android_kernel_zuk_msm8996.git

	Commit message (Collapse)	Author	Age
*	trace: cpu_freq_switch: use tracefs instead of debugfs	David Keitel	2016-05-16
\| \| \| \| \| \| \| \|	Rather than using debugfs, switch to tracefs which trace moved to in kernel 4.4. Signed-off-by: David Keitel <dkeitel@codeaurora.org> Change-Id: I52ef7d45cabb20cc61fbd2fb3ef5016b041bc56c
*	trace: cpu_freq_switch: Add profiler for CPU frequency switch times	Matt Wagantall	2016-03-23
	It is sometimes useful to profile how long CPU frequency switches take, and traces have already been added for this purpose. Make use of these and the trace_stat framework to generate statistical histograms of frequency switch times in the following format: # cat /sys/kernel/debug/tracing/trace_stat/cpu_freq_switch CPU START_KHZ END_KHZ COUNT AVG_US MIN_US MAX_US \| \| \| \| \| \| \| 0 384000 1512000 3 2787 1648 3418 0 486000 384000 1 1129 1129 1129 0 1458000 384000 1 3174 3174 3174 0 1512000 384000 1 3265 3265 3265 0 1512000 486000 1 3235 3235 3235 0 1512000 1458000 1 213 213 213 0 1512000 1512000 1 0 0 0 Profiling is disabled by default (since it does incur some overhead). It can be enabled or re-disabled echoing 1 or 0 to /sys/kernel/debug/tracing/cpu_freq_switch_profile_enabled Change-Id: I3ef7f9d681b7bd13bcaa031003b10312afe1aefe Signed-off-by: Matt Wagantall <mattw@codeaurora.org>