AuroraMiddleware/v8
1
0
Fork 0
Code Issues 2 Pull Requests Releases Wiki Activity

tools/stats-viewer: Update chromium stats table layout.

Browse Source 
R=vegorov@chromium.org

Review URL: http://codereview.chromium.org/6992068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
vitalyr@chromium.org 2011-05-25 16:47:54 +00:00
parent 210fed7be8
commit 3766a315aa
1 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
tools/stats-viewer.py
View File

@ -104,10 +104,12 @@ class StatsViewer(object):
sys.exit(1)
maps_file = open(maps_name, "r")
try:
m = re.search(r"/dev/shm/\S*", maps_file.read())
if m is not None and os.path.exists(m.group(0)):
self.data_name = m.group(0)
else:
self.data_name = None
for m in re.finditer(r"/dev/shm/\S*", maps_file.read()):
if os.path.exists(m.group(0)):
self.data_name = m.group(0)
break
if self.data_name is None:
print "Can't find counter file in maps for PID %s." % self.data_name
sys.exit(1)
finally:
@ -414,7 +416,8 @@ class ChromeCounterCollection(object):
individual counters contained in the file."""
_HEADER_SIZE = 4 * 4
_NAME_SIZE = 32
_COUNTER_NAME_SIZE = 64
_THREAD_NAME_SIZE = 32
def __init__(self, data):
"""Create a new instance.
@ -426,22 +429,23 @@ class ChromeCounterCollection(object):
self.max_counters = data.IntAt(8)
self.max_threads = data.IntAt(12)
self.counter_names_offset = \
self._HEADER_SIZE + self.max_threads * (self._NAME_SIZE + 2 * 4)
self._HEADER_SIZE + self.max_threads * (self._THREAD_NAME_SIZE + 2 * 4)
self.counter_values_offset = \
self.counter_names_offset + self.max_counters * self._NAME_SIZE
self.counter_names_offset + self.max_counters * self._COUNTER_NAME_SIZE
def CountersInUse(self):
"""Return the number of counters in active use."""
for i in xrange(self.max_counters):
if self.data.ByteAt(self.counter_names_offset + i * self._NAME_SIZE) == 0:
name_offset = self.counter_names_offset + i * self._COUNTER_NAME_SIZE
if self.data.ByteAt(name_offset) == 0:
return i
return self.max_counters
def Counter(self, i):
"""Return the i'th counter."""
return ChromeCounter(self.data,
self.counter_names_offset + i * self._NAME_SIZE,
self.counter_values_offset + i * self.max_threads * 4)
name_offset = self.counter_names_offset + i * self._COUNTER_NAME_SIZE
value_offset = self.counter_values_offset + i * self.max_threads * 4
return ChromeCounter(self.data, name_offset, value_offset)
def Main(data_file, name_filter):