yes, i forgot to include the link. now it goes.
http://www.ddj.com/linux-open-source/200900827
Rodrigo Amestica wrote:
Hi,
general questions from somebody who's just starting to look into the
preempt patch.
the article linked below makes direct reference to the behavior of the
preempt rt patch. The article was written in 2007. How much of that
still holds true in the current version of the patch?
I'm basically wondering about the first sentences in the abstract of
that article. The big picture seems to be rather simple: calls to
specific linux services could break the performance of a real time
task by depending on lower priority tasks to complete that service.
Does this mean that one must always be alert to which system services
are invoked during the execution of a real time task? Does the vanilla
kernel or the preempt-rt patch tries to somehow detect this condition
and alert somehow?
thanks,
Rodrigo
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