Hi Binoy,
[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.8-rc3 next-20160819]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
[Suggest to use git(>=2.9.0) format-patch --base= (or --base=auto for
convenience) to record
Hi Binoy,
[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.8-rc3 next-20160819]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
[Suggest to use git(>=2.9.0) format-patch --base= (or --base=auto for
convenience) to record
On Thu, 18 Aug 2016 12:39:25 +0530
Binoy Jayan wrote:
>
> +static inline void mark_timestamp(cycle_t __percpu *ts)
> +{
> + int cpu = raw_smp_processor_id();
> + per_cpu(*ts, cpu) = ftrace_now(cpu);
Just an FYI. ftrace_now() is whatever the clock source is that is
specified by /sys/ker
On Thu, Aug 18, 2016 at 12:39:25PM +0530, Binoy Jayan wrote:
> static struct trace_array*irqsoff_trace __read_mostly;
> static int tracer_enabled __read_mostly;
>
> static DEFINE_PER_CPU(int, tracing_cpu);
> -
> +static DEFINE_PER_CPU(cycle_t, ts_irqs);
>
This work is based on work by Daniel Wagner. A few tracepoints are added
at the end of the critical section. With the hist trigger in place, the
hist trigger plots may be generated, with per-cpu breakdown of events
captured. It is based on linux kernel's event infrastructure.
The following filter(
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