Re: ICH7: ata_piix twice as fast as ahci?

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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.
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