Re: [PATCH v2 1/7] scripts: python: Extact necessary information from process event
From: Namhyung Kim
Date: Thu Jul 06 2023 - 01:35:22 EST
Hi Anup,
On Wed, Jul 5, 2023 at 12:42 PM Anup Sharma <anupnewsmail@xxxxxxxxx> wrote:
>
> The script takes in a sample event dictionary(param_dict) and retrieves
> relevant data such as time stamp, PID, TID, thread name, and call stack
> information. If available, the call stack is parsed to include function
> names and the associated DSO, which are requires for creating json schema.
> Also few libaries has been included which will be used in later commit.
>
> Signed-off-by: Anup Sharma <anupnewsmail@xxxxxxxxx>
> ---
> .../scripts/python/firefox-gecko-converter.py | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
> create mode 100644 tools/perf/scripts/python/firefox-gecko-converter.py
>
> diff --git a/tools/perf/scripts/python/firefox-gecko-converter.py b/tools/perf/scripts/python/firefox-gecko-converter.py
> new file mode 100644
> index 000000000000..ce663840d212
> --- /dev/null
> +++ b/tools/perf/scripts/python/firefox-gecko-converter.py
> @@ -0,0 +1,37 @@
> +#!/usr/bin/env python3
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Usage:
> +#
> +# perf record -a -g -F 99 sleep 1
> +# perf script firefox-gecko-converter.py
> +
> +from __future__ import print_function
Is this needed for python3?
> +import os
> +import sys
> +import json
> +from functools import reduce
> +
> +sys.path.append(os.environ['PERF_EXEC_PATH'] + \
> + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
> +
> +from perf_trace_context import *
> +from Core import *
> +
> +def process_event(param_dict):
> + time_stamp = (param_dict['sample']['time'] // 1000) / 1000
> + pid = param_dict['sample']['pid']
> + tid = param_dict['sample']['tid']
> + thread_name = param_dict['comm']
> + start_time = time_stamp if not start_time else start_time
> + if param_dict['callchain']:
> + stack = []
> + for call in param_dict['callchain']:
> + if 'sym' not in call:
> + continue
> + stack.append(call['sym']['name'] + f' (in {call["dso"]})')
> + if len(stack) != 0:
> + stack = stack[::-1]
> + else:
> + mod = param_dict['symbol'] if 'symbol' in param_dict else '[unknown]'
Why is it 'mod' instead of 'sym' or 'func'?
Thanks,
Namhyung
> + dso = param_dict['dso'] if 'dso' in param_dict else '[unknown]'
> --
> 2.34.1
>