On 03/26/2014 02:31 PM, 嵌入式工程师 wrote:
I actually don't know  if it caused by rt_pipe ,in user layer i used Qt and Qt 
call large quantity rt_pipe

I doubt very much QT uses rt_pipes, unless you modified it to do so. From the latencies below, I would say you are not running with the kernel from the git branch I indicated.

--
                                            Gilles.

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