On Tue, Jul 21, 2015 at 03:39:17AM +, Liang, Kan wrote:
SNIP
> > + case PERF_EVSEL__CONFIG_TERM_PERIOD:
> > + attr->sample_period = term->val.period;
> > + default:
> > + break;
> > + }
> > + }
> > +}
> > +
> > /*
> > *
On Tue, Jul 21, 2015 at 11:45:01PM +0900, Namhyung Kim wrote:
SNIP
> > >
> > > [jolsa@krava perf]$ ./perf record -e 'cpu/instructions,period=2/' -c
> > > 1000 sleep 1 [ perf record: Woken up 1 times to write data ] /proc/kcore
> > > requires CAP_SYS_RAWIO capability to access.
> > > [ perf
Hi,
On Tue, Jul 21, 2015 at 03:39:17AM +, Liang, Kan wrote:
> > On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
> >
> > SNIP
> >
> > > break;
> > > + case PARSE_EVENTS__TERM_TYPE_TIME:
> > > + if (time_set)
> > > + *time_set = true;
> > > +
Hi,
On Tue, Jul 21, 2015 at 03:39:17AM +, Liang, Kan wrote:
On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
SNIP
break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ if (time_set)
+ *time_set = true;
+
On Tue, Jul 21, 2015 at 11:45:01PM +0900, Namhyung Kim wrote:
SNIP
[jolsa@krava perf]$ ./perf record -e 'cpu/instructions,period=2/' -c
1000 sleep 1 [ perf record: Woken up 1 times to write data ] /proc/kcore
requires CAP_SYS_RAWIO capability to access.
[ perf record:
On Tue, Jul 21, 2015 at 03:39:17AM +, Liang, Kan wrote:
SNIP
+ case PERF_EVSEL__CONFIG_TERM_PERIOD:
+ attr-sample_period = term-val.period;
+ default:
+ break;
+ }
+ }
+}
+
/*
* The
> On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
>
> SNIP
>
> > break;
> > + case PARSE_EVENTS__TERM_TYPE_TIME:
> > + if (time_set)
> > + *time_set = true;
> > + CHECK_TYPE_VAL(NUM);
> > + if (term->val.num > 1)
> > +
On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
SNIP
> break;
> + case PARSE_EVENTS__TERM_TYPE_TIME:
> + if (time_set)
> + *time_set = true;
> + CHECK_TYPE_VAL(NUM);
> + if (term->val.num > 1)
> +
> > > [jolsa@krava perf]$ ./perf record -e 'cpu/cpu-
> cycles/,cpu/instructions,time/' kill
> > > ...
> > > [jolsa@krava perf]$ ./perf evlist -v
> > > cpu/cpu-cycles/: type: 4, size: 112, config: 0x3c, { sample_period,
> > > sample_freq }: 4000, sample_type: IP|TID|PERIOD|IDENTIFIER,
> > >
[jolsa@krava perf]$ ./perf record -e 'cpu/cpu-
cycles/,cpu/instructions,time/' kill
...
[jolsa@krava perf]$ ./perf evlist -v
cpu/cpu-cycles/: type: 4, size: 112, config: 0x3c, { sample_period,
sample_freq }: 4000, sample_type: IP|TID|PERIOD|IDENTIFIER,
read_format: ID,
On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
SNIP
break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ if (time_set)
+ *time_set = true;
+ CHECK_TYPE_VAL(NUM);
+ if (term-val.num 1)
+
On Mon, Jul 20, 2015 at 03:04:20PM +, Liang, Kan wrote:
SNIP
break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ if (time_set)
+ *time_set = true;
+ CHECK_TYPE_VAL(NUM);
+ if (term-val.num 1)
+
On Sun, Jul 19, 2015 at 12:21:28PM +0900, Namhyung Kim wrote:
SNIP
> >
> > [jolsa@krava perf]$ ./perf record -e
> > 'cpu/cpu-cycles/,cpu/instructions,time/' kill
> > ...
> > [jolsa@krava perf]$ ./perf evlist -v
> > cpu/cpu-cycles/: type: 4, size: 112, config: 0x3c, { sample_period,
> >
On Sun, Jul 19, 2015 at 12:21:28PM +0900, Namhyung Kim wrote:
SNIP
[jolsa@krava perf]$ ./perf record -e
'cpu/cpu-cycles/,cpu/instructions,time/' kill
...
[jolsa@krava perf]$ ./perf evlist -v
cpu/cpu-cycles/: type: 4, size: 112, config: 0x3c, { sample_period,
sample_freq }:
Hi Jiri,
On Sat, Jul 18, 2015 at 02:45:47PM +0200, Jiri Olsa wrote:
> On Fri, Jul 17, 2015 at 07:30:53AM -0400, kan.li...@intel.com wrote:
>
> SNIP
>
> > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> > index a71eeb2..c9981df 100644
> > ---
On Fri, Jul 17, 2015 at 07:30:53AM -0400, kan.li...@intel.com wrote:
SNIP
> diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> index a71eeb2..c9981df 100644
> --- a/tools/perf/util/parse-events.c
> +++ b/tools/perf/util/parse-events.c
> @@ -25,6 +25,9 @@
> #ifdef
On Fri, Jul 17, 2015 at 07:30:53AM -0400, kan.li...@intel.com wrote:
SNIP
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a71eeb2..c9981df 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -25,6 +25,9 @@
#ifdef
Hi Jiri,
On Sat, Jul 18, 2015 at 02:45:47PM +0200, Jiri Olsa wrote:
On Fri, Jul 17, 2015 at 07:30:53AM -0400, kan.li...@intel.com wrote:
SNIP
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a71eeb2..c9981df 100644
--- a/tools/perf/util/parse-events.c
From: Kan Liang
This patchkit adds the ability to turn off time stamps per event.
One usable case of partial time is to work with per-event callgraph to
enable "PEBS threshold > 1" (https://lkml.org/lkml/2015/5/10/196), which
can significantly reduce the sampling overhead.
The event samples with
From: Kan Liang kan.li...@intel.com
This patchkit adds the ability to turn off time stamps per event.
One usable case of partial time is to work with per-event callgraph to
enable PEBS threshold 1 (https://lkml.org/lkml/2015/5/10/196), which
can significantly reduce the sampling overhead.
The
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