diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-08-09 12:46:45 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-09 12:46:49 +0200 |
| commit | e3560336be655c6791316482fe288b119f34c427 (patch) | |
| tree | 43ca9a6b489aaa3918b773f78a7eda37458ef0a8 /init | |
| parent | 26528e773ecc74fb1b61b7275f86f761cbb340ec (diff) | |
| parent | 7b2aa037e878c939676675969983284a02958ae3 (diff) | |
Merge branch 'linus' into tracing/urgent
Merge reason: Merge up to almost-rc6 to pick up latest perfcounters
(on which we'll queue up a dependent fix)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index cb2c0927022..3f7e60995c8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -940,6 +940,7 @@ menu "Performance Counters" config PERF_COUNTERS bool "Kernel Performance Counters" + default y if PROFILING depends on HAVE_PERF_COUNTERS select ANON_INODES help @@ -961,9 +962,17 @@ config PERF_COUNTERS Say Y if unsure. config EVENT_PROFILE - bool "Tracepoint profile sources" + bool "Tracepoint profiling sources" depends on PERF_COUNTERS && EVENT_TRACING default y + help + Allow the use of tracepoints as software performance counters. + + When this is enabled, you can create perf counters based on + tracepoints using PERF_TYPE_TRACEPOINT and the tracepoint ID + found in debugfs://tracing/events/*/*/id. (The -e/--events + option to the perf tool can parse and interpret symbolic + tracepoints, in the subsystem:tracepoint_name format.) endmenu |