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Date: Thu, 09 Apr 2009 11:25:08 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-core] native syscalls
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To: Steven Seeger <steven.seeger@domain.hid>
Cc: xenomai@xenomai.org

Steven Seeger wrote:
> Can xenomai preempt its own system calls? We ran latency with our  
> app.  We had a thread waiting on a cond, and when we signaled that  
> cond, the latency jumped from ~70us to almost 400us even though  
> latency runs a higher priority thread than the thread that we wake up.  
> Is there interrupt disabling that accounts for this?
> 
> Here are the results as taken by Mark S.

As I told you in a voluntarily detailed private mail, only the traces
made by the I-pipe tracer are of any interest for us.

-- 
                                                 Gilles.