oping(1): Update fping's URL.

[liboping.git] / src / mans / oping.pod

diff --git a/src/mans/oping.pod b/src/mans/oping.pod
index a2307fe..5582286 100644 (file)
--- a/src/mans/oping.pod
+++ b/src/mans/oping.pod
@@ -183,9 +183,15 @@ Do not show a graph.
 
 =item B<prettyping>
 
 
 =item B<prettyping>
 

-Show a graph with time on the x-axis in a round-robin fashion, i.e. continue on
-the left if the right edge is reached. The y-axis shows the round-trip time.
-This is the default.
+Show a graph with time on the x-axis, the y-axis shows the round-trip time.
+This is the default graph.
+
+If your terminal supports unicode and colors, they are used to improve
+the precision of the data shown: a green box is drawn for round-trip times up
+to one third of the configured timeout, the height representing the RTT. Longer
+RTTs will start to fill the box yellow (with a green background) and then red
+(with a yellow background). Lost packages are drawn as a bold red explamation
+mark.

 
 =item B<boxplot>
 
 
 =item B<boxplot>
 


@@ -208,12 +214,9 @@ as round-trip time from 0ms on the left to the I<interval> (the B<-i> option,
 default 1000ms) on the right.
 
 The height of the graph is scaled so that the most-used buckets vertically fills
 default 1000ms) on the right.
 
 The height of the graph is scaled so that the most-used buckets vertically fills

-the line. The buckets are colored green up to and including the median, yellow
-up to and including the 95th percentile and red for the remainder.
-
-In addition, the histogram is colored, if supported by the terminal. The green
-bars include the median (50% of responses), yellow bars include the 95th
-percentile and outliers are colored red.
+the line. The buckets are colored green up to and including the 80th
+percentile, yellow up to and including the 95th percentile and red for the
+remainder.

 
 =back
 
 
 =back
 


@@ -223,19 +226,8 @@ Configures the latency percentile to report. I<percent> must be a number
 between zero and 100, exclusively in both cases. In general, defaults to B<95>.
 If B<-c> is given and a number less than 20, this would be the same as the
 maximum. In this case the default is chosen so that it excludes the maximum,
 between zero and 100, exclusively in both cases. In general, defaults to B<95>.
 If B<-c> is given and a number less than 20, this would be the same as the
 maximum. In this case the default is chosen so that it excludes the maximum,

-e.g. if B<-cE<nbsp>5> is given, the default is I<80>.
-
-The calculated percentile has roughly millisecond precision. If precision is of
-importance, read on for a more detailed explanation. In order to calculate the
-percentile without keeping all replies in memory, I<oping> divides the
-I<interval> (the B<-i> option) in 1000 "buckets". Each bucket counts the number
-of packets received in the represented time. That means that the precision
-decreases if the interval is increased, because each bucket represents a larger
-(fraction of the) response time. The code looks for the first bucket
-representing at least I<percent> responses and returns the upper-bound latency
-represented by that bucket. Since the represented percentage may be larger than
-the configured percentile, this algorithm I<overestimes> the actual percentile
-by at most 1000th of I<interval>.
+e.g. if B<-cE<nbsp>5> is given, the default is I<80>. The calculated percentile
+is based on the last 900 packets (15 minutes with the default interval).

 
 =item B<-Z> I<percent>
 
 
 =item B<-Z> I<percent>
 


@@ -266,11 +258,11 @@ printed in red.
 
 =head1 SEE ALSO
 
 
 =head1 SEE ALSO
 

-L<ping(8)>, L<http://www.fping.com/>, L<liboping(3)>
+L<ping(8)>, L<http://fping.org/>, L<liboping(3)>

 
 =head1 AUTHOR
 
 liboping is written by Florian "octo" Forster E<lt>ff at octo.itE<gt>.
 
 =head1 AUTHOR
 
 liboping is written by Florian "octo" Forster E<lt>ff at octo.itE<gt>.

-Its homepage can be found at L<http://verplant.org/liboping/>.
+Its homepage can be found at L<http://noping.cc/>.

 
 Copyright (c) 2005-2011 by Florian "octo" Forster.
 
 Copyright (c) 2005-2011 by Florian "octo" Forster.