linux-kernel - Re: [PATCH v5 0/4] Reduce NUMA related overhead in perf record profiling on large server systems

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Date:   Mon, 28 Jan 2019 11:39:49 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 0/4] Reduce NUMA related overhead in perf record
 profiling on large server systems

On 28.01.2019 11:20, Jiri Olsa wrote:
> On Mon, Jan 28, 2019 at 10:13:20AM +0300, Alexey Budankov wrote:
> 
> SNIP
> 
>>> ---
>>> Alexey Budankov (4):
>>>   perf record: allocate affinity masks
>>>   perf record: bind the AIO user space buffers to nodes
>>>   perf record: apply affinity masks when reading mmap buffers
>>>   perf record: implement --affinity=node|cpu option
>>>
>>>  tools/perf/Documentation/perf-record.txt |   5 ++
>>>  tools/perf/builtin-record.c              |  45 +++++++++-
>>>  tools/perf/perf.h                        |   8 ++
>>>  tools/perf/util/cpumap.c                 |  10 +++
>>>  tools/perf/util/cpumap.h                 |   1 +
>>>  tools/perf/util/evlist.c                 |   6 +-
>>>  tools/perf/util/evlist.h                 |   2 +-
>>>  tools/perf/util/mmap.c                   | 105 ++++++++++++++++++++++-
>>>  tools/perf/util/mmap.h                   |   3 +-
>>>  9 files changed, 175 insertions(+), 10 deletions(-)
>>>
>>> ---
>>> Changes in v5:
>>> - avoided multiple allocations of online cpu maps by 
>>>   implementing it once in cpu_map__online()
>>> - reduced indentation at record__parse_affinity()
>>
>> Are there any more comments on this patch set?
> 
> sry for late reply.. there was a mayhem in here
> last week because of the devconf ;-)

Aww, I see. Thanks for update.

-Alexey

> 
> I'll review it today, but I think there were no more issues
> 
> jirka
>