Dear Ingo, I found typo about the range of static priority ( = realtime priority ) in "./Documentation/scheduler/sched-rt-group.txt" file. If I don't understand static priority levels, Correct me. commit d6af702008117ca489a2f5476239d1688a517e98 Author: GeunSik,Lim <leemgs1@xxxxxxxxx> Date: Tue May 12 17:20:32 2009 +0900 sched: fix typo in sched-rt-group.txt file Fix typo about static priority's range. Kernel Space priority: 0 to 99 --> User Space RT priority 99 to 0 Kernel Space priority: 100 to 139 --> User Space nice -20 to 19 Signed-off-by: GeunSik Lim <geunsik.lim@xxxxxxxxxxx> diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index 5ba4d3f..1537146 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -169,7 +169,7 @@ get their allocated time. Implementing SCHED_EDF might take a while to complete. Priority Inheritance is the biggest challenge as the current linux PI infrastructure is geared towards -the limited static priority levels 0-139. With deadline scheduling you need to +the limited static priority levels 0-99. With deadline scheduling you need to do deadline inheritance (since priority is inversely proportional to the deadline delta (deadline - now). ----------------------------------------------- To unsubscribe from this list: send the line "unsubscribe linux-***" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ GeunSik Lim (ELS - OS Group - S/W Lab - SAIT - SAMSUNG) e-Mail :1) geunsik.lim@xxxxxxxxxxx 2) leemgs@xxxxxxxxx , leemgs1@xxxxxxxxx HomePage: http://intomail.dnip.net/invain/me/ -----------------------------------------------
commit d6af702008117ca489a2f5476239d1688a517e98 Author: GeunSik,Lim <leemgs1@xxxxxxxxx> Date: Tue May 12 17:20:32 2009 +0900 sched: fix typo in sched-rt-group.txt file Fix typo about static priority's range. Kernel Space priority: 0 to 99 --> User Space RT priority 99 to 0 Kernel Space priority: 100 to 139 --> User Space nice -20 to 19 Signed-off-by: GeunSik Lim <geunsik.lim@xxxxxxxxxxx> diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index 5ba4d3f..1537146 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -169,7 +169,7 @@ get their allocated time. Implementing SCHED_EDF might take a while to complete. Priority Inheritance is the biggest challenge as the current linux PI infrastructure is geared towards -the limited static priority levels 0-139. With deadline scheduling you need to +the limited static priority levels 0-99. With deadline scheduling you need to do deadline inheritance (since priority is inversely proportional to the deadline delta (deadline - now).