diff --git a/mercurial/help/config.txt b/mercurial/help/config.txt
--- a/mercurial/help/config.txt
+++ b/mercurial/help/config.txt
@@ -990,6 +990,19 @@ profiling is done using lsprof.
     file exists, it is replaced. Default: None, data is printed on
     stderr
 
+``sort``
+    Sort field.  Specific to the ``ls`` instrumenting profiler.
+    One of ``callcount``, ``reccallcount``, ``totaltime`` and
+    ``inlinetime``.
+    Default: inlinetime.
+
+``nested``
+    Show at most this number of lines of drill-down info in a tree structure
+    after each main entry. This can help explain the difference between Total
+    and Inline.
+    Specific to the ``ls`` instrumenting profiler.
+    Default: 5.
+
 ``revsetalias``
 ---------------