492 lines
15 KiB
Perl
Executable File
492 lines
15 KiB
Perl
Executable File
#!/usr/local/bin/perl
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# *******************************************************************************
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# * Copyright (C) 2002-2007 International Business Machines Corporation and *
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# * others. All Rights Reserved. *
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# *******************************************************************************
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use strict;
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# Assume we are running within the icu4j root directory
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use lib 'src/com/ibm/icu/dev/test/perf';
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use Dataset;
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#---------------------------------------------------------------------
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# Test class
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my $TESTCLASS = 'com.ibm.icu.dev.test.perf.DecimalFormatPerformanceTest';
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# Methods to be tested. Each pair represents a test method and
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# a baseline method which is used for comparison.
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my @METHODS = (
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['TestJDKConstruction', 'TestICUConstruction'],
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['TestJDKParse', 'TestICUParse'],
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['TestJDKFormat', 'TestICUFormat']
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);
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# Patterns which define the set of characters used for testing.
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my @OPTIONS = (
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# locale pattern date string
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[ "en_US", "#,###.##", "1,234.56"],
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[ "de_DE", "#,###.##", "1.234,56"],
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);
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my $THREADS; # number of threads (input from command-line args)
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my $CALIBRATE = 2; # duration in seconds for initial calibration
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my $DURATION = 10; # duration in seconds for each pass
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my $NUMPASSES = 4; # number of passes. If > 1 then the first pass
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# is discarded as a JIT warm-up pass.
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my $TABLEATTR = 'BORDER="1" CELLPADDING="4" CELLSPACING="0"';
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my $PLUS_MINUS = "±";
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if ($NUMPASSES < 3) {
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die "Need at least 3 passes. One is discarded (JIT warmup) and need two to have 1 degree of freedom (t distribution).";
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}
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my $OUT; # see out()
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# run all tests with the specified number of threads from command-line input
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# (if there is no arguments, use $THREADS = 1)
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foreach my $arg ($#ARGV >= 0 ? @ARGV : "1") {
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$THREADS = $arg;
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main();
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}
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#---------------------------------------------------------------------
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# ...
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sub main {
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my $date = localtime;
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my $threads = ($THREADS > 1) ? "($THREADS threads)" : "";
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my $title = "ICU4J Performance Test $threads $date";
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my $html = $date;
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$html =~ s/://g; # ':' illegal
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$html =~ s/\s*\d+$//; # delete year
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$html =~ s/^\w+\s*//; # delete dow
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$html = "perf $html.html";
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open(HTML,">$html") or die "Can't write to $html: $!";
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print HTML <<EOF;
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<HTML>
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<HEAD>
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<TITLE>$title</TITLE>
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</HEAD>
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<BODY>
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EOF
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print HTML "<H1>$title</H1>\n";
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print HTML "<H2>$TESTCLASS</H2>\n";
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my $raw = "";
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for my $methodPair (@METHODS) {
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my $testMethod = $methodPair->[0];
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my $baselineMethod = $methodPair->[1];
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print HTML "<P><TABLE $TABLEATTR><TR><TD>\n";
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print HTML "<P><B>$testMethod vs. $baselineMethod</B></P>\n";
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print HTML "<P><TABLE $TABLEATTR BGCOLOR=\"#CCFFFF\">\n";
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print HTML "<TR><TD>Options</TD><TD>$testMethod</TD>";
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print HTML "<TD>$baselineMethod</TD><TD>Ratio</TD></TR>\n";
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$OUT = '';
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for my $pat (@OPTIONS) {
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print HTML "<TR><TD>@$pat[0], \"@$pat[1]\", \"@$pat[2]\"</TD>\n";
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out("<P><TABLE $TABLEATTR WIDTH=\"100%\">");
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# measure the test method
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out("<TR><TD>");
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print "\n$testMethod [@$pat]\n";
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my $t = measure2($testMethod, $pat, -$DURATION);
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out("</TD></TR>");
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print HTML "<TD>", formatSeconds(4, $t->getMean(), $t->getError);
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print HTML "/event</TD>\n";
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# measure baseline method
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out("<TR><TD>");
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print "\n$baselineMethod [@$pat]\n";
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my $b = measure2($baselineMethod, $pat, -$DURATION);
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out("</TD></TR>");
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print HTML "<TD>", formatSeconds(4, $b->getMean(), $t->getError);
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print HTML "/event</TD>\n";
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out("</TABLE></P>");
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# output ratio
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my $r = $t->divide($b);
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my $mean = $r->getMean() - 1;
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my $color = $mean < 0 ? "RED" : "BLACK";
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print HTML "<TD><B><FONT COLOR=\"$color\">", formatPercent(3, $mean, $r->getError);
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print HTML "</FONT></B></TD></TR>\n";
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}
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print HTML "</TABLE></P>\n";
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print HTML "<P>Raw data:</P>\n";
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print HTML $OUT;
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print HTML "</TABLE></P>\n";
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}
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print HTML <<EOF;
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</BODY>
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</HTML>
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EOF
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close(HTML) or die "Can't close $html: $!";
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}
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#---------------------------------------------------------------------
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# Append text to the global variable $OUT
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sub out {
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$OUT .= join('', @_);
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}
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#---------------------------------------------------------------------
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# Append text to the global variable $OUT
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sub outln {
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$OUT .= join('', @_) . "\n";
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}
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#---------------------------------------------------------------------
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# Measure a given test method with a give test pattern using the
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# global run parameters.
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#
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# @param the method to run
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# @param the pattern defining characters to test
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# @param if >0 then the number of iterations per pass. If <0 then
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# (negative of) the number of seconds per pass.
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#
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# @return a Dataset object, scaled by iterations per pass and
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# events per iteration, to give time per event
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#
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sub measure2 {
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my @data = measure1(@_);
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my $iterPerPass = shift(@data);
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my $eventPerIter = shift(@data);
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shift(@data) if (@data > 1); # discard first run
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my $ds = Dataset->new(@data);
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$ds->setScale(1.0e-3 / ($iterPerPass * $eventPerIter));
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$ds;
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}
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#---------------------------------------------------------------------
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# Measure a given test method with a give test pattern using the
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# global run parameters.
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#
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# @param the method to run
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# @param the pattern defining characters to test
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# @param if >0 then the number of iterations per pass. If <0 then
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# (negative of) the number of seconds per pass.
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#
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# @return array of:
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# [0] iterations per pass
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# [1] events per iteration
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# [2..] ms reported for each pass, in order
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#
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sub measure1 {
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my $method = shift;
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my $pat = shift;
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my $iterCount = shift; # actually might be -seconds/pass
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out("<P>Measuring $method for input file @$pat[0] for encoding @$pat[2] , ");
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if ($iterCount > 0) {
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out("$iterCount iterations/pass, $NUMPASSES passes</P>\n");
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} else {
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out(-$iterCount, " seconds/pass, $NUMPASSES passes</P>\n");
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}
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# is $iterCount actually -seconds/pass?
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if ($iterCount < 0) {
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# calibrate: estimate ms/iteration
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print "Calibrating...";
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my @t = callJava($method, $pat, -$CALIBRATE, 1);
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print "done.\n";
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my @data = split(/\s+/, $t[0]->[2]);
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$data[0] *= 1.0e+3;
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my $timePerIter = 1.0e-3 * $data[0] / $data[1];
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# determine iterations/pass
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$iterCount = int(-$iterCount / $timePerIter + 0.5);
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out("<P>Calibration pass ($CALIBRATE sec): ");
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out("$data[0] ms, ");
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out("$data[1] iterations = ");
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out(formatSeconds(4, $timePerIter), "/iteration<BR>\n");
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}
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# run passes
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print "Measuring $iterCount iterations x $NUMPASSES passes...";
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my @t = callJava($method, $pat, $iterCount, $NUMPASSES);
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print "done.\n";
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my @ms = ();
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my @b; # scratch
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for my $a (@t) {
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# $a->[0]: method name, corresponds to $method
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# $a->[1]: 'begin' data, == $iterCount
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# $a->[2]: 'end' data, of the form <ms> <loops> <eventsPerIter>
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# $a->[3...]: gc messages from JVM during pass
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@b = split(/\s+/, $a->[2]);
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push(@ms, $b[0] * 1.0e+3);
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}
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my $eventsPerIter = $b[2];
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out("Iterations per pass: $iterCount<BR>\n");
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out("Events per iteration: $eventsPerIter<BR>\n");
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my @ms_str = @ms;
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$ms_str[0] .= " (discarded)" if (@ms_str > 1);
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out("Raw times (ms/pass): ", join(", ", @ms_str), "<BR>\n");
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($iterCount, $eventsPerIter, @ms);
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}
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#---------------------------------------------------------------------
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# Invoke java to run $TESTCLASS, passing it the given parameters.
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#
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# @param the method to run
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# @param the number of iterations, or if negative, the duration
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# in seconds. If more than on pass is desired, pass in
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# a string, e.g., "100 100 100".
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# @param the pattern defining characters to test
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#
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# @return an array of results. Each result is an array REF
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# describing one pass. The array REF contains:
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# ->[0]: The method name as reported
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# ->[1]: The params on the '= <meth> begin ...' line
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# ->[2]: The params on the '= <meth> end ...' line
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# ->[3..]: GC messages from the JVM, if any
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#
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sub callJava {
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my $method = shift;
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my $pat = shift;
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my $n = shift;
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my $passes = shift;
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my $n = ($n < 0) ? "-t ".(-$n) : "-i ".$n;
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my $cmd = "java -classpath classes $TESTCLASS $method $n -p $passes -L @$pat[0] \"@$pat[1]\" \"@$pat[2]\" -r $THREADS";
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print "[$cmd]\n"; # for debugging
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open(PIPE, "$cmd|") or die "Can't run \"$cmd\"";
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my @out;
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while (<PIPE>) {
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push(@out, $_);
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}
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close(PIPE) or die "Java failed: \"$cmd\"";
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@out = grep(!/^\#/, @out); # filter out comments
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#print "[", join("\n", @out), "]\n";
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my @results;
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my $method = '';
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my $data = [];
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foreach (@out) {
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next unless (/\S/);
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if (/^=\s*(\w+)\s*(\w+)\s*(.*)/) {
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my ($m, $state, $d) = ($1, $2, $3);
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#print "$_ => [[$m $state $data]]\n";
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if ($state eq 'begin') {
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die "$method was begun but not finished" if ($method);
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$method = $m;
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push(@$data, $d);
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push(@$data, ''); # placeholder for end data
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} elsif ($state eq 'end') {
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if ($m ne $method) {
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die "$method end does not match: $_";
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}
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$data->[1] = $d; # insert end data at [1]
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#print "#$method:", join(";",@$data), "\n";
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unshift(@$data, $method); # add method to start
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push(@results, $data);
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$method = '';
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$data = [];
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} else {
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die "Can't parse: $_";
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}
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}
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elsif (/^\[/) {
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if ($method) {
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push(@$data, $_);
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} else {
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# ignore extraneous GC notices
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}
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}
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else {
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die "Can't parse: $_";
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}
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}
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die "$method was begun but not finished" if ($method);
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@results;
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}
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#|#---------------------------------------------------------------------
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#|# Format a confidence interval, as given by a Dataset. Output is as
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#|# as follows:
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#|# 241.23 - 241.98 => 241.5 +/- 0.3
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#|# 241.2 - 243.8 => 242 +/- 1
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#|# 211.0 - 241.0 => 226 +/- 15 or? 230 +/- 20
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#|# 220.3 - 234.3 => 227 +/- 7
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#|# 220.3 - 300.3 => 260 +/- 40
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#|# 220.3 - 1000 => 610 +/- 390 or? 600 +/- 400
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#|# 0.022 - 0.024 => 0.023 +/- 0.001
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#|# 0.022 - 0.032 => 0.027 +/- 0.005
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#|# 0.022 - 1.000 => 0.5 +/- 0.5
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#|# In other words, take one significant digit of the error value and
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#|# display the mean to the same precision.
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#|sub formatDataset {
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#| my $ds = shift;
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#| my $lower = $ds->getMean() - $ds->getError();
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#| my $upper = $ds->getMean() + $ds->getError();
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#| my $scale = 0;
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#| # Find how many initial digits are the same
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#| while ($lower < 1 ||
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#| int($lower) == int($upper)) {
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#| $lower *= 10;
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#| $upper *= 10;
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#| $scale++;
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#| }
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#| while ($lower >= 10 &&
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#| int($lower) == int($upper)) {
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#| $lower /= 10;
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#| $upper /= 10;
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#| $scale--;
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#| }
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#|}
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#---------------------------------------------------------------------
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# Format a number, optionally with a +/- delta, to n significant
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# digits.
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#
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# @param significant digit, a value >= 1
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# @param multiplier
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# @param time in seconds to be formatted
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# @optional delta in seconds
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#
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# @return string of the form "23" or "23 +/- 10".
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#
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sub formatNumber {
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my $sigdig = shift;
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my $mult = shift;
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my $a = shift;
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my $delta = shift; # may be undef
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my $result = formatSigDig($sigdig, $a*$mult);
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if (defined($delta)) {
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my $d = formatSigDig($sigdig, $delta*$mult);
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# restrict PRECISION of delta to that of main number
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if ($result =~ /\.(\d+)/) {
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# TODO make this work for values with all significant
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# digits to the left of the decimal, e.g., 1234000.
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# TODO the other thing wrong with this is that it
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# isn't rounding the $delta properly. Have to put
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# this logic into formatSigDig().
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my $x = length($1);
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$d =~ s/\.(\d{$x})\d+/.$1/;
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}
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$result .= " $PLUS_MINUS " . $d;
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}
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$result;
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}
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#---------------------------------------------------------------------
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# Format a time, optionally with a +/- delta, to n significant
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# digits.
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#
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# @param significant digit, a value >= 1
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# @param time in seconds to be formatted
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# @optional delta in seconds
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#
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# @return string of the form "23 ms" or "23 +/- 10 ms".
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#
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sub formatSeconds {
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my $sigdig = shift;
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my $a = shift;
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my $delta = shift; # may be undef
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my @MULT = (1 , 1e3, 1e6, 1e9);
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my @SUFF = ('s' , 'ms', 'us', 'ns');
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# Determine our scale
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my $i = 0;
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++$i while ($a*$MULT[$i] < 1 && $i < @MULT);
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formatNumber($sigdig, $MULT[$i], $a, $delta) . ' ' . $SUFF[$i];
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}
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#---------------------------------------------------------------------
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# Format a percentage, optionally with a +/- delta, to n significant
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# digits.
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#
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# @param significant digit, a value >= 1
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# @param value to be formatted, as a fraction, e.g. 0.5 for 50%
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# @optional delta, as a fraction
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#
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# @return string of the form "23 %" or "23 +/- 10 %".
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#
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sub formatPercent {
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my $sigdig = shift;
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my $a = shift;
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my $delta = shift; # may be undef
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formatNumber($sigdig, 100, $a, $delta) . ' %';
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}
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#---------------------------------------------------------------------
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# Format a number to n significant digits without using exponential
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# notation.
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#
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# @param significant digit, a value >= 1
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# @param number to be formatted
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#
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# @return string of the form "1234" "12.34" or "0.001234". If
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# number was negative, prefixed by '-'.
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#
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sub formatSigDig {
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my $n = shift() - 1;
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my $a = shift;
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local $_ = sprintf("%.${n}e", $a);
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my $sign = (s/^-//) ? '-' : '';
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my $a_e;
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my $result;
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if (/^(\d)\.(\d+)e([-+]\d+)$/) {
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my ($d, $dn, $e) = ($1, $2, $3);
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$a_e = $e;
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$d .= $dn;
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$e++;
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$d .= '0' while ($e > length($d));
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while ($e < 1) {
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$e++;
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$d = '0' . $d;
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}
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if ($e == length($d)) {
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$result = $sign . $d;
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} else {
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$result = $sign . substr($d, 0, $e) . '.' . substr($d, $e);
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}
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} else {
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die "Can't parse $_";
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}
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$result;
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}
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#eof
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