* [Xenomai-core] userspace applications and cache
@ 2009-04-30 22:09 Steven Seeger
2009-04-30 22:15 ` Gilles Chanteperdrix
0 siblings, 1 reply; 2+ messages in thread
From: Steven Seeger @ 2009-04-30 22:09 UTC (permalink / raw)
To: xenomai
If a userspace application running xenomai threads is large (1MB or
so) then the code can't all live in cache on our puny 16kb instruction
cache. Does the cache handling occur as needed in the primary domain
or does it have to wait for Linux to handle it?
Thanks,
Steven
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Xenomai-core] userspace applications and cache
2009-04-30 22:09 [Xenomai-core] userspace applications and cache Steven Seeger
@ 2009-04-30 22:15 ` Gilles Chanteperdrix
0 siblings, 0 replies; 2+ messages in thread
From: Gilles Chanteperdrix @ 2009-04-30 22:15 UTC (permalink / raw)
To: Steven Seeger; +Cc: xenomai
Steven Seeger wrote:
> If a userspace application running xenomai threads is large (1MB or
> so) then the code can't all live in cache on our puny 16kb instruction
> cache. Does the cache handling occur as needed in the primary domain
> or does it have to wait for Linux to handle it?
You should use the I-pipe tracer, it will tell you exactly what happens
on your system.
--
Gilles.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-04-30 22:09 [Xenomai-core] userspace applications and cache Steven Seeger
2009-04-30 22:15 ` Gilles Chanteperdrix
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