Re: loading EHCI_HCD slows down IDE disk performance by 50%

From: Alessandro Suardi
Date: Sun Oct 29 2006 - 14:52:43 EST


On 10/29/06, Lee Revell <rlrevell@xxxxxxxxxxx> wrote:
On Sun, 2006-10-29 at 19:13 +0100, Alessandro Suardi wrote:
> Any hints/tips about what to try with this issue will be
> of course very welcome.

git bisect

As I clarified to Lee in private email, this method doesn't
seem to apply in this situation, as the problem appeared
when I selected CONFIG_EHCI_HCD in my build due to the
purchase of the USB2.0 disk, back in the 2.6.16-rc cycle;
so if the combination of high performance IDE + EHCI_HCD
ever existed, it must be earlier than 2.6.16-rc5-git8.

Lacking any input I'll try to find out more in the next week
by starting out at 2.6.10 and eventually earlier.

Thanks, ciao,

--alessandro

"...when I get it, I _get_ it"

(Lara Eidemiller)
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