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[Xen-devel] Re: events/0 and xenconsoled wakeups

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: [Xen-devel] Re: events/0 and xenconsoled wakeups
From: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
Date: Thu, 31 Mar 2011 14:19:09 +0200
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Hello Jeremy,

Tuesday, March 29, 2011, 11:14:04 PM, you wrote:

> On 03/25/2011 03:28 PM, Sander Eikelenboom wrote:
>> Hi Jeremy,
>>
>> Is this thing still on your list ?
>> http://www.gossamer-threads.com/lists/linux/kernel/1281515
>>
>> Ran powertop today, and events/0 and xenconsoled seem to be still 
>> responsible for the majority of wakeups.

> Yeah.  Unfortunately the underlying bug is a design error in the tty
> subsystem, which will be hard to fix.  However, the one-liner fix can
> mitigate the problem and reduce the wakeups to 100Hz.

> Also, attaching a console to the various hvcs will also fix it.

Consoles of guests ?
Could you give a example of how to do it ?


>     J



-- 
Best regards,
 Sander                            mailto:linux@xxxxxxxxxxxxxx


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