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| author | Todd Poynor <toddpoynor@google.com> | 2012-02-16 16:27:59 -0800 |
|---|---|---|
| committer | Todd Poynor <toddpoynor@google.com> | 2012-02-17 14:37:00 -0800 |
| commit | 4d6f3d7209ffa828fad5d5495c1eb8c571d308ad (patch) | |
| tree | 464660fcadeaa554740316cdb6f3d40717f0322e /drivers/cpufreq | |
| parent | 1f8c5cecfe44994cd617ba2803f41fb56d53e91c (diff) | |
| download | kernel_samsung_tuna-4d6f3d7209ffa828fad5d5495c1eb8c571d308ad.zip kernel_samsung_tuna-4d6f3d7209ffa828fad5d5495c1eb8c571d308ad.tar.gz kernel_samsung_tuna-4d6f3d7209ffa828fad5d5495c1eb8c571d308ad.tar.bz2 | |
cpufreq interactive governor: event tracing
Change-Id: Ic13614a3da2faa2d4bd215ca3eb7191614f0cf66
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq_interactive.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/cpufreq/cpufreq_interactive.c b/drivers/cpufreq/cpufreq_interactive.c index 45266d5..7b4efd5 100644 --- a/drivers/cpufreq/cpufreq_interactive.c +++ b/drivers/cpufreq/cpufreq_interactive.c @@ -28,6 +28,9 @@ #include <linux/kthread.h> #include <linux/mutex.h> +#define CREATE_TRACE_POINTS +#include <trace/events/cpufreq_interactive.h> + #include <asm/cputime.h> static atomic_t active_count = ATOMIC_INIT(0); @@ -183,7 +186,11 @@ static void cpufreq_interactive_timer(unsigned long data) new_freq = pcpu->freq_table[index].frequency; if (pcpu->target_freq == new_freq) + { + trace_cpufreq_interactive_already(data, cpu_load, + pcpu->target_freq, new_freq); goto rearm_if_notmax; + } /* * Do not scale down unless we have been at this frequency for the @@ -191,10 +198,16 @@ static void cpufreq_interactive_timer(unsigned long data) */ if (new_freq < pcpu->target_freq) { if (cputime64_sub(pcpu->timer_run_time, pcpu->freq_change_time) - < min_sample_time) + < min_sample_time) { + trace_cpufreq_interactive_notyet(data, cpu_load, + pcpu->target_freq, new_freq); goto rearm; + } } + trace_cpufreq_interactive_target(data, cpu_load, pcpu->target_freq, + new_freq); + if (new_freq < pcpu->target_freq) { pcpu->target_freq = new_freq; spin_lock_irqsave(&down_cpumask_lock, flags); @@ -382,6 +395,8 @@ static int cpufreq_interactive_up_task(void *data) pcpu->freq_change_time_in_idle = get_cpu_idle_time_us(cpu, &pcpu->freq_change_time); + trace_cpufreq_interactive_up(cpu, pcpu->target_freq, + pcpu->policy->cur); } } @@ -428,6 +443,8 @@ static void cpufreq_interactive_freq_down(struct work_struct *work) pcpu->freq_change_time_in_idle = get_cpu_idle_time_us(cpu, &pcpu->freq_change_time); + trace_cpufreq_interactive_down(cpu, pcpu->target_freq, + pcpu->policy->cur); } } |