linux-kernel - [PATCH 8/9] scripts: python: Finalize convertPerfScriptProfile and return profile data

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Date:   Thu, 22 Jun 2023 01:16:12 +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 8/9] scripts: python: Finalize convertPerfScriptProfile and
 return profile data

If the stack is not empty, it is reversed and then passed to
the _addThreadSample function along with other relevant information.
This adds the final sample to the thread.

The thread_array is generated by mapping the 'finish' method on each
thread in the threadMap and collecting the results.
The samples within each thread are sorted in ascending order based on
the 'time' field to ensure they are in the correct order.
This implementation finalizes the processing of the profile data in
convertPerfScriptProfile and returns a structured profile representation

I still need to get the product from the device, having little confusion
on this so will implement it on next version.

Signed-off-by: Anup Sharma <anupnewsmail@...il.com>
---
 .../scripts/python/firefox-gecko-converter.py | 37 ++++++++++++++++++-
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/tools/perf/scripts/python/firefox-gecko-converter.py b/tools/perf/scripts/python/firefox-gecko-converter.py
index 866751e5d1ce..385a8b77a70a 100644
--- a/tools/perf/scripts/python/firefox-gecko-converter.py
+++ b/tools/perf/scripts/python/firefox-gecko-converter.py
@@ -64,7 +64,7 @@ def convertPerfScriptProfile(profile):
             },
             'data': [],
         }
-        
+
         stringTable = []
 
         stackMap = dict()
@@ -84,7 +84,7 @@ def convertPerfScriptProfile(profile):
                 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
                 implementation = None
                 optimizations = None
@@ -203,3 +203,36 @@ def convertPerfScriptProfile(profile):
 
             stack.append(rawFunc)
 
+        if len(stack) != 0:
+            stack.reverse()
+            _addThreadSample(pid, tid, threadName, time_stamp, stack)
+
+    thread_array = list(map(lambda thread: thread['finish'](), threadMap.values()))
+
+    for thread in thread_array:
+        # The samples are not guaranteed to be in order, sort them so that they are.
+        key = thread['samples']['schema']['time']
+        thread['samples']['data'].sort(key=lambda data : float(data[key]))
+
+    return {
+        'meta': {
+            'interval': 1,
+            'processType': 0,
+            'product': 'Linux perf',  # TODO: get this from the system
+            'stackwalk': 1,
+            'debug': 0,
+            'gcpoison': 0,
+            'asyncstack': 1,
+            'startTime': startTime,
+            'shutdownTime': None,
+            'version': 24,
+            'presymbolicated': True,
+            'categories': CATEGORIES,
+            'markerSchema': []
+            },
+        'libs': [],
+        'threads': thread_array,
+        'processes': [],
+        'pausedRanges': []
+    }
+
-- 
2.34.1