Kernel configuration options

John Richard Moser nigelenki at comcast.net
Wed Jan 2 13:17:34 EST 2008



Mitch Bradley wrote:
> John Richard Moser wrote:
>> Bernardo Innocenti wrote:
>>  
>>> Tom Sylla wrote:
>>>
>>>    
[...]
>> The Geode GX has 64 TLB entries right?  I don't know how many the 
>> Geode LX has, or if there's an L2 TLB.  Obviously, though, this would 
>> be a major performance boon, what with there being (assuming 24MiB of 
>> vram) 5 probably often used mappings instead of 5120 in an often-used 
>> set with a probably uneven distribution.
>>   
> 
> The magnitude of the performance benefit is not at all obvious.  The 
> Geode's graphics accelerator uses physical addressing.
> 

But X doesn't.  I was more thinking from the POV of X11 writing 
textures/icons into it, which when you switch applications may or may 
not wind up running all over the place and stamping out 20-30 TLB 
entries.  I'm still not sure how it works.

> 
>>  
>>> But I must confess I have limited understanding of the Geode
>>> architecture, so I may be overlooking something.
>>>
>>>     
>>
>>   
> 
> 

-- 
Bring back the Firefox plushy!
http://digg.com/linux_unix/Is_the_Firefox_plush_gone_for_good
https://bugzilla.mozilla.org/show_bug.cgi?id=322367



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