Bug #756104: document that bufsize in socket.recv() should be small
diff --git a/Doc/lib/libsocket.tex b/Doc/lib/libsocket.tex
index 51c4a2f..e3d9a92 100644
--- a/Doc/lib/libsocket.tex
+++ b/Doc/lib/libsocket.tex
@@ -557,6 +557,8 @@
at once is specified by \var{bufsize}. See the \UNIX{} manual page
\manpage{recv}{2} for the meaning of the optional argument
\var{flags}; it defaults to zero.
+\note{For best match with hardware and network realities, the value of
+\var{bufsize} should be a relatively small power of 2, for example, 4096.}
\end{methoddesc}
\begin{methoddesc}[socket]{recvfrom}{bufsize\optional{, flags}}