ima li podobno powedenie i ideq kakwo sledwa da naprawq - bugreport do
> kernel/fedora ili? Daite nasoki.
>
>    Siteto za driver-a ako ne se byrkam e http://www.linux-ide.org/, a maintainer
> e 'Andre Hedrick' andre@xxxxxxxxxxxxx/ahedrick@xxxxxxxxx/andre@xxxxxxxx, right?
>
>  
Пробвай да смениш I/O Elevator-а.
2.6 не пуска целия hdd bandwidth към hdparm-а с default sheduler-а

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