Index: tools/perf/process_stat_array.py
===================================================================
--- tools/perf/process_stat_array.py	(revision a8d8547ea59a7d73ea440ad57c8cb10d95bed6fe)
+++ tools/perf/process_stat_array.py	(revision a8d8547ea59a7d73ea440ad57c8cb10d95bed6fe)
@@ -0,0 +1,69 @@
+#!/usr/bin/python3
+
+import argparse, os, sys, re
+
+def dir_path(string):
+    if os.path.isdir(string):
+        return string
+    else:
+        raise NotADirectoryError(string)
+
+parser = argparse.ArgumentParser()
+parser.add_argument('--path', type=dir_path, default=".cfadata", help= 'paste path to biog.txt file')
+
+try :
+	args = parser.parse_args()
+except NotADirectoryError:
+	print("Must use option --path to existing directory or have .cfadata in current directory", file=sys.stderr)
+	sys.exit(1)
+
+root, _, filenames = next(os.walk(args.path))
+
+merged = []
+counters = {}
+
+#open the files
+for filename in filenames:
+	try:
+		m = re.search('[A-z]+0x([0-9a-f]+)\.data', filename)
+		me = m.group(1)
+		counters[me] = 0
+		with open(os.path.join(root, filename), 'r') as file:
+			for line in file:
+				data = [int(x.strip()) for x in line.split(',')]
+				data = [me, *data]
+				merged.append(data)
+
+	except:
+		pass
+
+
+# Sort by timestamp (the second element)
+# take second element for sort
+def takeSecond(elem):
+    return elem[1]
+
+merged.sort(key=takeSecond)
+
+# for m in merged:
+# 	print(m)
+
+single = []
+curr = 0
+
+# merge the data
+for (me, time, value) in merged:
+	# check now much this changes
+	old = counters[me]
+	change = value - old
+	counters[me] = value
+
+	# add change to the current
+	curr = curr + change
+	single.append( (time, curr) )
+
+	pass
+
+#print
+for t, v in single:
+	print([t, v])