Date: Tue, 18 Jan 2005 15:11:43 -0600 From: Astrodog <astrodog@gmail.com> To: Ganael Laplanche <ganael.laplanche@martymac.com>, freebsd-amd64@freebsd.org Subject: Re: Asus K8N-E and slow disk transfer Message-ID: <2fd864e05011813114d470c14@mail.gmail.com> In-Reply-To: <20050106165128.M36915@martymac.com> References: <20050105172443.M43967@martymac.com> <41DC2AEE.9090805@bredband.net> <20050106165128.M36915@martymac.com>
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On Thu, 6 Jan 2005 16:52:35 +0000, Ganael Laplanche <ganael.laplanche@martymac.com> wrote: > Hi, >=20 > Thank you for you answer :) >=20 > I have a new 80 lead ATA cable (a brand new provided with my mobo) and my= disk > is a single device on the channel (no slave)... >=20 > Any (other) idea ? >=20 > Gana=EBl LAPLANCHE > ganael.laplanche@martymac.com > http://www.martymac.com > Tel : (+33)6.84.03.57.24. >=20 > ---------- Original Message ----------- > From: Lars Tunkrans <lars.tunkrans@bredband.net> > To: Ganael Laplanche <ganael.laplanche@martymac.com> > Cc: freebsd-amd64@freebsd.org > Sent: Wed, 05 Jan 2005 18:59:10 +0100 > Subject: Re: Asus K8N-E and slow disk transfer >=20 > > Ganael Laplanche wrote: > > > Hi all, > > > > > > I've just bought an ASUS K8N-E mobo. I'm using FreeBSD-5.3-Stable (am= d64) and > > > suffering from *very* slow disk transfer rates. The chipset is an nfo= rce3 and is > > > correctly detected at boot : > > > > > > # dmesg > > > [...] > > > atapci0: <nVidia nForce3 Pro UDMA133 controller> port > > > 0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 8.0 on pc= i 0 > > > [...] > > > > > > My disk is an UDMA100 one, everything seems to be correct : > > > # atacontrol mode 0 > > > Master =3D UDMA100 > > > Slave =3D BIOSPIO > > > > > > > If you have a New and an OLD disk on the same ATA chanell ; > > Do you have an old 40 lead or an new 80 lead ATA cable ? > > > > 80 lead cable is a requirement f=F6r UDMA100 ! > > > > //Lars > ------- End of Original Message ------- > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org" >=20 This may be a potential NForce3 Compatibility Issue. You may try using atacontrol to force the "slave" to UDMA100 as well. Also, at 11MB/s, its above the rate I'd expect to see if it was using PIO (Though, I may easily be wrong on that). Also, if you're copying from the disk, to the same disk, keep in mind, 11MB/s apparent, is 22MB/s of disc I/O. What kind of CPU usage do you see during the copy? (time, uptime, and vmstat output would be helpful) --- Harrison Grundy
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