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RE: [linux-team] UDMA



dois je vraiment introduire ces commandes à chaque fois ? (hdparm -c 1
/dev/hdc ...)

> -----Original Message-----
> From: vincent louviaux [mailto:vincent.louviaux@linuxbe.org]
> Sent: Monday, June 14, 1999 9:19 PM
> To: linux linuxbe; linux-team rtfm
> Subject: [linux-team] UDMA
> 
> 
> j ai le meme probleme
> pourquoi il faut l activer le UDMA ?
> dois je le mettre dans un script de démarrage
> ou kel options faut il passer au kernell pour qu il le detecte
> 
> au demarrage il dit:
> 
> ...
> VP_IDE: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0x6000-0x6007, BIOS settings: hda:pio, hdb:pio
>     ide1: BM-DMA at 0x6008-0x600f, BIOS settings: hdc:pio, hdd:pio
> hda: QUANTUM BIGFOOT_CY4320A, ATA DISK drive
> hdb: LTN262, ATAPI CDROM drive
> hdc: WDC AC34300L, ATA DISK drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: QUANTUM BIGFOOT_CY4320A, 4134MB w/67kB Cache, CHS=527/255/63
> hdc: WDC AC34300L, 4104MB w/256kB Cache, CHS=8896/15/63
> hdb: ATAPI 16X CD-ROM drive, 240kB Cache
> ...
> 
> 
> root@galaxie:/home/vincent > hdparm -t /dev/hdc
> 
> /dev/hdc:
>  Timing buffered disk reads:  32 MB in 11.27 seconds = 2.84 MB/sec
> root@galaxie:/home/vincent > hdparm -d 1 /dev/hdc
> 
> /dev/hdc:
>  setting using_dma to 1 (on)
>  using_dma    =  1 (on)
> root@galaxie:/home/vincent > hdparm -c 1 /dev/hdc
> 
> /dev/hdc:
>  setting 32-bit I/O support flag to 1
>  I/O support  =  1 (32-bit)
> root@galaxie:/home/vincent > hdparm -k 1 /dev/hdc
> 
> /dev/hdc:
>  setting keep_settings to 1 (on)
>  keepsettings =  1 (on)
> root@galaxie:/home/vincent > hdparm -t /dev/hdc
> 
> /dev/hdc:
>  Timing buffered disk reads:  32 MB in  3.70 seconds = 8.65 MB/sec
> 
> 
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