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[v6,0/3] perf tools: Add support for some spe events

Message ID 20200306152520.28233-1-james.clark@arm.com (mailing list archive)
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Series perf tools: Add support for some spe events | expand

Message

James Clark March 6, 2020, 3:25 p.m. UTC
Hi Mark,

Yes I think this is something I can look into. For now I have removed
that last patch because the current patch set already works very similarly anyway
and allows people to use SPE in perf:

    ./perf record -e arm_spe_0/branch_filter=1/
vs
    ./perf record -e arm_spe/branch-misses/pp

Also I don't have access to any big.LITTLE hardware with SPE so wouldn't be able
to test collating all the SPE PMUs.

Thanks
James

Tan Xiaojun (3):
  perf tools: Move arm-spe-pkt-decoder.h/c to the new dir
  perf tools: Add support for "report" for some spe events
  perf report: Add SPE options to --itrace argument

 tools/perf/Documentation/itrace.txt           |   5 +-
 tools/perf/util/Build                         |   2 +-
 tools/perf/util/arm-spe-decoder/Build         |   1 +
 .../util/arm-spe-decoder/arm-spe-decoder.c    | 225 ++++++
 .../util/arm-spe-decoder/arm-spe-decoder.h    |  66 ++
 .../arm-spe-pkt-decoder.c                     |   0
 .../arm-spe-pkt-decoder.h                     |   2 +
 tools/perf/util/arm-spe.c                     | 747 +++++++++++++++++-
 tools/perf/util/auxtrace.c                    |  13 +
 tools/perf/util/auxtrace.h                    |  13 +-
 10 files changed, 1032 insertions(+), 42 deletions(-)
 create mode 100644 tools/perf/util/arm-spe-decoder/Build
 create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
 create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
 rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.c (100%)
 rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.h (96%)

Comments

Mark Rutland March 13, 2020, 11:53 a.m. UTC | #1
On Fri, Mar 06, 2020 at 03:25:17PM +0000, James Clark wrote:
> Hi Mark,
> 
> Yes I think this is something I can look into. For now I have removed
> that last patch because the current patch set already works very similarly anyway
> and allows people to use SPE in perf:
> 
>     ./perf record -e arm_spe_0/branch_filter=1/
> vs
>     ./perf record -e arm_spe/branch-misses/pp

Thanks, FWIW that looks fine to me.

> Also I don't have access to any big.LITTLE hardware with SPE so wouldn't be able
> to test collating all the SPE PMUs.

Likewise, I just want to make sure we don't back ourselves into a
corner.

Otherwise, I have no comments on these patches, so feel free to take
that as:

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> 
> Thanks
> James
> 
> Tan Xiaojun (3):
>   perf tools: Move arm-spe-pkt-decoder.h/c to the new dir
>   perf tools: Add support for "report" for some spe events
>   perf report: Add SPE options to --itrace argument
> 
>  tools/perf/Documentation/itrace.txt           |   5 +-
>  tools/perf/util/Build                         |   2 +-
>  tools/perf/util/arm-spe-decoder/Build         |   1 +
>  .../util/arm-spe-decoder/arm-spe-decoder.c    | 225 ++++++
>  .../util/arm-spe-decoder/arm-spe-decoder.h    |  66 ++
>  .../arm-spe-pkt-decoder.c                     |   0
>  .../arm-spe-pkt-decoder.h                     |   2 +
>  tools/perf/util/arm-spe.c                     | 747 +++++++++++++++++-
>  tools/perf/util/auxtrace.c                    |  13 +
>  tools/perf/util/auxtrace.h                    |  13 +-
>  10 files changed, 1032 insertions(+), 42 deletions(-)
>  create mode 100644 tools/perf/util/arm-spe-decoder/Build
>  create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.c
>  create mode 100644 tools/perf/util/arm-spe-decoder/arm-spe-decoder.h
>  rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.c (100%)
>  rename tools/perf/util/{ => arm-spe-decoder}/arm-spe-pkt-decoder.h (96%)
> 
> -- 
> 2.17.1
>