[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [[linux-team] UDMA]



J'ai aussi 2HD en IDE. Le primary master est UDMA32 et le primary slave
n'est pas UDMA.

Les résultats, avant et apres l'utilisation de hdparm -d1 /dev/hda ont
comme resultats:
/dev/hda
timing buffered disk reads: 32Mb in 3.5 sec = 9.14MB/sec
/dev/hdb
timing buffered disk reads: 32Mb in 7.55 sec = 4.24MB/sec

La différence est évidente. Pourtant, lors du boot sequence, j'ai les
mêmes messages que toi:
IDE: not 100% native mode: will probe irqs later

Je n'ajoute aucun script spécial mais mon kernel est le 2.2.5.
Peut-être est-ce là la clé à ton problème?


vincent louviaux <vincent.louviaux@linuxbe.org> wrote:
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


---------
This message was sent by Majordomo 1.94.3. Please report problems to
manu@rtfm.be. If you want to be deleted from the list, send a mail to
majordomo@rtfm.be with "unsubscribe linux-team" in the body.

-- 
-------------------------------------------------------
		    Vincent Jamart
		AIX System Administrator
		    22 Log.W - XSL
		   BELGIAN AIR FORCE
		 phone: +32-(2)-701/23.49
		E-mail: JamartV@baf.mil.be
-------------------------------------------------------
"The beatings will continues until the morale improves"
---------
This message was sent by Majordomo 1.94.3. Please report problems to
manu@rtfm.be. If you want to be deleted from the list, send a mail to
majordomo@rtfm.be with "unsubscribe linux-team" in the body.