On Tue, May 17, 2005 at 10:34:23PM +0200, Hans Ottevanger wrote: > Amandeep wrote: > > [... dmesg snipped ...] > > >A > >Eric Anderson wrote: > > > >>Amandeep wrote: > >> > >>>Hi all, > >>> > >>>I am using Tyan S2098 MB with 160GB Maxtor ATA Drive and the > >>>transfer rate is very low. FreeBSD 5.3-Release. > >>>Any ideas what is going on here. > >>> > >>>The transfer rate is about 15MB/s > >>> > >>>when I run > >>>#dd if=/dev/zero of=/usr/junk bs=8192 > >>> > >>>then do > >>>#iostat 1 > >> > > > Hi, > > I had practically the same problem, i.e. the same very low ATA write > speed, with very similar hardware (ASUS P533-E, same chipset and CPU as > yours). This occurred with both 5.3-STABLE and 5.4-STABLE. > > I found that the problem disappears when I disable atapi_dma in the > loader (or with 5.4, do not enable it). Alternatively, I can use > "atacontrol mode 0 UDMA100" to force the ATA channel for the harddisk to > UDMA100. I do not know why this works though, I still need some closer > investigation. Something weird in the ATA driver must be going on. > > Anyhow, my HDD (WD-1200JB) is up-to-speed now, -45Mbytes/s reading AND > writing. >
Same here, along with the random crashes around the time periodic runs which was posted the other day. We are getting all these problems with 5.4-R with the ATA mkIII patches applied also. Will test the atacontrol command and see what happens! -- Jamie Heckford Network Manager Trident Microsystems Ltd. t: +44(0)1737-780790 f: +44(0)1737-771908 w: http://www.tridentmicrosystems.co.uk/ _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
