Add tools/android/memdump/.

tools/android/memdump/memreport.py

Index: tools/android/memdump/memreport.py
diff --git a/tools/android/memdump/memreport.py b/tools/android/memdump/memreport.py
new file mode 100755
index 0000000000000000000000000000000000000000..d0c6fceb7d11a4e344f67861881e667656d66607
--- /dev/null
+++ b/tools/android/memdump/memreport.py
@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import re
+import sys
+
+from sets import Set
+
+
+_ENTRIES = [
+    ('Total', '.* r... .*'),
+    ('Read-only', '.* r--. .*'),
+    ('Read-write', '.* rw-. .*'),
+    ('Executable', '.* ..x. .*'),
+    ('File read-write', '.* rw.. .* /.*'),
+    ('Anonymous read-write', '.* rw.. .* .*other=[0-9]+ ($|.*chromium:.*)'),
+    ('File executable', '.* ..x. .* /.*'),
+    ('Anonymous executable (JIT\'ed code)', '.* ..x. .* shared_other=[0-9]+ $'),
+    ('chromium mmap', '.* r... .*chromium:.*'),
+    ('chromium TransferBuffer', '.* r... .*chromium:.*CreateTransferBuffer.*'),
+    ('Galaxy Nexus GL driver', '.* r... .*pvrsrvkm.*'),
+    ('Dalvik', '.* rw.. .* /.*dalvik.*'),
+    ('Dalvik heap', '.* rw.. .* /.*dalvik-heap.*'),
+    ('Native heap (jemalloc)', '.* r... .* /.*jemalloc.*'),
+    ('System heap', '.* r... .* \\[heap\\]'),
+    ('Ashmem', '.* rw.. .* /dev/ashmem .*'),
+    ('libchromeview.so total', '.* r... .* /.*libchromeview.so'),
+    ('libchromeview.so read-only', '.* r--. .* /.*libchromeview.so'),
+    ('libchromeview.so read-write', '.* rw-. .* /.*libchromeview.so'),
+    ('libchromeview.so executable', '.* r.x. .* /.*libchromeview.so'),
+]
+
+
+def _CollectMemoryStats(memdump, region_filters):
+  processes = []
+  mem_usage_for_regions = None
+  regexps = {}
+  for region_filter in region_filters:
+    regexps[region_filter] = re.compile(region_filter)
+  for line in memdump:
+    if 'PID=' in line:
+      mem_usage_for_regions = {}
+      processes.append(mem_usage_for_regions)
+      continue
+    matched_regions = Set([])
+    for region_filter in region_filters:
+      if regexps[region_filter].match(line):
+        matched_regions.add(region_filter)
+        if not region_filter in mem_usage_for_regions:
+          mem_usage_for_regions[region_filter] = {
+              'private': 0,
+              'shared_app': 0,
+              'shared_other': 0,
+          }
+    for matched_region in matched_regions:
+      mem_usage = mem_usage_for_regions[matched_region]
+      for key in mem_usage:
+        for token in line.split(' '):
+          if key in token:
+            mem_usage[key] += int(token.split('=')[1])
+            break
+  return processes
+
+
+def _ConvertMemoryField(field):
+  return str(field / (1024.0 * 1024))
+
+
+def _DumpCSV(processes_stats):
+  total_map = {}
+  i = 0
+  for process in processes_stats:
+    i += 1
+    print ',Process ' + str(i) + ',private,shared_app,shared_other,'
+    for (k, v) in _ENTRIES:
+      if not v in process:
+        print ',' + k + ',0,0,0,'
+        continue
+      if not v in total_map:
+        total_map[v] = 0
+      total_map[v] += process[v]['private'] + (
+          process[v]['shared_app'] / len(processes_stats))
+      print ',' + k + ',' + _ConvertMemoryField(process[v]['private']) + ',' + (
+          _ConvertMemoryField(process[v]['shared_app']) + ',' + (
+          _ConvertMemoryField(process[v]['shared_other'])) + ',')
+    print ''
+
+  if len(processes_stats) > 2:
+    print >>sys.stderr, (
+        'Total stats are not supported yet with more than two processes.')
+    return
+  for (k, v) in _ENTRIES:
+    if not v in total_map:
+      print ',' + k + ',0,0'
+      continue
+    print ',' + k + ',' + _ConvertMemoryField(total_map[v]) + ','
+  print ''
+
+
+def main(argv):
+  _DumpCSV(_CollectMemoryStats(sys.stdin, [value for (key, value) in _ENTRIES]))
+
+
+if __name__ == '__main__':
+  main(sys.argv)