# HG changeset patch
# User Bryan O'Sullivan <bryano@fb.com>
# Date 1364849192 25200
# Node ID c1f416e4bc80471d1cdbc58d136b67c98793b832
# Parent  37f8baaf31d2dbec094a582169b61a0ee0c717db
perf: add perfdirs command

This measures the cost of computing the dirstate's dirs structure,
which becomes very expensive in a large working directory.

diff -r 37f8baaf31d2 -r c1f416e4bc80 contrib/perf.py
--- a/contrib/perf.py	Mon Apr 01 15:19:16 2013 -0500
+++ b/contrib/perf.py	Mon Apr 01 13:46:32 2013 -0700
@@ -99,6 +99,15 @@
             rev in s
     timer(d)
 
+@command('perfdirs')
+def perfdirs(ui, repo):
+    dirstate = repo.dirstate
+    'a' in dirstate
+    def d():
+        dirstate.dirs()
+        del dirstate._dirs
+    timer(d)
+
 @command('perfdirstate')
 def perfdirstate(ui, repo):
     "a" in repo.dirstate