support fine timing interval and calculate std dev

1 files changed, 6 insertions, 4 deletions

diff --git a/sbin/ping/ping.8 b/sbin/ping/ping.8
index b2b82670151..f7e71ce2e98 100644
--- a/sbin/ping/ping.8
+++ b/sbin/ping/ping.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ping.8,v 1.18 1999/06/04 02:45:22 aaron Exp $
+.\"	$OpenBSD: ping.8,v 1.19 1999/07/18 16:21:55 hugh Exp $
 .\"	$NetBSD: ping.8,v 1.10 1995/12/31 04:55:35 ghudson Exp $
 .\"
 .\" Copyright (c) 1985, 1991, 1993
@@ -115,6 +115,8 @@ Wait
 seconds
 between sending each packet .
 The default is to wait for one second between each packet.
+The wait time may be fractional, but only the super-user may specify
+a value less than one second.
 This option is incompatible with the
 .Fl f
 option.
@@ -209,9 +211,9 @@ Then, hosts and gateways further and further away should be
 Round trip times and packet loss statistics are computed.
 If duplicate packets are received, they are not included in the packet
 loss calculation, although the round trip time of these packets is used
-in calculating the minimum/average/maximum round trip time numbers.
-When the specified number of packets have been sent (and received), or
-if the program is terminated with a
+in calculating the minimum/average/maximum round trip time numbers and
+the standard deviation.  When the specified number of packets have been
+sent (and received), or if the program is terminated with a
 .Dv SIGINT ,
 a brief summary is displayed.
 .Pp