Messages in this thread | | | Date | Wed, 24 Feb 1999 22:39:03 -0500 (EST) | From | Greg <> | Subject | Re: UDMA Support for ALI1543? |
| |
On Wed, 24 Feb 1999, Andrzej Krzysztofowicz wrote:
> > > Look at Andre's homepage: > > > > > > http://www.dyer.vanderbilt.edu/server/udma/ > > > > I took a look at it and grabbed the patch, but I didn't see any reference > > to the ALI 15xx series chips. The patch only appears to address ALI 14xx > > series chips. > > The patch does nothing with ALI 14xx. It supports ALI 15xx called Aladdin. > ALI 14xx is old and even does not support UDMA > However the patch does almost nothing for you if your BIOS does set your > chipset properly basing on CMOS settings...
I patched w/ 2.2.2-ac1 and your 2.2.2-uniorm ide patch and rebuilt the kernel. When I boot, I get the following in dmesg;
ALI15X3: IDE controller on PCI bus 00 dev 78 ALI15X3: not 100% native mode: will probe irqs later ALI15X3: enabled read of IDE channels state (en/dis-abled) Succeeded. ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio hda: Maxtor 90576D4, ATA DISK drive hdb: TOSHIBA CD-ROM XM-6402B, ATAPI CDROM drive hdc: WDC AC21600H, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: Maxtor 90576D4, 5495MB w/256kB Cache, CHS=700/255/63, (U)DMA hdc: WDC AC21600H, 1549MB w/128kB Cache, CHS=3148/16/63, DMA hdb: ATAPI 32X CD-ROM drive, 256kB Cache Uniform CDROM driver Revision: 2.52
Here's my results using hdparm.
2.2.1-ac6 (Standard IDE Driver)
Timing buffered disk reads: 64 MB in 9.44 seconds = 6.78 MB/sec Timing buffered disk reads: 64 MB in 9.43 seconds = 6.79 MB/sec Timing buffered disk reads: 64 MB in 9.44 seconds = 6.78 MB/sec Timing buffered disk reads: 64 MB in 9.51 seconds = 6.73 MB/sec Timing buffered disk reads: 64 MB in 9.39 seconds = 6.82 MB/sec
2.2.2-ac1-uniform-ide
Timing buffered disk reads: 64 MB in 8.09 seconds = 7.91 MB/sec Timing buffered disk reads: 64 MB in 8.13 seconds = 7.87 MB/sec Timing buffered disk reads: 64 MB in 8.12 seconds = 7.88 MB/sec Timing buffered disk reads: 64 MB in 8.33 seconds = 7.68 MB/sec Timing buffered disk reads: 64 MB in 10.19 seconds = 6.28 MB/sec
So.. there is most definitly an improvement. Got any suggestions for a better disk speed suite than "hdparm"?
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |