linux-kernel - Re: [PATCH v3 0/2] perf: measure page fault duration in perf trace

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Message-ID: <20161205234006.GA22075@therese>
Date:   Tue, 6 Dec 2016 00:40:06 +0100
From:   Alexis Berlemont <alexis.berlemont@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        alexander.shishkin@...ux.intel.com
Subject: Re: [PATCH v3 0/2] perf: measure page fault duration in perf trace

Alexis Berlemont wrote:
> Hi,
> 
> Here is another attempt to make the perf-trace subcommand print the
> page fault durations.
> 
> This solution is based on static tracepoints and it was necessary to
> add 2 more tracepoints. I understood that adding tracepoints is a
> questionable solution; I can try something else if someone has another
> idea.
>

Could you indicate me a way to improve these patches so as to move
forward ?

Regards,

Alexis.

> Alexis.
> 
> Alexis Berlemont (2):
>   perf, x86-mm: declare page-faults tracepoints like irq-vectors ones
>   perf: add page fault duration measures in perf trace
> 
>  arch/x86/include/asm/trace/exceptions.h |  17 ++-
>  arch/x86/mm/fault.c                     |  17 ++-
>  tools/perf/Documentation/perf-trace.txt |   4 +-
>  tools/perf/builtin-trace.c              | 231 ++++++++++++++++++++++++++++----
>  4 files changed, 238 insertions(+), 31 deletions(-)
> 
> -- 
> 2.10.2
>