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author | GeunSik Lim <leemgs1@gmail.com> | 2009-05-28 10:36:11 +0900 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-29 16:21:08 +0200 |
commit | 294ae4011530d008c59c4fb9847738e39228821e (patch) | |
tree | f34f000e0bc1066140bbbc090fa624cb96cfb44c /Documentation/scheduler | |
parent | 4200efd9acda4accf24640f1e77d24fdcdb524df (diff) | |
download | linux-294ae4011530d008c59c4fb9847738e39228821e.tar.gz linux-294ae4011530d008c59c4fb9847738e39228821e.tar.bz2 linux-294ae4011530d008c59c4fb9847738e39228821e.zip |
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>
Diffstat (limited to 'Documentation/scheduler')
0 files changed, 0 insertions, 0 deletions