[LUGOS] Re: Asus P4R8L motherboard in UDMA

[Andrej Trobentar]

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Andrej Trobentar wrote:
| Pozdrav,
|
| Imam zgoraj omenjeno osnovno plošč o v ra unalniku Pundit-R
| (http://www.asus.com/prog/spec.asp?m=Pundit-R&langs=01) in gor naložen
| RH 7.3, kernel 2.4.27. Ugotovil sem, da mi disk ne dela v UDMA nač inu,
| zato sem prvo preveril setup (BIOS) :
|
| Device       : Hard disk
| Vendor       : ExcelStor Technology J680
| Size         : 82,3 GB
| LBA Mode     : supported
| Block Mode   : 16sectors
| PIO mode     : 4
| Async DMA    : MultiWord DMA-2
| Ultra DMA    : Ultra DMA-5
| SMART monit. : Supported
|
| Torej bil disk moral delati v UDMA na inu. Ko zbootam linux in napišem
| dmesg nikjer ne zasledim UDMA string-a, prav tako "hdparm /dev/hda"
| pokaže :
|
| /dev/hda:
| ~ multcount    = 16 (on)
| ~ I/O support  =  0 (default 16-bit)
| ~ unmaskirq    =  0 (off)
| ~ using_dma    =  0 (off)
| ~ keepsettings =  0 (off)
| ~ nowerr       =  0 (off)
| ~ readonly     =  0 (off)
| ~ readahead    =  8 (on)
| ~ geometry     = 10011/255/63, sectors = 160836480, start = 0
| ~ busstate     =  1 (on)
|
| Če poizkušam vklopiti DMA z "hdparm -d1 /dev/hda" dobim :
|
| /dev/hda:
| ~ setting using_dma to 1 (on)
| ~ HDIO_SET_DMA failed: Operation not permitted
| ~ using_dma    =  0 (off)
|
| Kaj moram vključ iti v kernelu, da mi bo disk delal malo hitreje? :D
|
| "hdparm -tT /dev/hda" da sedaj takšne mizerne rezultate :
|
| /dev/hda:
| ~ Timing buffer-cache reads:   128 MB in  0.30 seconds =426.67 MB/sec
| ~ Timing buffered disk reads:  64 MB in 26.83 seconds =  2.39 MB/sec

Res nima nobeden kakšne ideje? :)

- --
Lep pozdrav,

	Andrej.

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