diff --git a/doc/misc/tramp.texi b/doc/misc/tramp.texi
index d1c58d83aeb..45be1e27931 100644
--- a/doc/misc/tramp.texi
+++ b/doc/misc/tramp.texi
@@ -2940,6 +2940,13 @@ Ssh setup
 set to @code{t} or @code{suppress}, @command{plink} is called with the
 option @option{-share} or @option{-noshare}, respectively.

+@strong{Note} that the @value{tramp} message @samp{Opening connection
+...} in the echo area spans not only the time until @command{ssh} or
+@command{plink} return the echo prompt.  It includes also the time for
+initialization @value{tramp} performs on the remote host.  Therefore,
+the effect of the @code{tramp-use-connection-share} setting isn't
+determined by this time period completely.
+

 @subsection Configure direct copying between two remote servers