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Commit 470a1396 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar
Browse files

tracing, perf_counter: Add help text to CONFIG_EVENT_PROFILE 



Explain what tracepoint profiling sources are about.

Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: default avatarJeff Garzik <jeff@garzik.org>
LKML-Reference: <1248856508.6987.3041.camel@twins>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 2d1b6949

init/Kconfig

+9 −1
Original line number Diff line number Diff line
@@ -961,9 +961,17 @@ 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.)



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