On Mon, 22 Jun 2015 16:58:08 +0530 Umesh Tiwari <[email protected]> wrote:
> From: Himanshu Maithani <[email protected]> > > This patch extends tracing_thresh functionality to function profile tracer. > If tracing_thresh is set, print those entries only, > whose average is > tracing thresh. > This should also have a Signed-off-by from Himanshu Miathani. If possible. -- Steve > Signed-off-by: Umesh Tiwari <[email protected]> > --- > kernel/trace/ftrace.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c > index 4f22802..7a48a67 100644 > --- a/kernel/trace/ftrace.c > +++ b/kernel/trace/ftrace.c > @@ -600,13 +600,19 @@ static int function_stat_show(struct seq_file *m, void > *v) > goto out; > } > > + /* moved above to avoid printing values < thresh */ > +#ifdef CONFIG_FUNCTION_GRAPH_TRACER > + avg = rec->time; > + do_div(avg, rec->counter); > + if (tracing_thresh && (avg < tracing_thresh)) > + goto out; > +#endif > + > kallsyms_lookup(rec->ip, NULL, NULL, NULL, str); > seq_printf(m, " %-30.30s %10lu", str, rec->counter); > > #ifdef CONFIG_FUNCTION_GRAPH_TRACER > seq_puts(m, " "); > - avg = rec->time; > - do_div(avg, rec->counter); > > /* Sample standard deviation (s^2) */ > if (rec->counter <= 1) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
