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SubjectRe: Network performance degradation from 2.6.11.12 to 2.6.16.20


On Tue, 4 Jul 2006, Andi Kleen wrote:

> On Tuesday 04 July 2006 13:41, Jesper Dangaard Brouer wrote:
>>
>> Actually the change happens between kernel version 2.6.15 and 2.6.16.
>
> The timestamp optimizations are older. Don't remember the exact release,
> but earlier 2.6.

What I'm saying is that, with the same Config file, some Kconfig option
changed between 2.6.15 and 2.6.16, that made my system use pmtmr for high-res
timesource instead of TSC.


>> And
>> is a result of Andi's changes to arch/x86_64/Kconfig and
>> drivers/acpi/Kconfig, which "allows/activates" the use of the timer on
>> x86_64.
>
> Not sure what you mean here?

I think, that the changes you made to the files "arch/x86_64/Kconfig" and
"drivers/acpi/Kconfig", caused this change...

commit: e78256b8f3e2850ad55c2d69e1429e6c2607afd3

http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.17.y.git;a=commitdiff;h=e78256b8f3e2850ad55c2d69e1429e6c2607afd3

and maybe
commit: 2eb1bdbad89b19c99f8ac1de1492cdabbff6b3d3

http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.17.y.git;a=commitdiff;h=2eb1bdbad89b19c99f8ac1de1492cdabbff6b3d3


Hilsen
Jesper Brouer

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