diff -r 0911191dc4c9 -r faf1b8923da2 mercurial/profiling.py
--- a/mercurial/profiling.py	Thu Oct 20 23:16:32 2016 +0900
+++ b/mercurial/profiling.py	Fri Nov 04 20:50:38 2016 -0700
@@ -80,11 +80,7 @@
 
 @contextlib.contextmanager
 def statprofile(ui, fp):
-    try:
-        import statprof
-    except ImportError:
-        raise error.Abort(_(
-            'statprof not available - install using "easy_install statprof"'))
+    from . import statprof
 
     freq = ui.configint('profiling', 'freq', default=1000)
     if freq > 0:
@@ -94,12 +90,29 @@
     else:
         ui.warn(_("invalid sampling frequency '%s' - ignoring\n") % freq)
 
-    statprof.start()
+    statprof.start(mechanism='thread')
+
     try:
         yield
     finally:
-        statprof.stop()
-        statprof.display(fp)
+        data = statprof.stop()
+
+        profformat = ui.config('profiling', 'statformat', 'hotpath')
+
+        formats = {
+            'byline': statprof.DisplayFormats.ByLine,
+            'bymethod': statprof.DisplayFormats.ByMethod,
+            'hotpath': statprof.DisplayFormats.Hotpath,
+            'json': statprof.DisplayFormats.Json,
+        }
+
+        if profformat in formats:
+            displayformat = formats[profformat]
+        else:
+            ui.warn(_('unknown profiler output format: %s\n') % profformat)
+            displayformat = statprof.DisplayFormats.Hotpath
+
+        statprof.display(fp, data=data, format=displayformat)
 
 @contextlib.contextmanager
 def profile(ui):