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authorIngo Molnar <mingo@elte.hu>2009-08-25 10:04:27 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-25 10:04:32 +0200
commitdaedc71836e5a398fd0cc0e12c5cb43539478485 (patch)
treec56567a92017679e57195cef992d4a5561c20e0e /init/Kconfig
parentc36ba80ea01d0aecb652c26799a912e760ce8981 (diff)
parent422bef879e84104fee6dc68ded0e371dbeb5f88e (diff)
Merge commit 'v2.6.31-rc7' into irq/core
Merge reason: move from an -rc2 base to -rc7. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'init/Kconfig')
-rw-r--r--init/Kconfig13
1 files changed, 11 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 1ce05a4cb5f..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"
- depends on PERF_COUNTERS && EVENT_TRACER
+ 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.)
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