On Sun, 17 Feb 2008 16:41:42 +0100 Joris <joris@xxxxx> wrote: > Hello List, > > Odd problem on my machines: the sata disks appear to be a lot slower > when used via ata_piix vs the ahci driver. I would expect that. AHCI allows the use of NCQ and unloads a ton of work from the processor. It also means you pretty much avoid the inter command latency that limits standard IDE performance. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html