0a02e44cc2
The script takes in a sample event dictionary(param_dict) and retrieves relevant data such as time stamp, PID, TID, and comm for each event. Also start time is defined as a global variable as it need to be passed to trace_end for gecko meta information field creation. Signed-off-by: Anup Sharma <anupnewsmail@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/19910fefcfe4be03cd5c2aa3fec11d3f86c0381b.1689961706.git.anupnewsmail@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
# firefox-gecko-converter.py - Convert perf record output to Firefox's gecko profile format
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# SPDX-License-Identifier: GPL-2.0
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#
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# The script converts perf.data to Gecko Profile Format,
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# which can be read by https://profiler.firefox.com/.
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#
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# Usage:
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#
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# perf record -a -g -F 99 sleep 60
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# perf script report gecko > output.json
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import os
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import sys
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from typing import Dict
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# Add the Perf-Trace-Util library to the Python path
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sys.path.append(os.environ['PERF_EXEC_PATH'] + \
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'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
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from perf_trace_context import *
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from Core import *
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# start_time is intialiazed only once for the all event traces.
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start_time = None
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# Uses perf script python interface to parse each
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# event and store the data in the thread builder.
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def process_event(param_dict: Dict) -> None:
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global start_time
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global tid_to_thread
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time_stamp = (param_dict['sample']['time'] // 1000) / 1000
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pid = param_dict['sample']['pid']
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tid = param_dict['sample']['tid']
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comm = param_dict['comm']
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# Start time is the time of the first sample
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if not start_time:
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start_time = time_stamp
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# Trace_end runs at the end and will be used to aggregate
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# the data into the final json object and print it out to stdout.
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def trace_end() -> None:
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pass
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