2 files changed, 9 insertions, 3 deletions

diff --git a/lisp/gnus/ChangeLog b/lisp/gnus/ChangeLog
index ee5d76961b3..1ade749427f 100644
--- a/lisp/gnus/ChangeLog
+++ b/lisp/gnus/ChangeLog
@@ -8,6 +8,7 @@
         for reuse.
         (gnus-open-server): Use it to add more tracing.
         (gnus-finish-retrieve-group-infos): Add backend tracing.
+        (gnus-backend-trace): Also note the elapsed seconds.
 
 2012-12-22  Philipp Haselwarter  <philipp@haselwarter.org>
 
diff --git a/lisp/gnus/gnus-int.el b/lisp/gnus/gnus-int.el
index b69229965a7..ea887b27cf9 100644
--- a/lisp/gnus/gnus-int.el
+++ b/lisp/gnus/gnus-int.el
@@ -252,9 +252,14 @@ If it is down, start it up (again)."
 (defun gnus-backend-trace (type form)
   (with-current-buffer (get-buffer-create "*gnus trace*")
     (buffer-disable-undo)
-      (goto-char (point-max))
-      (insert (format-time-string "%H:%M:%S")
-              (format " %s %S\n" type form))))
+    (goto-char (point-max))
+    (insert (format-time-string "%H:%M:%S")
+            (format " %.2fs %s %S\n"
+                    (if (numberp gnus-backend-trace)
+                        (- (float-time) gnus-backend-trace)
+                      0)
+                    type form))
+    (setq gnus-backend-trace (float-time))))
 
 (defun gnus-open-server (gnus-command-method)
   "Open a connection to GNUS-COMMAND-METHOD."