Messages in this thread | | | Date | Tue, 30 Dec 2003 01:27:15 +0000 | From | Dave Jones <> | Subject | Re: 2.6.0 performance problems |
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On Mon, Dec 29, 2003 at 07:17:23PM -0500, Thomas Molina wrote:
> > > UDMA modes: udma0 udma1 *udma2 udma3 udma4 > > > AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled > > > Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1: > > Any reason it is currently set to udma2 where it support udma4 ? > > Not really. The question was what mode the disk was running in. This is > what it defaults to. This is a laptop drive that only runs at 5400RPM. > Would changing the mode to udma4 make a dramatic difference?
It's not uncommon for a laptop to have a hard disk which supports higher DMA modes than what the IDE chipset supports. My aging Intel 440BX based VAIO has a disk in the same configuration as yours, supports udma4, but chipset only goes up to udma2.
Dave
-- Dave Jones http://www.codemonkey.org.uk - 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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