add util.log_time helper

The reason for this is that more and more things I was wanting to be able to
see how long they took.  This puts that time logic into a single place.  It
also supports (by default) reading from /proc/uptime as the timing mechanism.

While that is almost certainly slower than time.time(), it does give 
millisecond granularity and is not affected by 'ntpdate' having
run in between the two events.

1 files changed, 4 insertions, 1 deletions

diff --git a/bin/cloud-init b/bin/cloud-init
index c5a5b949..bd9ddc04 100755
--- a/bin/cloud-init
+++ b/bin/cloud-init
@@ -502,7 +502,10 @@ def main():
     signal_handler.attach_handlers()
 
     (name, functor) = args.action
-    return functor(name, args)
+
+    return util.log_time(logfunc=LOG.debug,
+                         msg="cloud-init mode '%s'" % name, uptime=True,
+                         func=functor, args=(name, args))
 
 
 if __name__ == '__main__':