Added commit-iteration test

Author: Byron

test/git/test_performance.py

@@ -7,46 +7,62 @@
 from test.testlib import *
 from git import *
 from time import time
+import sys
 
 class TestPerformance(TestBase):
 
-    def _query_commit_info(self, c):
-        c.author
-        c.authored_date
-        c.author_tz_offset
-        c.committer
-        c.committed_date
-        c.committer_tz_offset
-        c.message
-        c.parents
-        
-    def test_iteration(self):
-        num_objs = 0
-        num_commits = 0
-        
-        # find the first commit containing the given path - always do a full 
-        # iteration ( restricted to the path in question ), but in fact it should 
-        # return quite a lot of commits, we just take one and hence abort the operation
-        
-        st = time()
-        for c in self.rorepo.iter_commits('0.1.6'):
-            num_commits += 1
-            self._query_commit_info(c)
-            for obj in c.tree.traverse():
-                obj.size
-                num_objs += 1
-            # END for each object
-        # END for each commit
-        elapsed_time = time() - st
-        print "Traversed %i Trees and a total of %i unchached objects in %s [s] ( %f objs/s )" % (num_commits, num_objs, elapsed_time, num_objs/elapsed_time) 
-        
-    def test_commit_traversal(self):
-        num_commits = 0
-        
-        st = time()
-        for c in self.rorepo.commit('0.1.6').traverse(branch_first=False):
-            num_commits += 1
-            self._query_commit_info(c)
-        # END for each traversed commit
-        elapsed_time = time() - st
-        print "Traversed %i Commits in %s [s] ( %f commits/s )" % (num_commits, elapsed_time, num_commits/elapsed_time)
+	# ref with about 100 commits in its history
+	ref_100 = '0.1.6'
+
+	def _query_commit_info(self, c):
+		c.author
+		c.authored_date
+		c.author_tz_offset
+		c.committer
+		c.committed_date
+		c.committer_tz_offset
+		c.message
+		c.parents
+		
+	def test_iteration(self):
+		no = 0
+		nc = 0
+		
+		# find the first commit containing the given path - always do a full 
+		# iteration ( restricted to the path in question ), but in fact it should 
+		# return quite a lot of commits, we just take one and hence abort the operation
+		
+		st = time()
+		for c in self.rorepo.iter_commits(self.ref_100):
+			nc += 1
+			self._query_commit_info(c)
+			for obj in c.tree.traverse():
+				obj.size
+				no += 1
+			# END for each object
+		# END for each commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Traversed %i Trees and a total of %i unchached objects in %s [s] ( %f objs/s )" % (nc, no, elapsed_time, no/elapsed_time) 
+		
+	def test_commit_traversal(self):
+		# bound to cat-file parsing performance
+		nc = 0
+		st = time()
+		for c in self.rorepo.commit(self.ref_100).traverse(branch_first=False):
+			nc += 1
+			self._query_commit_info(c)
+		# END for each traversed commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Traversed %i Commits in %s [s] ( %f commits/s )" % (nc, elapsed_time, nc/elapsed_time)
+		
+	def test_commit_iteration(self):
+		# bound to stream parsing performance
+		nc = 0
+		st = time()
+		for c in Commit.iter_items(self.rorepo, self.ref_100):
+			nc += 1
+			self._query_commit_info(c)
+		# END for each traversed commit
+		elapsed_time = time() - st
+		print >> sys.stderr, "Iterated %i Commits in %s [s] ( %f commits/s )" % (nc, elapsed_time, nc/elapsed_time)
+