Theodore Ts'o wrote: > On Tue, Jun 17, 2003 at 07:30:34PM +0200, Juri Haberland wrote: >> Well, this would mean to recompile the kernel, which shouldn't be >> necessary IMO. >> >> Usually the following line gives me maximum performance: >> >> hdparm -d1 -c3 -m16 -u1 -a64 -A1 (and possibly -W1, but it could be >> dangerous especially wiht journalled FS). > > What about the hdparm -X parameters for Ultra-DMA setup? My > understanding is that the DMA-chipset specific codes would set these > correctly if necessary, but I'm not sure I'd want to mess with them > myself. (Again, this is why outside my area of expertise; all of the This is also my understanding. If your chipset is well supported, the driver should set up your controller and your devices to the maximum [U]DMA speed, but it may not actually activate the DMA transfer and falls back to PIO. > Linux developers who spends too much time working in the IDE space > seems to go insane, and I want to avoid that outcome. :-) No comment ;) Juri _______________________________________________ Ext3-users@redhat.com https://www.redhat.com/mailman/listinfo/ext3-users
