On Mon, Mar 24, 2003 at 07:13:06AM -0500, Alan Cox wrote:
> > Recently I tried to figure out in 2.5.65, why throughput on my disk which
> > hangs on Silicon Image 680 dropped to 1/4 compared to 2.4.21-pre5, but didn't
> > found anything useful. Are there any known issues with this driver?
>
> The same code in both cases. Its quite likely the problem is higher up in
> the block or filesystem layer. It might also be a general IDE layer bug
>
> What does performance look like on your other disk between
> 2.4.21pre/2.5.65 ?
Will test it as I come back home (it's on my home machine). But I think this
performance drop is only on the SiI680 interface.
On Mon, Mar 24, 2003 at 09:44:38AM -0800, Andre Hedrick wrote:
> There should be a mode or a flag option in the siimage.h to disable MMIO
> by default. I am courious if this is a BARRIER on the read/write screwing
> the pooch!
Back in late 2.5.4x (or was it early 2.5.5x ?) I tried
#undef CONFIG_TRY_MMIO_SIIMAGE but nothing has changed (now there's no such
symbol defined in siimage.c - gone in 2.5.63).
Cheers,
Vita
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Mar 31 2003 - 22:00:19 EST