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Message-ID: <19910fefcfe4be03cd5c2aa3fec11d3f86c0381b.1689961706.git.anupnewsmail@gmail.com>
Date: Fri, 21 Jul 2023 23:22:56 +0530
From: Anup Sharma <anupnewsmail@...il.com>
To: 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>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Anup Sharma <anupnewsmail@...il.com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v5 2/8] perf scripts python: Extact necessary information
from process event
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@...il.com>
---
tools/perf/scripts/python/perf-gecko.py | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/tools/perf/scripts/python/perf-gecko.py b/tools/perf/scripts/python/perf-gecko.py
index 4e651adb6395..02849d3c9e81 100644
--- a/tools/perf/scripts/python/perf-gecko.py
+++ b/tools/perf/scripts/python/perf-gecko.py
@@ -20,10 +20,22 @@ sys.path.append(os.environ['PERF_EXEC_PATH'] + \
from perf_trace_context import *
from Core import *
+# start_time is intialiazed only once for the all event traces.
+start_time = None
+
# Uses perf script python interface to parse each
# event and store the data in the thread builder.
def process_event(param_dict: Dict) -> None:
- pass
+ global start_time
+ global tid_to_thread
+ time_stamp = (param_dict['sample']['time'] // 1000) / 1000
+ pid = param_dict['sample']['pid']
+ tid = param_dict['sample']['tid']
+ comm = param_dict['comm']
+
+ # Start time is the time of the first sample
+ if not start_time:
+ start_time = time_stamp
# Trace_end runs at the end and will be used to aggregate
# the data into the final json object and print it out to stdout.
--
2.34.1
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