Messages in this thread | | | From | "Carlos Fernandez Sanz" <> | Subject | Re: HighPoint 374 | Date | Mon, 20 Oct 2003 19:02:00 +0200 |
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BTW, isn't m0 supposed to reduce perfomance?
[root@fulanito wd1200jb]# time dd if=/dev/zero of=filling count=20000 bs=65536 20000+0 records in 20000+0 records out
real 0m33.763s user 0m0.200s sys 0m10.920s [root@fulanito wd1200jb]# hdparm -m4 /dev/hdk
/dev/hdk: setting multcount to 4 multcount = 4 (on) [root@fulanito wd1200jb]# time dd if=/dev/zero of=filling count=20000 bs=65536 20000+0 records in 20000+0 records out
real 0m30.321s user 0m0.150s sys 0m10.630s [root@fulanito wd1200jb]# hdparm -m0 /dev/hdk
/dev/hdk: setting multcount to 0 multcount = 0 (off) [root@fulanito wd1200jb]# time dd if=/dev/zero of=filling count=20000 bs=65536 20000+0 records in 20000+0 records out
real 0m30.749s user 0m0.130s sys 0m10.900s [root@fulanito wd1200jb]#
----- Original Message ----- From: "Svetoslav Slavtchev" <svetljo@gmx.de> To: "Tomi Orava" <Tomi.Orava@ncircle.nullnet.fi> Cc: <linux-kernel@vger.kernel.org> Sent: Monday, October 20, 2003 11:03 Subject: Re: HighPoint 374
> > > > > > >> Are you capable of trying if the hdparm -m0 trick > > >> works for you ? > > > > > > you mean the fs corruption on soft raid or the interupts problem ? > > > i dumped the raid setup as i couldn't find a way to debug it > > > and my drives are pretty full again, but i'll try to free some space > > > > I meant the interrupt problem, because if that problem exists > > there doesn't seem to be a reasonable way to figure out what > > is the reason for the filesystem corruption. > > > > > for the interupts > > > with test7-bk8 , acpi=off pci=noacpi & > > > hdparm -m0 -d1 -X69 /dev/hd[a,e,g] > > > hdparm -m16 -d1 -X69 /dev/hd[a,e,g] > > > i don't see timeouts > > > if i omit -m i do see them sometimes > > > > Ok, so if I understood you correctly, the interrupt problem > > persists _only_ if you leave the multiple sector setting on > > its default setting ? If you explicitly disable it, or set > > it to maximum it works fine ? Does it work with any value ? > > -m4 & -m8 seems to work OK > each time 3 runs of the dd test > 1 to hda > 2 to hde > > TCQ not activated > > > -- > NEU FÜR ALLE - GMX MediaCenter - für Fotos, Musik, Dateien... > Fotoalbum, File Sharing, MMS, Multimedia-Gruß, GMX FotoService > > Jetzt kostenlos anmelden unter http://www.gmx.net > > +++ GMX - die erste Adresse für Mail, Message, More! +++ > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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