Re: [PATCH 2/3] perf jevents: Fix period for Intel fixed counters

From: Arnaldo Carvalho de Melo
Date: Mon Sep 30 2019 - 06:50:39 EST


Em Fri, Sep 27, 2019 at 04:35:45PM -0700, Andi Kleen escreveu:
> From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
>
> The Intel fixed counters use a special table to override the JSON
> information. During this override the period information from
> the JSON file got dropped, which results in inst_retired.any
> and similar running with frequency mode instead of a period.
> Just specify the expected period in the table.

Thanks, applied.

- Arnaldo

> Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> ---
> tools/perf/pmu-events/jevents.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
> index d413761621b0..fa85e33762f7 100644
> --- a/tools/perf/pmu-events/jevents.c
> +++ b/tools/perf/pmu-events/jevents.c
> @@ -449,12 +449,12 @@ static struct fixed {
> const char *name;
> const char *event;
> } fixed[] = {
> - { "inst_retired.any", "event=0xc0" },
> - { "inst_retired.any_p", "event=0xc0" },
> - { "cpu_clk_unhalted.ref", "event=0x0,umask=0x03" },
> - { "cpu_clk_unhalted.thread", "event=0x3c" },
> - { "cpu_clk_unhalted.core", "event=0x3c" },
> - { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" },
> + { "inst_retired.any", "event=0xc0,period=2000003" },
> + { "inst_retired.any_p", "event=0xc0,period=2000003" },
> + { "cpu_clk_unhalted.ref", "event=0x0,umask=0x03,period=2000003" },
> + { "cpu_clk_unhalted.thread", "event=0x3c,period=2000003" },
> + { "cpu_clk_unhalted.core", "event=0x3c,period=2000003" },
> + { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1,period=2000003" },
> { NULL, NULL},
> };
>
> --
> 2.21.0

--

- Arnaldo