Re: ICH5 with 2.6.1 very slow

[Kyle]

Yes I read the thread and re-compile with IDEDMA_IVB= y, got some
performance back, but is still far slower than 2.4

----- Original Message ----- 
From: "Jamie Lokier" <jamie@xxxxxxxxxxxxx>
To: "Kyle" <kyle@xxxxxxxxxx>
Cc: "Bas Mevissen" <ml@xxxxxxxxxxxxxx>; <linux-kernel@xxxxxxxxxxxxxxx>
Sent: Thursday, February 12, 2004 4:41 PM
Subject: Re: ICH5 with 2.6.1 very slow


> Kyle wrote:
> > Today I tried with compile the kernel 2.6.1 with:
> >
> > IGNORE word93 Validation BITS (IDEDMA_IVB) = y
> >
> > The result looks a bit better, got 30MB/s at /dev/hda and 37MB/s at
/dev/hdc
> > (38MB/s and 55MB/s at kernel 2.4.20)
>
> Aha...
>
> Have a look at the thread called "[RFC] IDE 80-core cable detect -
> chipset-specific code to over-ride eighty_ninty_three()".
>
> It specifically deals with ICH5 and is probably the same problem as
> you're seeing.
>
> -- Jamie
>

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