linux-kernel - Re: [PATCH 7/9] scripts: python: implement get or create frame function

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Date:   Fri, 23 Jun 2023 17:04:56 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Anup Sharma <anupnewsmail@...il.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/9] scripts: python: implement get or create frame function

On Wed, Jun 21, 2023 at 12:45 PM Anup Sharma <anupnewsmail@...il.com> wrote:
>
> The CATEGORIES list and the USER_CATEGORY_INDEX and
> KERNEL_CATEGORY_INDEX constants has been introduced.
>
> The get_or_create_frame function is responsible for retrieving or
> creating a frame based on the provided frameString. If the frame
> corresponding to the frameString is found in the frameMap, it is
> returned. Otherwise, a new frame is created by appending relevant
> information to the frameTable's 'data' array and adding the
> frameString to the stringTable.
>
> The index of the newly created frame is added to the frameMap.
>
> Signed-off-by: Anup Sharma <anupnewsmail@...il.com>
> ---
>  .../scripts/python/firefox-gecko-converter.py | 38 +++++++++++++++++++
>  1 file changed, 38 insertions(+)
>
> diff --git a/tools/perf/scripts/python/firefox-gecko-converter.py b/tools/perf/scripts/python/firefox-gecko-converter.py
> index 30fc542cfdeb..866751e5d1ce 100644
> --- a/tools/perf/scripts/python/firefox-gecko-converter.py
> +++ b/tools/perf/scripts/python/firefox-gecko-converter.py
> @@ -15,6 +15,13 @@ def isPerfScriptFormat(profile):
>      firstLine = profile[:profile.index('\n')]
>      return bool(re.match(r'^\S.*?\s+(?:\d+/)?\d+\s+(?:\d+\d+\s+)?[\d.]+:', firstLine))
>
> +CATEGORIES = [
> +{'name': 'User', 'color': 'yellow', 'subcategories': ['Other']},
> +{'name': 'Kernel', 'color': 'orange', 'subcategories': ['Other']}
> +]
> +USER_CATEGORY_INDEX = 0
> +KERNEL_CATEGORY_INDEX = 1
> +
>  def convertPerfScriptProfile(profile):
>      def _createtread(name, pid, tid):
>          markers = {
> @@ -70,6 +77,37 @@ def convertPerfScriptProfile(profile):
>                  stackMap[key] = stack
>              return stack
>
> +        frameMap = dict()
> +        def get_or_create_frame(frameString):
> +            frame = frameMap.get(frameString)
> +            if frame is None:
> +                frame = len(frameTable['data'])
> +                location = len(stringTable)
> +                stringTable.append(frameString)
> +
> +                category = KERNEL_CATEGORY_INDEX if frameString.find('kallsyms') != -1 or frameString.find('/vmlinux') != -1 or frameString.endswith('.ko)') else USER_CATEGORY_INDEX

This line is too long, we usually don't allow long lines
over 100 characters.

Thanks,
Namhyung


> +                implementation = None
> +                optimizations = None
> +                line = None
> +                relevantForJS = False
> +                subcategory = None
> +                innerWindowID = 0
> +                column = None
> +
> +                frameTable['data'].append([
> +                    location,
> +                    relevantForJS,
> +                    innerWindowID,
> +                    implementation,
> +                    optimizations,
> +                    line,
> +                    column,
> +                    category,
> +                    subcategory,
> +                ])
> +                frameMap[frameString] = frame
> +            return frame
> +
>          def addSample(threadName, stackArray, time):
>              nonlocal name
>              if name != threadName:
> --
> 2.34.1
>