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Commit 430b7a2d authored Jul 14, 2015 by Cassidy Burden

defconfig: msm: Enable CPU frequency switch time profiling



Profile how long CPU frequency switches take. Enable/disable by echoing
a 1/0 to /sys/kernel/debug/tracing/cpu_freq_switch_profile_enabled
cat /sys/kernel/debug/tracing/trace_stat/cpu_freq_switch to see the
profiling stats.

Signed-off-by: Cassidy Burden <cburden@codeaurora.org>
Change-Id: I75930748a6a8132713a7a51d142485a8be2014d2

parent a9194f67

arch/arm64/configs/msm-perf_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -524,6 +524,7 @@ CONFIG_TIMER_STATS=y
		# CONFIG_DEBUG_PREEMPT is not set
		# CONFIG_DEBUG_BUGVERBOSE is not set
		CONFIG_IPC_LOGGING=y
		CONFIG_CPU_FREQ_SWITCH_PROFILER=y
		CONFIG_PFK=y
		CONFIG_SECURITY=y
		CONFIG_SECURITY_NETWORK=y

arch/arm64/configs/msm_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -565,6 +565,7 @@ CONFIG_IPC_LOGGING=y
		CONFIG_IRQSOFF_TRACER=y
		CONFIG_PREEMPT_TRACER=y
		CONFIG_BLK_DEV_IO_TRACE=y
		CONFIG_CPU_FREQ_SWITCH_PROFILER=y
		CONFIG_PANIC_ON_DATA_CORRUPTION=y
		CONFIG_ARM64_PTDUMP=y
		CONFIG_FREE_PAGES_RDONLY=y