Subject: Re: Please Revert newlock2
To: None <>
From: Jason Thorpe <>
List: tech-kern
Date: 02/20/2007 14:26:01
On Feb 18, 2007, at 11:28 AM, Thomas E. Spanjaard wrote:

> Bucky Katz wrote:
>> Thor Lancelot Simon <> writes:
>>> 2) Either cause them to perform acceptably for your application,  
>>> or else
>>>   endeavor to get M:N back in a supported state for uniprocessors.
>> It has to be the later. The context switch overhead of 1:1 on ARM  
>> will
>> cause a severe performance degradation.
> Doesn't OMAP support the v4/v5 hyped fast address space switching?

That doesn't matter when you're switching within the same address space.

Anyway, if there are performance problems with context switching on  
ARM, then those should be addressed independently.

-- thorpej