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+#! /usr/bin/perl
+##
+## vi:ts=4:et
+##
+##---------------------------------------------------------------------------##
+##
+## Author:
+## Markus F.X.J. Oberhumer <markus@oberhumer.com>
+##
+## Description:
+## Convert the output of the LZO lzotest program into a nice table.
+##
+## Copyright (C) 1996-2008 Markus Franz Xaver Johannes Oberhumer
+##
+##---------------------------------------------------------------------------##
+
+$PROG = $0;
+require 'ctime.pl';
+
+#
+# get options
+#
+
+while ($_ = $ARGV[ $[ ], /^-/) {
+ shift(@ARGV);
+ /^--$/ && ($opt_last = 1, last);
+
+ /^--sort=name/ && ($opt_sort_summary_by_name++, next);
+ /^--sort=ratio/ && ($opt_sort_summary_by_ratio++, next);
+ /^-s/ && ($opt_summary_only++, next);
+ /^-t/ && ($opt_clear_time++, next);
+}
+
+
+$alg = '';
+$sep = "+" . ("-" x 76) . "+\n";
+
+$block_size = -1;
+
+$n = 0;
+@algs = ();
+%average = ();
+%total = ();
+
+$lzo_version_string = '';
+$lzo_version_date = '';
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+while (<>) {
+
+ if (/(^|\s)(\d+)\s+block\-size/i) {
+ if ($block_size < 0) {
+ $block_size = $2;
+ &intro($block_size);
+ } elsif ($block_size != $2) {
+ die "$PROG: block-size: $block_size != $2\n";
+ }
+ next;
+ }
+
+ if (/^\s*LZO\s.*library\s+\(v\s*([\w\.\s]+)\s*\,\s*([^\)]+)\)/) {
+ $lzo_version_string = $1;
+ $lzo_version_date = $2;
+ next;
+ }
+
+ if (/^\s*(\S+(\s+\[\S+\])?)\s*(\|.*\|)\s*$/i) {
+ if ($1 ne $alg) {
+ &footer($1);
+ &header($1);
+ }
+ $line = $3;
+ &stats(*line);
+ print "$line\n" if (!$opt_summary_only);
+ }
+}
+&footer($1);
+
+&summary();
+
+exit(0);
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+sub stats {
+ local (*l) = @_;
+ local ($x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8);
+
+ if ($l !~ /^\|\s*(.+?)\s+(\d+)\s+(\d+)\s+(\d+)\s+([\d\.]+\s+)?([\d\.]+\s+)?([\d\.]+)\s+([\d\.]+)\s*\|/) {
+ die $_;
+ }
+
+ $n++;
+
+ $x1 = $1; $x2 = $2; $x3 = $3; $x4 = $4;
+ $x5 = ($x2 > 0) ? $x4 * 100.0 / $x2 : 0.0;
+ $x6 = ($x2 > 0) ? $x4 * 8.0 / $x2 : 0.0;
+ $x7 = $7; $x8 = $8;
+
+ # convert from kB/s to MB/s (for old versions of lzotest)
+ if ($x7 =~ /\.\d\d$/) { $x7 = $x7 / 1000.0; }
+ if ($x8 =~ /\.\d\d$/) { $x8 = $x8 / 1000.0; }
+
+ if ($opt_clear_time) {
+ $x7 = $x8 = 0.0;
+ }
+
+ $s[0] += $x2;
+ $s[1] += $x3;
+ $s[2] += $x4;
+ $s[3] += $x5;
+ $s[4] += $x6;
+ if ($x7 > 0) {
+ $s[5] += 1.0 / $x7; $sn[5] += 1;
+ }
+ if ($x8 > 0) {
+ $s[6] += 1.0/ $x8; $sn[6] += 1;
+ }
+
+ $x1 =~ s/\s+$//;
+ $l = sprintf("| %-14s %10d %5d %9d %6.1f %5.2f %9.3f %9.3f |",
+ $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x8);
+}
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+sub header {
+ local ($t) = @_;
+
+ $alg = $t;
+
+ # reset stats
+ $n = 0;
+ @s = (0, 0, 0, 0.0, 0.0, 0.0, 0.0);
+ @sn = (0, 0, 0, 0, 0, 0, 0);
+
+ return if $opt_summary_only;
+
+ print "\n$alg\n\n";
+ print $sep;
+print <<EndOfString;
+| File Name Length CxB ComLen Ratio% Bits Com MB/s Dec MB/s |
+| --------- ------ --- ------ ----- ---- -------- -------- |
+EndOfString
+}
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+sub footer {
+ local ($t) = @_;
+ local ($shm5, $shm6);
+
+ return unless $alg;
+ die if $n <= 0;
+ die if $s[0] <= 0;
+
+ # harmonic mean
+ $shm5 = $s[5] > 0 ? $sn[5] / $s[5] : 0.0;
+ $shm6 = $s[6] > 0 ? $sn[6] / $s[6] : 0.0;
+
+ push(@algs,$alg);
+
+ $average{$alg} =
+ sprintf("| %-14s %10d %5d %9d %6.1f %5.2f %9.3f %9.3f |\n",
+ "Average", $s[0]/$n, $s[1]/$n, $s[2]/$n,
+ $s[3]/$n, $s[4]/$n,
+ $shm5, $shm6);
+
+ $total{$alg} =
+ sprintf("| %-14s %10d %5d %9d %6.1f %5.2f %9.3f %9.3f |\n",
+ "Total", $s[0], $s[1], $s[2],
+ $s[2]/$s[0]*100, $s[2]/$s[0]*8,
+ $shm5, $shm6);
+
+ return if $opt_summary_only;
+
+ print $sep;
+ print $average{$alg};
+ print $total{$alg};
+ print $sep, "\n";
+}
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+$sort_mode = 0;
+
+sub cmp_by_ratio {
+ local ($aa, $bb);
+
+ if ($sort_mode == 0) {
+ $aa = $average{$a};
+ $bb = $average{$b};
+ } elsif ($sort_mode == 1) {
+ $aa = $total{$a};
+ $bb = $total{$b};
+ } else {
+ die;
+ }
+
+ ($aa =~ m%^\s*\|\s+\S+\s+\d+\s+\d+\s+\d+\s+(\S+)%) || die;
+ $aa = $1;
+ ($bb =~ m%^\s*\|\s+\S+\s+\d+\s+\d+\s+\d+\s+(\S+)%) || die;
+ $bb = $1;
+
+ # $aa < $bb;
+ $aa cmp $bb;
+}
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+sub summary {
+ local ($l);
+ local (@k);
+
+ $sort_mode = 0;
+ if ($opt_sort_summary_by_name) {
+ @k = sort(@algs);
+ } elsif ($opt_sort_summary_by_ratio) {
+ @k = sort(cmp_by_ratio @algs);
+ } else {
+ @k = @algs;
+ }
+
+ print "\n\n";
+ print "Summary of average values\n\n";
+ print $sep;
+print <<EndOfString;
+| Algorithm Length CxB ComLen Ratio% Bits Com MB/s Dec MB/s |
+| --------- ------ --- ------ ----- ---- -------- -------- |
+EndOfString
+
+ for (@k) {
+ $l = $average{$_};
+ $l =~ s/Average[\s]{7}/sprintf("%-14s",$_)/e;
+ print $l;
+ }
+ print $sep;
+
+
+
+ $sort_mode = 1;
+ if ($opt_sort_summary_by_name) {
+ @k = sort(@algs);
+ } elsif ($opt_sort_summary_by_ratio) {
+ @k = sort(cmp_by_ratio @algs);
+ } else {
+ @k = @algs;
+ }
+
+ print "\n\n";
+ print "Summary of total values\n\n";
+ print $sep;
+print <<EndOfString;
+| Algorithm Length CxB ComLen Ratio% Bits Com MB/s Dec MB/s |
+| --------- ------ --- ------ ----- ---- -------- -------- |
+EndOfString
+
+ for (@k) {
+ $l = $total{$_};
+ $l =~ s/Total[\s]{9}/sprintf("%-14s",$_)/e;
+ print $l;
+ }
+ print $sep;
+}
+
+
+# /***********************************************************************
+# //
+# ************************************************************************/
+
+sub intro {
+ local ($bs) = @_;
+ local ($v, $t, $x);
+ local ($u, $uname_m, $uname_s, $uname_r);
+
+ $t = &ctime(time); chop($t);
+ $t = sprintf("%-55s |", $t);
+
+ $v='';
+ if ($lzo_version_string) {
+ $v = $lzo_version_string;
+ $v .= ', ' . $lzo_version_date if $lzo_version_date;
+ $v = sprintf("%-55s |", $v);
+ $v = sprintf("| LZO version : %s\n", $v);
+ }
+
+ if ($bs % 1024 == 0) {
+ $x = sprintf("%d (= %d kB)", $bs, $bs / 1024);
+ } else {
+ $x = sprintf("%d (= %.3f kB)", $bs, $bs / 1024.0);
+ }
+ $x = sprintf("%-55s |", $x);
+
+ $u='';
+ if (1 == 1) {
+ $uname_s = `uname -s`; $uname_s =~ s/^\s+//; $uname_s =~ s/\s+$//;
+ $uname_r = `uname -r`; $uname_r =~ s/^\s+//; $uname_r =~ s/\s+$//;
+ $uname_m = `uname -m`; $uname_m =~ s/^\s+//; $uname_m =~ s/\s+$//;
+ if ($uname_s && $uname_m) {
+ $u = $uname_s;
+ $u .= ' ' . $uname_r if $uname_r;
+ $u .= ' ' . $uname_m;
+ $u = sprintf("%-55s |", $u);
+ $u = sprintf("| Operating system : %s\n", $u);
+ }
+ }
+ print <<EndOfString;
+
++----------------------------------------------------------------------------+
+| DATA COMPRESSION TEST |
+| ===================== |
+| Time of run : $t
+$v$u| Context length : $x
++----------------------------------------------------------------------------+
+
+
+Notes:
+- CxB is the number of independent blocks a file was splitted
+- MB/s is the speed measured in 1,000,000 uncompressed bytes per second
+- all averages are calculated from the un-rounded values
+- the average ratio & bits are calculated by the arithmetic mean
+- the average speed is calculated by the harmonic mean
+
+
+EndOfString
+}
+
+__END__
+
+
+### insert something like this after 'Time of run':
+
+| Hardware : Intel Pentium 133, 64 MB RAM, 256 kB Cache |
+| Operating system : MS-DOS 7.10, HIMEM.SYS 3.95, DOS/4GW 1.97 |
+| Compiler : Watcom C32 10.5 |
+| Compiler flags : -mf -5r -oneatx |
+| Test suite : Calgary Corpus Suite |
+| Files in suite : 14 |
+| Timing accuracy : One part in 100 |
+
+
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