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| author | jolsa@redhat.com <jolsa@redhat.com> | 2009-10-13 16:33:52 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-14 08:13:53 +0200 |
| commit | 756d17ee7ee4fbc8238bdf97100af63e6ac441ef (patch) | |
| tree | d0b794f4964be5689fc1bd64302969405000e18b /kernel/trace/ring_buffer_benchmark.c | |
| parent | 194ec34184869f0de1cf255c924fc5299e1b3d27 (diff) | |
| download | blackbird-op-linux-756d17ee7ee4fbc8238bdf97100af63e6ac441ef.tar.gz blackbird-op-linux-756d17ee7ee4fbc8238bdf97100af63e6ac441ef.zip | |
tracing: Support multiple pids in set_pid_ftrace file
Adding the possibility to set more than 1 pid in the set_pid_ftrace
file, thus allowing to trace more than 1 independent processes.
Usage:
sh-4.0# echo 284 > ./set_ftrace_pid
sh-4.0# cat ./set_ftrace_pid
284
sh-4.0# echo 1 >> ./set_ftrace_pid
sh-4.0# echo 0 >> ./set_ftrace_pid
sh-4.0# cat ./set_ftrace_pid
swapper tasks
1
284
sh-4.0# echo 4 > ./set_ftrace_pid
sh-4.0# cat ./set_ftrace_pid
4
sh-4.0# echo > ./set_ftrace_pid
sh-4.0# cat ./set_ftrace_pid
no pid
sh-4.0#
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20091013203425.565454612@goodmis.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/ring_buffer_benchmark.c')
0 files changed, 0 insertions, 0 deletions
