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plot_summary.in
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#! @PATH_PERL@ -w
# $Id$
#
# Use Gnuplot to display data in summary files produced by summary.pl.
# This script requires GNUPLOT 3.7!
#
# Copyright (c) 1997, 1999 by Ulrich Windl <[email protected]>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
require 5.003; # "never tested with any other version of Perl"
use strict;
use Time::Local;
use Getopt::Long;
# parse command line
my $summary_dir = "/tmp";
my $identifier = "host " . `hostname`; # origin of these data
chomp $identifier; # remove newline
my $offset_limit = 0.128; # limit of absolute offset
my $output_file = ""; # output file defaults to stdout
my $output_file_number = 1; # numbering of output files
my $gnuplot_terminal = $ENV{DISPLAY} ? "x11" : "dumb";
my $wait_after_plot = 1;
my @peer_list = ();
my %options = ("directory|input-directory=s" => \$summary_dir,
"identifier=s" => \$identifier,
"offset-limit=f" => \$offset_limit,
"output-file=s" => \$output_file,
"peer=s@" => \@peer_list,
"plot-term|gnuplot-term=s" => \$gnuplot_terminal,
"wait-after-plot!" => \$wait_after_plot,
);
if ( !GetOptions(%options) )
{
print STDERR "valid options for $0 are:\n";
my $opt;
foreach $opt (sort(keys %options)) {
print STDERR "\t--$opt\t(default is ";
if ( ref($options{$opt}) eq "ARRAY" ) {
print STDERR join(", ", map { "'$_'" } @{$options{$opt}});
} else {
print STDERR "'${$options{$opt}}'";
}
print STDERR ")\n";
}
print STDERR "\n";
die;
}
chomp $identifier;
die "illegal offset-limit: $offset_limit" unless $offset_limit > 0.0;
$offset_limit *= 1e6; # scale to microseconds
# return the smallest value in the given list
sub min
{
my ($result, @rest) = @_;
map { $result = $_ if ($_ < $result) } @rest;
return($result);
}
# return the largest value in the given list
sub max
{
my ($result, @rest) = @_;
map { $result = $_ if ($_ > $result) } @rest;
return($result);
}
# maybe open alternate output file
sub open_output
{
my $file;
if ($output_file) {
while ( -r ($file = "$output_file$output_file_number") ) {
++$output_file_number;
}
open TOUCH, ">$file" and close TOUCH or die "$file: $!";
print "set output \"$file\"\n";
}
}
# make Gnuplot wait
sub maybe_add_pause
{
print "pause -1 \"Press key to continue...\"\n" if $wait_after_plot;
}
# plot data from loop summary
sub do_loop
{
my $fname = shift;
my $line;
my $out_file = "/tmp/tempdata$$";
my $cmd_file = "/tmp/tempcmd$$";
my ($first_day, $day_out) = ("", 0);
my ($lower_bound, $upper_bound, $rms);
my ($min_offs, $max_offs) = (1e9, -1e9);
my ($min_rms, $max_rms) = (1e9, -1e9);
open INPUT, "$fname" or die "$fname: $!";
open OUTPUT, ">$out_file" or die "$out_file: $!";
my @Fld;
while (<INPUT>) {
chop; # strip record separator
@Fld = split;
if ($#Fld == 0) {
# loops.19960405
$_ = $Fld[0]; s/.*([12]\d{3}[01]\d[0-3]\d)$/$1/;
m/(\d{4})(\d{2})(\d{2})/;
$line = timegm(59, 59, 23, $3, $2 - 1, $1 - 1900, 0, 0, 0);
$line = int $line / 86400; # days relative to 1970
$first_day = "$1-$2-$3 ($line)" unless $day_out;
next;
}
if ($#Fld != 8) {
warn "Illegal number of fields in file $fname, line $.";
next;
}
# loop 216, 856106+/-874041.5, rms 117239.8, freq 67.52+/-10.335, var 4.850
$_ = $Fld[1]; s/,/ /; $line .= " $_";
$_ = $Fld[2]; m:(.+?)\+/-(.+),:;
$lower_bound = $1 - $2;
$upper_bound = $1 + $2;
$line .= "$1 $lower_bound $upper_bound";
$min_offs = min($min_offs, $lower_bound);
$max_offs = max($max_offs, $upper_bound);
$_ = $Fld[4]; s/,/ /; $rms = $_;
$min_rms = min($min_rms, $rms);
$max_rms = max($max_rms, $rms);
$line .= " $rms";
$_ = $Fld[6]; m:(.+?)\+/-(.+),:;
$line .= " $1 " . ($1-$2) . " " . ($1+$2);
$line .= " $Fld[8]";
print OUTPUT "$line\n";
$day_out = 1;
# 9621 216 856106 -17935.5 1730147.5 117239.8 67.52 57.185 77.855 4.850
}
close INPUT;
close OUTPUT or die "close failed on $out_file: $!";
my $ylimit = "[";
if ($min_offs < -$offset_limit) {
$ylimit .= "-$offset_limit";
}
$ylimit .= ":";
if ($max_offs > $offset_limit) {
$ylimit .= "$offset_limit";
}
if ( $ylimit eq "[:" ) {
$ylimit = "";
} else {
$ylimit = "[] $ylimit]";
}
# build command file for GNUplot
open OUTPUT, "> $cmd_file" or die "$cmd_file: $!";
my $oldfh = select OUTPUT;
print "set term $gnuplot_terminal\n";
open_output;
print "set grid\n";
print "set title \"Loop Summary for $identifier: " .
"Daily mean values since $first_day\\n" .
"(Offset limit is $offset_limit microseconds)\"\n";
print "set ylabel \"[us]\"\n";
print "set data style yerrorbars\n";
print "set multiplot\n";
print "set size 1, 0.5\n";
print "set lmargin 8\n";
print "set origin 0, 0.5\n";
print "plot $ylimit \"$out_file\"" .
" using 1:3:4:5 title \"mean offset\", ";
print "\"$out_file\" using 1:(\$3-\$6/2) " .
"title \"(sigma low)\" with lines, ";
print "\"$out_file\" using 1:3 smooth bezier " .
"title \"(Bezier med)\" with lines, ";
print "\"$out_file\" using 1:(\$3+\$6/2) " .
"title \"(sigma high)\" with lines\n";
print "set ylabel \"[ppm]\"\n";
print "set origin 0, 0.0\n";
print "set title\n";
print "set xlabel \"Days relative to 1970\"\n";
print "plot \"$out_file\" using 1:7:8:9 title \"mean frequency\", ";
print "\"$out_file\" using 1:(\$7-\$10/2) " .
"title \"(sigma low)\" with lines, ";
print "\"$out_file\" using 1:7 smooth bezier " .
"title \"(Bezier med)\" with lines, ";
print "\"$out_file\" using 1:(\$7+\$10/2) " .
"title \"(sigma high)\" with lines\n";
print "set nomultiplot\n";
maybe_add_pause;
$ylimit = "[";
if ($min_rms < -$offset_limit) {
$ylimit .= "-$offset_limit";
}
$ylimit .= ":";
if ($max_rms > $offset_limit) {
$ylimit .= "$offset_limit";
}
if ( $ylimit eq "[:" ) {
$ylimit ="";
} else {
$ylimit = "[] $ylimit]";
}
open_output;
print "set title \"Loop Summary for $identifier: " .
"Standard deviation since $first_day\\n" .
"(Offset limit is $offset_limit microseconds)\"\n";
print "set xlabel\n";
print "set ylabel \"[us]\"\n";
print "set origin 0, 0.5\n";
print "set data style linespoints\n";
print "set multiplot\n";
print "plot $ylimit \"$out_file\" using 1:6 title \"Offset\", ";
print "\"$out_file\" using 1:6 smooth bezier " .
"title \"(Bezier)\" with lines\n";
print "set title\n";
print "set origin 0, 0.0\n";
print "set xlabel \"Days relative to 1970\"\n";
print "set ylabel \"[ppm]\"\n";
print "plot \"$out_file\" using 1:10 title \"Frequency\", ";
print "\"$out_file\" using 1:10 smooth bezier " .
"title \"(Bezier)\" with lines\n";
print "set nomultiplot\n";
maybe_add_pause;
close OUTPUT or die "close failed on $cmd_file: $!";
select $oldfh;
print `gnuplot $cmd_file`;
unlink $cmd_file;
unlink $out_file;
}
# plot data form peer summary
sub do_peer
{
my $fname = shift;
my $peer = shift;
my $out_file = "/tmp/tempdata$$";
my $cmd_file = "/tmp/tempcmd$$";
my $line;
my ($first_day, $day_out) = ("", 0);
open INPUT, "$fname" or die "$fname: $!";
open OUTPUT, ">$out_file" or die "$out_file: $!";
my @Fld;
while (<INPUT>) {
chop; # strip record separator
@Fld = split;
if ($#Fld == 0) {
# peers.19960405
$_ = $Fld[0]; s/.*([12]\d{3}[01]\d[0-3]\d)$/$1/;
m/(\d{4})(\d{2})(\d{2})/ or next;
$line = timegm(59, 59, 23, $3, $2 - 1, $1 - 1900, 0, 0, 0);
$line = int $line / 86400; # days relative to 1970
$first_day = "$1-$2-$3 ($line)" unless $day_out;
next;
}
if ($#Fld != 7) {
warn "Illegal number of fields in file $fname, line $.";
next;
}
next if ($Fld[0] ne $peer);
# ident cnt mean rms max delay dist disp
# 127.127.8.1 38 30.972 189.867 1154.607 0.000 879.760 111.037
$Fld[0] = $line;
print OUTPUT join(' ', @Fld) . "\n";
# 9969 38 30.972 189.867 1154.607 0.000 879.760 111.037
$day_out = 1;
}
close INPUT;
close OUTPUT or die "close failed on $out_file: $!";
die "no data found for peer $peer" if !$day_out;
open OUTPUT, "> $cmd_file" or die "$cmd_file: $!";
my $oldfh = select OUTPUT;
print "set term $gnuplot_terminal\n";
open_output;
print "set grid\n";
print "set multiplot\n";
print "set lmargin 8\n";
print "set size 1, 0.34\n";
print "set origin 0, 0.66\n";
print "set title " .
"\"Peer Summary for $peer on $identifier since $first_day\"\n";
print "set data style linespoints\n";
print "set ylabel \"[us]\"\n";
print "plot \"$out_file\" using 1:3 title \"mean offset\", ";
print "\"$out_file\" using 1:3 smooth bezier " .
"title \"(Bezier)\" with lines, ";
print "\"$out_file\" using 1:(\$3-\$7/2) " .
"title \"(sigma low)\" with lines, ";
print "\"$out_file\" using 1:(\$3+\$7/2) " .
"title \"(sigma high)\" with lines\n";
print "set title\n";
print "set origin 0, 0.34\n";
print "set size 1, 0.32\n";
print "set ylabel\n";
print "plot \"$out_file\" using 1:7 title \"dist\", ";
print "\"$out_file\" using 1:7 smooth bezier " .
"title \"(Bezier)\" with lines\n";
print "set origin 0, 0.00\n";
print "set size 1, 0.35\n";
print "set xlabel \"Days relative to 1970\"\n";
print "plot \"$out_file\" using 1:8 title \"disp\", ";
print "\"$out_file\" using 1:8 smooth bezier " .
"title \"(Bezier)\" with lines\n";
print "set nomultiplot\n";
maybe_add_pause;
select $oldfh;
close OUTPUT or die "close failed on $cmd_file: $!";
print `gnuplot $cmd_file`;
unlink $cmd_file;
unlink $out_file;
}
my $loop_summary ="$summary_dir/loop_summary";
my $peer_summary ="$summary_dir/peer_summary";
my $clock_summary="$summary_dir/clock_summary";
do_loop $loop_summary;
map { do_peer $peer_summary, $_ } @peer_list;