From 96be3de87556d37f94d07eea726f6dd1a5b561b6 Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Mon, 9 Mar 2009 16:27:24 +0000
Subject: Implement profiler mode for bcfg2-info

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@5111 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/Options.py  |  2 ++
 src/sbin/bcfg2-info | 36 ++++++++++++++++++++++++++++--------
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/src/lib/Options.py b/src/lib/Options.py
index 2cdc5fcae..b497c138f 100644
--- a/src/lib/Options.py
+++ b/src/lib/Options.py
@@ -220,6 +220,8 @@ CLIENT_EXTRA_DISPLAY = Option('enable extra entry output',
                               default=False, cmd='-e', )
 CLIENT_PARANOID = Option('make automatic backups of config files',
                          default=False, cmd='-P', )
+CORE_PROFILE = Option('profile server core',
+                      default=False, cmd='-p', )
 CLIENT_AGENT = Option('run in agent (continuous) mode, wait for reconfigure command from server', default=False, cmd='-A', )
 CLIENT_DRIVERS = Option('Specify tool driver set', cmd='-D',
                         cf=('client', 'drivers'),
diff --git a/src/sbin/bcfg2-info b/src/sbin/bcfg2-info
index 4d4e1aea1..72e6c42e0 100755
--- a/src/sbin/bcfg2-info
+++ b/src/sbin/bcfg2-info
@@ -2,7 +2,7 @@
 '''This tool loads the Bcfg2 core into an interactive debugger'''
 __revision__ = '$Revision$'
 
-import copy, logging, lxml.etree, sys, cmd
+import copy, logging, lxml.etree, sys, cmd, tempfile
 import Bcfg2.Logger, Bcfg2.Server.Core, os
 import Bcfg2.Server.Plugins.Metadata, Bcfg2.Server.Plugin
 import Bcfg2.Options
@@ -287,6 +287,16 @@ Usage: [quit|exit]"""
                         continue
                     print cand[0].name
 
+def main(repo, plugins, password, encoding, debug, args=[]):
+    loop = infoCore(repo, plugins, password, encoding, debug)
+    if args == ['exit']:
+        raise SystemExit(0)
+    elif args: 
+        loop.onecmd(" ".join(args))
+        raise SystemExit(0)
+    else:
+        loop.do_loop()
+
 if __name__ == '__main__':
     Bcfg2.Logger.setup_logging('bcfg2-info', to_syslog=False)
     optinfo = {
@@ -297,15 +307,25 @@ if __name__ == '__main__':
                     'plugins': Bcfg2.Options.SERVER_PLUGINS,
                     'password': Bcfg2.Options.SERVER_PASSWORD,
                     'event debug': Bcfg2.Options.DEBUG,
+                    'profile': Bcfg2.Options.CORE_PROFILE,
                     'encoding': Bcfg2.Options.ENCODING})
     setup = Bcfg2.Options.OptionParser(optinfo)
     setup.parse(sys.argv[1:])
     print setup
-    loop = infoCore(setup['repo'], setup['plugins'], 
-                    setup['password'], setup['encoding'],
-                    '-d' in sys.argv)
-    if "args" in setup and setup['args']:
-        loop.onecmd(" ".join(setup['args']))
-        raise SystemExit(0)
+    if not setup['profile']:
+        main(setup['repo'], setup['plugins'], setup['password'], setup['encoding'],
+             '-d' in sys.argv, [])
     else:
-        loop.do_loop()
+        import hotshot, hotshot.stats
+        pfd, pfile = tempfile.mkstemp()
+        prof = hotshot.Profile(pfile)
+        try:
+            prof.runcall(main, setup['repo'], setup['plugins'], setup['password'],
+                         setup['encoding'], '-d' in sys.argv, ['exit'])
+        except SystemExit:
+            stats = hotshot.stats.load(pfile)
+            stats.strip_dirs()
+            stats.sort_stats('time', 'calls')
+            stats.print_stats(80)
+            print pfile
+            raise
-- 
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