[pypy-svn] r47444 - pypy/dist/pypy/rpython/tool

[cfbolz at codespeak.net]

Author: cfbolz
Date: Sun Oct 14 12:46:23 2007
New Revision: 47444

Added:
   pypy/dist/pypy/rpython/tool/gcstat.py   (contents, props changed)
Log:
parse the generated log file for gc statistics


Added: pypy/dist/pypy/rpython/tool/gcstat.py
==============================================================================
--- (empty file)
+++ pypy/dist/pypy/rpython/tool/gcstat.py	Sun Oct 14 12:46:23 2007
@@ -0,0 +1,46 @@
+
+class LifeTime(object):
+    __slots__ = "typeid address size varsize birth death".split()
+    def __init__(self, typeid, address, size, varsize, birth, death=-1):
+        self.typeid = typeid
+        self.address = address
+        self.size = size
+        self.birth = birth
+        self.death = death
+
+def parse_file(f, callback):
+    unknown_lifetime = {}
+    current = 0
+    for line in f:
+        line = line.split()
+        if line[0] == "free":
+            _, typeid, address = line
+            typeid = int(typeid)
+            address = int(address, 16)
+            unknown = unknown_lifetime.pop(address)
+            unknown.death = current
+            callback(unknown)
+        else:
+            if line[0] == "malloc_varsize":
+                varsize = True
+            else:
+                varsize = False
+            _, typeid, size, address = line
+            size = int(size)
+            typeid = int(typeid)
+            address = int(address, 16)
+            new = LifeTime(typeid, address, size, varsize, current)
+            unknown_lifetime[address] = new
+            current += size
+    for unknown in unknown_lifetime.itervalues():
+        unknown.death = current
+        callback(unknown)
+    return all
+
+def collect_all(f):
+    all = []
+    def callback(obj):
+        all.append(obj)
+    parse_file(f, callback)
+    return all
+