SATA is to slow comparing with linux

[Robert Noland]

On Wed, 2009-09-30 at 13:17 +0200, Oliver Lehmann wrote:
> Robert Noland writes: 
> 
> > On Wed, 2009-09-30 at 09:53 +0200, Oliver Lehmann wrote:
> >> I got a Promise SATA300 TX2plus instead. I'll rune some tests with later 
> >> (when I'm back home ;))
> > 
> > I would also be curious how that ahci driver from -CURRENT is performing
> > relative to other implementations.
> 
> So there is a new driver - never heard about ahci ;)
> Is it sufficient to boot 8.0-RC1 livefs? It looks like ahci is not included 
> in GENERIC so I have to load the module in the 2nd bootloader I guess. 
> Something else like disabling the old ata driver? Or will the new driver be 
> used automatically. I was not sure about the man page what "this one" means 
> (the ataahci or the ahaci?): 
> 
>      AHCI hardware is also supported by ataahci driver from ata(4) 
> subsystem.
>      If both drivers are loaded at the same time, this one will be given
>      precedence as the more functional of the two.

If the ahci driver is loaded via loader.conf it will override that ata
driver.  The ahci driver is being actively worked on, so I'm not certain
how much of the new code is in RC1, but that is a start.

robert.

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-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD