On 04/22/2013 09:55 PM, Marc Kleine-Budde wrote:
[...]
>>> This resulted in
>>> f23eb2b2b28547fc70df82dd5049eb39bec5ba12
>>> tty: stop using "delayed_work" in the tty layer
>>>
>>> as possible cause. Reverting this commit by hand in v3.8 showed a load
>>> distribution
>>> similar
On 04/22/2013 09:55 PM, Marc Kleine-Budde wrote:
[...]
This resulted in
f23eb2b2b28547fc70df82dd5049eb39bec5ba12
tty: stop using delayed_work in the tty layer
as possible cause. Reverting this commit by hand in v3.8 showed a load
distribution
similar to 2.6.38.
What I
(resent without attached scope screen shots)
On 04/08/2013 05:06 PM, Greg Kroah-Hartman wrote:
> On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
>> Hi!
>>
>> I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+ load
>> on the serial connection causes a 10-15%
(resent without attached scope screen shots)
On 04/08/2013 05:06 PM, Greg Kroah-Hartman wrote:
On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
Hi!
I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+ load
on the serial connection causes a 10-15% increase
On Mon, Apr 08, 2013 at 08:06:11AM -0700, Greg Kroah-Hartman wrote:
> On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
> > Hi!
> >
> > I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+
> > load
> > on the serial connection causes a 10-15% increase in
On Mon, Apr 08, 2013 at 08:06:11AM -0700, Greg Kroah-Hartman wrote:
On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
Hi!
I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+
load
on the serial connection causes a 10-15% increase in system/userspace
On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
> Hi!
>
> I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+ load
> on the serial connection causes a 10-15% increase in system/userspace load.
> This doesn't change up to v3.9-rc4.
>
> The following setup
On Mon, Apr 08, 2013 at 11:25:58AM +0200, Steffen Trumtrar wrote:
Hi!
I noticed a problem with the tty subsystem on ARM. Starting with 2.6.38+ load
on the serial connection causes a 10-15% increase in system/userspace load.
This doesn't change up to v3.9-rc4.
The following setup was used:
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