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authorGeunSik Lim <leemgs1@gmail.com>2009-05-28 10:36:11 +0900
committerIngo Molnar <mingo@elte.hu>2009-05-29 16:21:08 +0200
commit294ae4011530d008c59c4fb9847738e39228821e (patch)
treef34f000e0bc1066140bbbc090fa624cb96cfb44c /Documentation/scheduler
parent4200efd9acda4accf24640f1e77d24fdcdb524df (diff)
ftrace: fix typo about map of kernel priority in ftrace.txt file.
Fix typo about chart to map the kernel priority to user land priorities. * About sched_setscheduler(2) Processes scheduled under SCHED_FIFO or SCHED_RR can have a (user-space) static priority in the range 1 to 99. (reference: http://www.kernel.org/doc/man-pages/online/pages/ man2/sched_setscheduler.2.html) * From: Steven Rostedt 0 to 98 - maps to RT tasks 99 to 1 (SCHED_RR or SCHED_FIFO) 99 - maps to internal kernel threads that want to be lower than RT tasks but higher than SCHED_OTHER tasks. Although I'm not sure if any kernel thread actually uses this. I'm not even sure how this can be set, because the internal sched_setscheduler function does not allow for it. 100 to 139 - maps nice levels -20 to 19. These are not set via sched_setscheduler, but are set via the nice system call. 140 - reserved for idle tasks. Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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