xref: /aosp_15_r20/external/icu/icu4j/perf-tests/dateformatperf.pl (revision 0e209d3975ff4a8c132096b14b0e9364a753506e) 
1*0e209d39SAndroid Build Coastguard Worker#!/usr/local/bin/perl
2*0e209d39SAndroid Build Coastguard Worker# * © 2016 and later: Unicode, Inc. and others.
3*0e209d39SAndroid Build Coastguard Worker# * License & terms of use: http://www.unicode.org/copyright.html
4*0e209d39SAndroid Build Coastguard Worker# *******************************************************************************
5*0e209d39SAndroid Build Coastguard Worker# * Copyright (C) 2002-2007 International Business Machines Corporation and     *
6*0e209d39SAndroid Build Coastguard Worker# * others. All Rights Reserved.                                                *
7*0e209d39SAndroid Build Coastguard Worker# *******************************************************************************
8*0e209d39SAndroid Build Coastguard Worker
9*0e209d39SAndroid Build Coastguard Workeruse strict;
10*0e209d39SAndroid Build Coastguard Worker
11*0e209d39SAndroid Build Coastguard Worker# Assume we are running within the icu4j root directory
12*0e209d39SAndroid Build Coastguard Workeruse lib 'src/com/ibm/icu/dev/test/perf';
13*0e209d39SAndroid Build Coastguard Workeruse Dataset;
14*0e209d39SAndroid Build Coastguard Worker
15*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
16*0e209d39SAndroid Build Coastguard Worker# Test class
17*0e209d39SAndroid Build Coastguard Workermy $TESTCLASS = 'com.ibm.icu.dev.test.perf.DateFormatPerformanceTest';
18*0e209d39SAndroid Build Coastguard Worker
19*0e209d39SAndroid Build Coastguard Workermy $CLASSES = './out/bin:../tools/misc/out/bin/:../icu4j.jar';
20*0e209d39SAndroid Build Coastguard Worker
21*0e209d39SAndroid Build Coastguard Worker# Methods to be tested.  Each pair represents a test method and
22*0e209d39SAndroid Build Coastguard Worker# a baseline method which is used for comparison.
23*0e209d39SAndroid Build Coastguard Workermy @METHODS  = (
24*0e209d39SAndroid Build Coastguard Worker                 ['TestJDKConstruction',     'TestICUConstruction'],
25*0e209d39SAndroid Build Coastguard Worker                 ['TestJDKParse',            'TestICUParse'],
26*0e209d39SAndroid Build Coastguard Worker                 ['TestJDKFormat',           'TestICUFormat']
27*0e209d39SAndroid Build Coastguard Worker               );
28*0e209d39SAndroid Build Coastguard Worker# Patterns which define the set of characters used for testing.
29*0e209d39SAndroid Build Coastguard Workermy @OPTIONS = (
30*0e209d39SAndroid Build Coastguard Worker#                 locale    pattern              date string
31*0e209d39SAndroid Build Coastguard Worker                [ "en_US",  "dddd MMM yyyy",     "15 Jan 2007"],
32*0e209d39SAndroid Build Coastguard Worker                [ "sw_KE",  "dddd MMM yyyy",     "15 Jan 2007"],
33*0e209d39SAndroid Build Coastguard Worker                [ "en_US",  "HH:mm",             "13:13"],
34*0e209d39SAndroid Build Coastguard Worker                [ "en_US",  "HH:mm zzzz",        "13:13 Pacific Standard Time"],
35*0e209d39SAndroid Build Coastguard Worker                [ "en_US",  "HH:mm z",           "13:13 PST"],
36*0e209d39SAndroid Build Coastguard Worker                [ "en_US",  "HH:mm Z",           "13:13 -0800"],
37*0e209d39SAndroid Build Coastguard Worker              );
38*0e209d39SAndroid Build Coastguard Worker
39*0e209d39SAndroid Build Coastguard Workermy $THREADS;        # number of threads (input from command-line args)
40*0e209d39SAndroid Build Coastguard Workermy $CALIBRATE = 2;  # duration in seconds for initial calibration
41*0e209d39SAndroid Build Coastguard Workermy $DURATION  = 10; # duration in seconds for each pass
42*0e209d39SAndroid Build Coastguard Workermy $NUMPASSES = 4;  # number of passes.  If > 1 then the first pass
43*0e209d39SAndroid Build Coastguard Worker                    # is discarded as a JIT warm-up pass.
44*0e209d39SAndroid Build Coastguard Worker
45*0e209d39SAndroid Build Coastguard Workermy $TABLEATTR = 'BORDER="1" CELLPADDING="4" CELLSPACING="0"';
46*0e209d39SAndroid Build Coastguard Worker
47*0e209d39SAndroid Build Coastguard Workermy $PLUS_MINUS = "±";
48*0e209d39SAndroid Build Coastguard Worker
49*0e209d39SAndroid Build Coastguard Workerif ($NUMPASSES < 3) {
50*0e209d39SAndroid Build Coastguard Worker    die "Need at least 3 passes.  One is discarded (JIT warmup) and need two to have 1 degree of freedom (t distribution).";
51*0e209d39SAndroid Build Coastguard Worker}
52*0e209d39SAndroid Build Coastguard Worker
53*0e209d39SAndroid Build Coastguard Workermy $OUT; # see out()
54*0e209d39SAndroid Build Coastguard Worker
55*0e209d39SAndroid Build Coastguard Worker# run all tests with the specified number of threads from command-line input
56*0e209d39SAndroid Build Coastguard Worker# (if there is no arguments, use $THREADS = 1)
57*0e209d39SAndroid Build Coastguard Workerforeach my $arg ($#ARGV >= 0 ? @ARGV : "1") {
58*0e209d39SAndroid Build Coastguard Worker  $THREADS = $arg;
59*0e209d39SAndroid Build Coastguard Worker  main();
60*0e209d39SAndroid Build Coastguard Worker}
61*0e209d39SAndroid Build Coastguard Worker
62*0e209d39SAndroid Build Coastguard Worker
63*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
64*0e209d39SAndroid Build Coastguard Worker# ...
65*0e209d39SAndroid Build Coastguard Workersub main {
66*0e209d39SAndroid Build Coastguard Worker    my $date = localtime;
67*0e209d39SAndroid Build Coastguard Worker    my $threads = ($THREADS > 1) ? "($THREADS threads)" : "";
68*0e209d39SAndroid Build Coastguard Worker    my $title = "ICU4J Performance Test $threads $date";
69*0e209d39SAndroid Build Coastguard Worker
70*0e209d39SAndroid Build Coastguard Worker    my $html = $date;
71*0e209d39SAndroid Build Coastguard Worker    $html =~ s/://g; # ':' illegal
72*0e209d39SAndroid Build Coastguard Worker    $html =~ s/\s*\d+$//; # delete year
73*0e209d39SAndroid Build Coastguard Worker    $html =~ s/^\w+\s*//; # delete dow
74*0e209d39SAndroid Build Coastguard Worker    $html = "perf $html.html";
75*0e209d39SAndroid Build Coastguard Worker
76*0e209d39SAndroid Build Coastguard Worker    open(HTML,">$html") or die "Can't write to $html: $!";
77*0e209d39SAndroid Build Coastguard Worker
78*0e209d39SAndroid Build Coastguard Worker    print HTML <<EOF;
79*0e209d39SAndroid Build Coastguard Worker<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
80*0e209d39SAndroid Build Coastguard Worker   "http://www.w3.org/TR/html4/strict.dtd">
81*0e209d39SAndroid Build Coastguard Worker<HTML>
82*0e209d39SAndroid Build Coastguard Worker   <HEAD>
83*0e209d39SAndroid Build Coastguard Worker      <TITLE>$title</TITLE>
84*0e209d39SAndroid Build Coastguard Worker   </HEAD>
85*0e209d39SAndroid Build Coastguard Worker   <BODY>
86*0e209d39SAndroid Build Coastguard WorkerEOF
87*0e209d39SAndroid Build Coastguard Worker    print HTML "<H1>$title</H1>\n";
88*0e209d39SAndroid Build Coastguard Worker
89*0e209d39SAndroid Build Coastguard Worker    print HTML "<H2>$TESTCLASS</H2>\n";
90*0e209d39SAndroid Build Coastguard Worker
91*0e209d39SAndroid Build Coastguard Worker    my $raw = "";
92*0e209d39SAndroid Build Coastguard Worker
93*0e209d39SAndroid Build Coastguard Worker    for my $methodPair (@METHODS) {
94*0e209d39SAndroid Build Coastguard Worker
95*0e209d39SAndroid Build Coastguard Worker        my $testMethod = $methodPair->[0];
96*0e209d39SAndroid Build Coastguard Worker        my $baselineMethod = $methodPair->[1];
97*0e209d39SAndroid Build Coastguard Worker
98*0e209d39SAndroid Build Coastguard Worker        print HTML "<P><TABLE $TABLEATTR><TR><TD>\n";
99*0e209d39SAndroid Build Coastguard Worker        print HTML "<P><B>$testMethod vs. $baselineMethod</B></P>\n";
100*0e209d39SAndroid Build Coastguard Worker
101*0e209d39SAndroid Build Coastguard Worker        print HTML "<P><TABLE $TABLEATTR BGCOLOR=\"#CCFFFF\">\n";
102*0e209d39SAndroid Build Coastguard Worker        print HTML "<TR><TD>Options</TD><TD>$testMethod</TD>";
103*0e209d39SAndroid Build Coastguard Worker        print HTML "<TD>$baselineMethod</TD><TD>Ratio</TD></TR>\n";
104*0e209d39SAndroid Build Coastguard Worker
105*0e209d39SAndroid Build Coastguard Worker        $OUT = '';
106*0e209d39SAndroid Build Coastguard Worker
107*0e209d39SAndroid Build Coastguard Worker        for my $pat (@OPTIONS) {
108*0e209d39SAndroid Build Coastguard Worker            print HTML "<TR><TD>@$pat[0], \"@$pat[1]\", \"@$pat[2]\"</TD>\n";
109*0e209d39SAndroid Build Coastguard Worker
110*0e209d39SAndroid Build Coastguard Worker            out("<P><TABLE $TABLEATTR WIDTH=\"100%\">");
111*0e209d39SAndroid Build Coastguard Worker
112*0e209d39SAndroid Build Coastguard Worker            # measure the test method
113*0e209d39SAndroid Build Coastguard Worker            out("<TR><TD>");
114*0e209d39SAndroid Build Coastguard Worker            print "\n$testMethod [@$pat]\n";
115*0e209d39SAndroid Build Coastguard Worker            my $t = measure2($testMethod, $pat, -$DURATION);
116*0e209d39SAndroid Build Coastguard Worker            out("</TD></TR>");
117*0e209d39SAndroid Build Coastguard Worker            print HTML "<TD>", formatSeconds(4, $t->getMean(), $t->getError);
118*0e209d39SAndroid Build Coastguard Worker            print HTML "/event</TD>\n";
119*0e209d39SAndroid Build Coastguard Worker
120*0e209d39SAndroid Build Coastguard Worker            # measure baseline method
121*0e209d39SAndroid Build Coastguard Worker            out("<TR><TD>");
122*0e209d39SAndroid Build Coastguard Worker            print "\n$baselineMethod [@$pat]\n";
123*0e209d39SAndroid Build Coastguard Worker            my $b = measure2($baselineMethod, $pat, -$DURATION);
124*0e209d39SAndroid Build Coastguard Worker            out("</TD></TR>");
125*0e209d39SAndroid Build Coastguard Worker            print HTML "<TD>", formatSeconds(4, $b->getMean(), $t->getError);
126*0e209d39SAndroid Build Coastguard Worker            print HTML "/event</TD>\n";
127*0e209d39SAndroid Build Coastguard Worker
128*0e209d39SAndroid Build Coastguard Worker            out("</TABLE></P>");
129*0e209d39SAndroid Build Coastguard Worker
130*0e209d39SAndroid Build Coastguard Worker            # output ratio
131*0e209d39SAndroid Build Coastguard Worker            my $r = $t->divide($b);
132*0e209d39SAndroid Build Coastguard Worker            my $mean = $r->getMean() - 1;
133*0e209d39SAndroid Build Coastguard Worker            my $color = $mean < 0 ? "RED" : "BLACK";
134*0e209d39SAndroid Build Coastguard Worker            print HTML "<TD><B><FONT COLOR=\"$color\">", formatPercent(3, $mean, $r->getError);
135*0e209d39SAndroid Build Coastguard Worker            print HTML "</FONT></B></TD></TR>\n";
136*0e209d39SAndroid Build Coastguard Worker        }
137*0e209d39SAndroid Build Coastguard Worker
138*0e209d39SAndroid Build Coastguard Worker        print HTML "</TABLE></P>\n";
139*0e209d39SAndroid Build Coastguard Worker
140*0e209d39SAndroid Build Coastguard Worker        print HTML "<P>Raw data:</P>\n";
141*0e209d39SAndroid Build Coastguard Worker        print HTML $OUT;
142*0e209d39SAndroid Build Coastguard Worker        print HTML "</TABLE></P>\n";
143*0e209d39SAndroid Build Coastguard Worker    }
144*0e209d39SAndroid Build Coastguard Worker
145*0e209d39SAndroid Build Coastguard Worker    print HTML <<EOF;
146*0e209d39SAndroid Build Coastguard Worker   </BODY>
147*0e209d39SAndroid Build Coastguard Worker</HTML>
148*0e209d39SAndroid Build Coastguard WorkerEOF
149*0e209d39SAndroid Build Coastguard Worker    close(HTML) or die "Can't close $html: $!";
150*0e209d39SAndroid Build Coastguard Worker}
151*0e209d39SAndroid Build Coastguard Worker
152*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
153*0e209d39SAndroid Build Coastguard Worker# Append text to the global variable $OUT
154*0e209d39SAndroid Build Coastguard Workersub out {
155*0e209d39SAndroid Build Coastguard Worker    $OUT .= join('', @_);
156*0e209d39SAndroid Build Coastguard Worker}
157*0e209d39SAndroid Build Coastguard Worker
158*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
159*0e209d39SAndroid Build Coastguard Worker# Append text to the global variable $OUT
160*0e209d39SAndroid Build Coastguard Workersub outln {
161*0e209d39SAndroid Build Coastguard Worker    $OUT .= join('', @_) . "\n";
162*0e209d39SAndroid Build Coastguard Worker}
163*0e209d39SAndroid Build Coastguard Worker
164*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
165*0e209d39SAndroid Build Coastguard Worker# Measure a given test method with a give test pattern using the
166*0e209d39SAndroid Build Coastguard Worker# global run parameters.
167*0e209d39SAndroid Build Coastguard Worker#
168*0e209d39SAndroid Build Coastguard Worker# @param the method to run
169*0e209d39SAndroid Build Coastguard Worker# @param the pattern defining characters to test
170*0e209d39SAndroid Build Coastguard Worker# @param if >0 then the number of iterations per pass.  If <0 then
171*0e209d39SAndroid Build Coastguard Worker#        (negative of) the number of seconds per pass.
172*0e209d39SAndroid Build Coastguard Worker#
173*0e209d39SAndroid Build Coastguard Worker# @return a Dataset object, scaled by iterations per pass and
174*0e209d39SAndroid Build Coastguard Worker#         events per iteration, to give time per event
175*0e209d39SAndroid Build Coastguard Worker#
176*0e209d39SAndroid Build Coastguard Workersub measure2 {
177*0e209d39SAndroid Build Coastguard Worker    my @data = measure1(@_);
178*0e209d39SAndroid Build Coastguard Worker    my $iterPerPass = shift(@data);
179*0e209d39SAndroid Build Coastguard Worker    my $eventPerIter = shift(@data);
180*0e209d39SAndroid Build Coastguard Worker
181*0e209d39SAndroid Build Coastguard Worker    shift(@data) if (@data > 1); # discard first run
182*0e209d39SAndroid Build Coastguard Worker
183*0e209d39SAndroid Build Coastguard Worker    my $ds = Dataset->new(@data);
184*0e209d39SAndroid Build Coastguard Worker    $ds->setScale(1.0e-3 / ($iterPerPass * $eventPerIter));
185*0e209d39SAndroid Build Coastguard Worker    $ds;
186*0e209d39SAndroid Build Coastguard Worker}
187*0e209d39SAndroid Build Coastguard Worker
188*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
189*0e209d39SAndroid Build Coastguard Worker# Measure a given test method with a give test pattern using the
190*0e209d39SAndroid Build Coastguard Worker# global run parameters.
191*0e209d39SAndroid Build Coastguard Worker#
192*0e209d39SAndroid Build Coastguard Worker# @param the method to run
193*0e209d39SAndroid Build Coastguard Worker# @param the pattern defining characters to test
194*0e209d39SAndroid Build Coastguard Worker# @param if >0 then the number of iterations per pass.  If <0 then
195*0e209d39SAndroid Build Coastguard Worker#        (negative of) the number of seconds per pass.
196*0e209d39SAndroid Build Coastguard Worker#
197*0e209d39SAndroid Build Coastguard Worker# @return array of:
198*0e209d39SAndroid Build Coastguard Worker#         [0] iterations per pass
199*0e209d39SAndroid Build Coastguard Worker#         [1] events per iteration
200*0e209d39SAndroid Build Coastguard Worker#         [2..] ms reported for each pass, in order
201*0e209d39SAndroid Build Coastguard Worker#
202*0e209d39SAndroid Build Coastguard Workersub measure1 {
203*0e209d39SAndroid Build Coastguard Worker    my $method = shift;
204*0e209d39SAndroid Build Coastguard Worker    my $pat = shift;
205*0e209d39SAndroid Build Coastguard Worker    my $iterCount = shift; # actually might be -seconds/pass
206*0e209d39SAndroid Build Coastguard Worker
207*0e209d39SAndroid Build Coastguard Worker    out("<P>Measuring $method for input file @$pat[0] for encoding @$pat[2] , ");
208*0e209d39SAndroid Build Coastguard Worker    if ($iterCount > 0) {
209*0e209d39SAndroid Build Coastguard Worker        out("$iterCount iterations/pass, $NUMPASSES passes</P>\n");
210*0e209d39SAndroid Build Coastguard Worker    } else {
211*0e209d39SAndroid Build Coastguard Worker        out(-$iterCount, " seconds/pass, $NUMPASSES passes</P>\n");
212*0e209d39SAndroid Build Coastguard Worker    }
213*0e209d39SAndroid Build Coastguard Worker
214*0e209d39SAndroid Build Coastguard Worker    # is $iterCount actually -seconds/pass?
215*0e209d39SAndroid Build Coastguard Worker    if ($iterCount < 0) {
216*0e209d39SAndroid Build Coastguard Worker
217*0e209d39SAndroid Build Coastguard Worker        # calibrate: estimate ms/iteration
218*0e209d39SAndroid Build Coastguard Worker        print "Calibrating...";
219*0e209d39SAndroid Build Coastguard Worker        my @t = callJava($method, $pat, -$CALIBRATE, 1);
220*0e209d39SAndroid Build Coastguard Worker        print "done.\n";
221*0e209d39SAndroid Build Coastguard Worker
222*0e209d39SAndroid Build Coastguard Worker        my @data = split(/\s+/, $t[0]->[2]);
223*0e209d39SAndroid Build Coastguard Worker        $data[0] *= 1.0e+3;
224*0e209d39SAndroid Build Coastguard Worker
225*0e209d39SAndroid Build Coastguard Worker        my $timePerIter = 1.0e-3 * $data[0] / $data[1];
226*0e209d39SAndroid Build Coastguard Worker
227*0e209d39SAndroid Build Coastguard Worker        # determine iterations/pass
228*0e209d39SAndroid Build Coastguard Worker        $iterCount = int(-$iterCount / $timePerIter + 0.5);
229*0e209d39SAndroid Build Coastguard Worker
230*0e209d39SAndroid Build Coastguard Worker        out("<P>Calibration pass ($CALIBRATE sec): ");
231*0e209d39SAndroid Build Coastguard Worker        out("$data[0] ms, ");
232*0e209d39SAndroid Build Coastguard Worker        out("$data[1] iterations = ");
233*0e209d39SAndroid Build Coastguard Worker        out(formatSeconds(4, $timePerIter), "/iteration<BR>\n");
234*0e209d39SAndroid Build Coastguard Worker    }
235*0e209d39SAndroid Build Coastguard Worker
236*0e209d39SAndroid Build Coastguard Worker    # run passes
237*0e209d39SAndroid Build Coastguard Worker    print "Measuring $iterCount iterations x $NUMPASSES passes...";
238*0e209d39SAndroid Build Coastguard Worker    my @t = callJava($method, $pat, $iterCount, $NUMPASSES);
239*0e209d39SAndroid Build Coastguard Worker    print "done.\n";
240*0e209d39SAndroid Build Coastguard Worker    my @ms = ();
241*0e209d39SAndroid Build Coastguard Worker    my @b; # scratch
242*0e209d39SAndroid Build Coastguard Worker    for my $a (@t) {
243*0e209d39SAndroid Build Coastguard Worker        # $a->[0]: method name, corresponds to $method
244*0e209d39SAndroid Build Coastguard Worker        # $a->[1]: 'begin' data, == $iterCount
245*0e209d39SAndroid Build Coastguard Worker        # $a->[2]: 'end' data, of the form <ms> <loops> <eventsPerIter>
246*0e209d39SAndroid Build Coastguard Worker        # $a->[3...]: gc messages from JVM during pass
247*0e209d39SAndroid Build Coastguard Worker        @b = split(/\s+/, $a->[2]);
248*0e209d39SAndroid Build Coastguard Worker        push(@ms, $b[0] * 1.0e+3);
249*0e209d39SAndroid Build Coastguard Worker    }
250*0e209d39SAndroid Build Coastguard Worker    my $eventsPerIter = $b[2];
251*0e209d39SAndroid Build Coastguard Worker
252*0e209d39SAndroid Build Coastguard Worker    out("Iterations per pass: $iterCount<BR>\n");
253*0e209d39SAndroid Build Coastguard Worker    out("Events per iteration: $eventsPerIter<BR>\n");
254*0e209d39SAndroid Build Coastguard Worker
255*0e209d39SAndroid Build Coastguard Worker    my @ms_str = @ms;
256*0e209d39SAndroid Build Coastguard Worker    $ms_str[0] .= " (discarded)" if (@ms_str > 1);
257*0e209d39SAndroid Build Coastguard Worker    out("Raw times (ms/pass): ", join(", ", @ms_str), "<BR>\n");
258*0e209d39SAndroid Build Coastguard Worker
259*0e209d39SAndroid Build Coastguard Worker    ($iterCount, $eventsPerIter, @ms);
260*0e209d39SAndroid Build Coastguard Worker}
261*0e209d39SAndroid Build Coastguard Worker
262*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
263*0e209d39SAndroid Build Coastguard Worker# Invoke java to run $TESTCLASS, passing it the given parameters.
264*0e209d39SAndroid Build Coastguard Worker#
265*0e209d39SAndroid Build Coastguard Worker# @param the method to run
266*0e209d39SAndroid Build Coastguard Worker# @param the number of iterations, or if negative, the duration
267*0e209d39SAndroid Build Coastguard Worker#        in seconds.  If more than on pass is desired, pass in
268*0e209d39SAndroid Build Coastguard Worker#        a string, e.g., "100 100 100".
269*0e209d39SAndroid Build Coastguard Worker# @param the pattern defining characters to test
270*0e209d39SAndroid Build Coastguard Worker#
271*0e209d39SAndroid Build Coastguard Worker# @return an array of results.  Each result is an array REF
272*0e209d39SAndroid Build Coastguard Worker#         describing one pass.  The array REF contains:
273*0e209d39SAndroid Build Coastguard Worker#         ->[0]: The method name as reported
274*0e209d39SAndroid Build Coastguard Worker#         ->[1]: The params on the '= <meth> begin ...' line
275*0e209d39SAndroid Build Coastguard Worker#         ->[2]: The params on the '= <meth> end ...' line
276*0e209d39SAndroid Build Coastguard Worker#         ->[3..]: GC messages from the JVM, if any
277*0e209d39SAndroid Build Coastguard Worker#
278*0e209d39SAndroid Build Coastguard Workersub callJava {
279*0e209d39SAndroid Build Coastguard Worker    my $method = shift;
280*0e209d39SAndroid Build Coastguard Worker    my $pat = shift;
281*0e209d39SAndroid Build Coastguard Worker    my $n = shift;
282*0e209d39SAndroid Build Coastguard Worker    my $passes = shift;
283*0e209d39SAndroid Build Coastguard Worker
284*0e209d39SAndroid Build Coastguard Worker    my $n = ($n < 0) ? "-t ".(-$n) : "-i ".$n;
285*0e209d39SAndroid Build Coastguard Worker
286*0e209d39SAndroid Build Coastguard Worker    my $cmd = "java -classpath $CLASSES $TESTCLASS $method $n -p $passes -L @$pat[0] \"@$pat[1]\" \"@$pat[2]\" -r $THREADS";
287*0e209d39SAndroid Build Coastguard Worker    print "[$cmd]\n"; # for debugging
288*0e209d39SAndroid Build Coastguard Worker    open(PIPE, "$cmd|") or die "Can't run \"$cmd\"";
289*0e209d39SAndroid Build Coastguard Worker    my @out;
290*0e209d39SAndroid Build Coastguard Worker    while (<PIPE>) {
291*0e209d39SAndroid Build Coastguard Worker        push(@out, $_);
292*0e209d39SAndroid Build Coastguard Worker    }
293*0e209d39SAndroid Build Coastguard Worker    close(PIPE) or die "Java failed: \"$cmd\"";
294*0e209d39SAndroid Build Coastguard Worker
295*0e209d39SAndroid Build Coastguard Worker    @out = grep(!/^\#/, @out);  # filter out comments
296*0e209d39SAndroid Build Coastguard Worker
297*0e209d39SAndroid Build Coastguard Worker    #print "[", join("\n", @out), "]\n";
298*0e209d39SAndroid Build Coastguard Worker
299*0e209d39SAndroid Build Coastguard Worker    my @results;
300*0e209d39SAndroid Build Coastguard Worker    my $method = '';
301*0e209d39SAndroid Build Coastguard Worker    my $data = [];
302*0e209d39SAndroid Build Coastguard Worker    foreach (@out) {
303*0e209d39SAndroid Build Coastguard Worker        next unless (/\S/);
304*0e209d39SAndroid Build Coastguard Worker
305*0e209d39SAndroid Build Coastguard Worker        if (/^=\s*(\w+)\s*(\w+)\s*(.*)/) {
306*0e209d39SAndroid Build Coastguard Worker            my ($m, $state, $d) = ($1, $2, $3);
307*0e209d39SAndroid Build Coastguard Worker            #print "$_ => [[$m $state $data]]\n";
308*0e209d39SAndroid Build Coastguard Worker            if ($state eq 'begin') {
309*0e209d39SAndroid Build Coastguard Worker                die "$method was begun but not finished" if ($method);
310*0e209d39SAndroid Build Coastguard Worker                $method = $m;
311*0e209d39SAndroid Build Coastguard Worker                push(@$data, $d);
312*0e209d39SAndroid Build Coastguard Worker                push(@$data, ''); # placeholder for end data
313*0e209d39SAndroid Build Coastguard Worker            } elsif ($state eq 'end') {
314*0e209d39SAndroid Build Coastguard Worker                if ($m ne $method) {
315*0e209d39SAndroid Build Coastguard Worker                    die "$method end does not match: $_";
316*0e209d39SAndroid Build Coastguard Worker                }
317*0e209d39SAndroid Build Coastguard Worker                $data->[1] = $d; # insert end data at [1]
318*0e209d39SAndroid Build Coastguard Worker                #print "#$method:", join(";",@$data), "\n";
319*0e209d39SAndroid Build Coastguard Worker                unshift(@$data, $method); # add method to start
320*0e209d39SAndroid Build Coastguard Worker
321*0e209d39SAndroid Build Coastguard Worker                push(@results, $data);
322*0e209d39SAndroid Build Coastguard Worker                $method = '';
323*0e209d39SAndroid Build Coastguard Worker                $data = [];
324*0e209d39SAndroid Build Coastguard Worker            } else {
325*0e209d39SAndroid Build Coastguard Worker                die "Can't parse: $_";
326*0e209d39SAndroid Build Coastguard Worker            }
327*0e209d39SAndroid Build Coastguard Worker        }
328*0e209d39SAndroid Build Coastguard Worker
329*0e209d39SAndroid Build Coastguard Worker        elsif (/^\[/) {
330*0e209d39SAndroid Build Coastguard Worker            if ($method) {
331*0e209d39SAndroid Build Coastguard Worker                push(@$data, $_);
332*0e209d39SAndroid Build Coastguard Worker            } else {
333*0e209d39SAndroid Build Coastguard Worker                # ignore extraneous GC notices
334*0e209d39SAndroid Build Coastguard Worker            }
335*0e209d39SAndroid Build Coastguard Worker        }
336*0e209d39SAndroid Build Coastguard Worker
337*0e209d39SAndroid Build Coastguard Worker        else {
338*0e209d39SAndroid Build Coastguard Worker            die "Can't parse: $_";
339*0e209d39SAndroid Build Coastguard Worker        }
340*0e209d39SAndroid Build Coastguard Worker    }
341*0e209d39SAndroid Build Coastguard Worker
342*0e209d39SAndroid Build Coastguard Worker    die "$method was begun but not finished" if ($method);
343*0e209d39SAndroid Build Coastguard Worker
344*0e209d39SAndroid Build Coastguard Worker    @results;
345*0e209d39SAndroid Build Coastguard Worker}
346*0e209d39SAndroid Build Coastguard Worker
347*0e209d39SAndroid Build Coastguard Worker#|#---------------------------------------------------------------------
348*0e209d39SAndroid Build Coastguard Worker#|# Format a confidence interval, as given by a Dataset.  Output is as
349*0e209d39SAndroid Build Coastguard Worker#|# as follows:
350*0e209d39SAndroid Build Coastguard Worker#|#   241.23 - 241.98 => 241.5 +/- 0.3
351*0e209d39SAndroid Build Coastguard Worker#|#   241.2 - 243.8 => 242 +/- 1
352*0e209d39SAndroid Build Coastguard Worker#|#   211.0 - 241.0 => 226 +/- 15 or? 230 +/- 20
353*0e209d39SAndroid Build Coastguard Worker#|#   220.3 - 234.3 => 227 +/- 7
354*0e209d39SAndroid Build Coastguard Worker#|#   220.3 - 300.3 => 260 +/- 40
355*0e209d39SAndroid Build Coastguard Worker#|#   220.3 - 1000 => 610 +/- 390 or? 600 +/- 400
356*0e209d39SAndroid Build Coastguard Worker#|#   0.022 - 0.024 => 0.023 +/- 0.001
357*0e209d39SAndroid Build Coastguard Worker#|#   0.022 - 0.032 => 0.027 +/- 0.005
358*0e209d39SAndroid Build Coastguard Worker#|#   0.022 - 1.000 => 0.5 +/- 0.5
359*0e209d39SAndroid Build Coastguard Worker#|# In other words, take one significant digit of the error value and
360*0e209d39SAndroid Build Coastguard Worker#|# display the mean to the same precision.
361*0e209d39SAndroid Build Coastguard Worker#|sub formatDataset {
362*0e209d39SAndroid Build Coastguard Worker#|    my $ds = shift;
363*0e209d39SAndroid Build Coastguard Worker#|    my $lower = $ds->getMean() - $ds->getError();
364*0e209d39SAndroid Build Coastguard Worker#|    my $upper = $ds->getMean() + $ds->getError();
365*0e209d39SAndroid Build Coastguard Worker#|    my $scale = 0;
366*0e209d39SAndroid Build Coastguard Worker#|    # Find how many initial digits are the same
367*0e209d39SAndroid Build Coastguard Worker#|    while ($lower < 1 ||
368*0e209d39SAndroid Build Coastguard Worker#|           int($lower) == int($upper)) {
369*0e209d39SAndroid Build Coastguard Worker#|        $lower *= 10;
370*0e209d39SAndroid Build Coastguard Worker#|        $upper *= 10;
371*0e209d39SAndroid Build Coastguard Worker#|        $scale++;
372*0e209d39SAndroid Build Coastguard Worker#|    }
373*0e209d39SAndroid Build Coastguard Worker#|    while ($lower >= 10 &&
374*0e209d39SAndroid Build Coastguard Worker#|           int($lower) == int($upper)) {
375*0e209d39SAndroid Build Coastguard Worker#|        $lower /= 10;
376*0e209d39SAndroid Build Coastguard Worker#|        $upper /= 10;
377*0e209d39SAndroid Build Coastguard Worker#|        $scale--;
378*0e209d39SAndroid Build Coastguard Worker#|    }
379*0e209d39SAndroid Build Coastguard Worker#|}
380*0e209d39SAndroid Build Coastguard Worker
381*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
382*0e209d39SAndroid Build Coastguard Worker# Format a number, optionally with a +/- delta, to n significant
383*0e209d39SAndroid Build Coastguard Worker# digits.
384*0e209d39SAndroid Build Coastguard Worker#
385*0e209d39SAndroid Build Coastguard Worker# @param significant digit, a value >= 1
386*0e209d39SAndroid Build Coastguard Worker# @param multiplier
387*0e209d39SAndroid Build Coastguard Worker# @param time in seconds to be formatted
388*0e209d39SAndroid Build Coastguard Worker# @optional delta in seconds
389*0e209d39SAndroid Build Coastguard Worker#
390*0e209d39SAndroid Build Coastguard Worker# @return string of the form "23" or "23 +/- 10".
391*0e209d39SAndroid Build Coastguard Worker#
392*0e209d39SAndroid Build Coastguard Workersub formatNumber {
393*0e209d39SAndroid Build Coastguard Worker    my $sigdig = shift;
394*0e209d39SAndroid Build Coastguard Worker    my $mult = shift;
395*0e209d39SAndroid Build Coastguard Worker    my $a = shift;
396*0e209d39SAndroid Build Coastguard Worker    my $delta = shift; # may be undef
397*0e209d39SAndroid Build Coastguard Worker
398*0e209d39SAndroid Build Coastguard Worker    my $result = formatSigDig($sigdig, $a*$mult);
399*0e209d39SAndroid Build Coastguard Worker    if (defined($delta)) {
400*0e209d39SAndroid Build Coastguard Worker        my $d = formatSigDig($sigdig, $delta*$mult);
401*0e209d39SAndroid Build Coastguard Worker        # restrict PRECISION of delta to that of main number
402*0e209d39SAndroid Build Coastguard Worker        if ($result =~ /\.(\d+)/) {
403*0e209d39SAndroid Build Coastguard Worker            # TODO make this work for values with all significant
404*0e209d39SAndroid Build Coastguard Worker            # digits to the left of the decimal, e.g., 1234000.
405*0e209d39SAndroid Build Coastguard Worker
406*0e209d39SAndroid Build Coastguard Worker            # TODO the other thing wrong with this is that it
407*0e209d39SAndroid Build Coastguard Worker            # isn't rounding the $delta properly.  Have to put
408*0e209d39SAndroid Build Coastguard Worker            # this logic into formatSigDig().
409*0e209d39SAndroid Build Coastguard Worker            my $x = length($1);
410*0e209d39SAndroid Build Coastguard Worker            $d =~ s/\.(\d{$x})\d+/.$1/;
411*0e209d39SAndroid Build Coastguard Worker        }
412*0e209d39SAndroid Build Coastguard Worker        $result .= " $PLUS_MINUS " . $d;
413*0e209d39SAndroid Build Coastguard Worker    }
414*0e209d39SAndroid Build Coastguard Worker    $result;
415*0e209d39SAndroid Build Coastguard Worker}
416*0e209d39SAndroid Build Coastguard Worker
417*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
418*0e209d39SAndroid Build Coastguard Worker# Format a time, optionally with a +/- delta, to n significant
419*0e209d39SAndroid Build Coastguard Worker# digits.
420*0e209d39SAndroid Build Coastguard Worker#
421*0e209d39SAndroid Build Coastguard Worker# @param significant digit, a value >= 1
422*0e209d39SAndroid Build Coastguard Worker# @param time in seconds to be formatted
423*0e209d39SAndroid Build Coastguard Worker# @optional delta in seconds
424*0e209d39SAndroid Build Coastguard Worker#
425*0e209d39SAndroid Build Coastguard Worker# @return string of the form "23 ms" or "23 +/- 10 ms".
426*0e209d39SAndroid Build Coastguard Worker#
427*0e209d39SAndroid Build Coastguard Workersub formatSeconds {
428*0e209d39SAndroid Build Coastguard Worker    my $sigdig = shift;
429*0e209d39SAndroid Build Coastguard Worker    my $a = shift;
430*0e209d39SAndroid Build Coastguard Worker    my $delta = shift; # may be undef
431*0e209d39SAndroid Build Coastguard Worker
432*0e209d39SAndroid Build Coastguard Worker    my @MULT = (1   , 1e3,  1e6,  1e9);
433*0e209d39SAndroid Build Coastguard Worker    my @SUFF = ('s' , 'ms', 'us', 'ns');
434*0e209d39SAndroid Build Coastguard Worker
435*0e209d39SAndroid Build Coastguard Worker    # Determine our scale
436*0e209d39SAndroid Build Coastguard Worker    my $i = 0;
437*0e209d39SAndroid Build Coastguard Worker    ++$i while ($a*$MULT[$i] < 1 && $i < @MULT);
438*0e209d39SAndroid Build Coastguard Worker
439*0e209d39SAndroid Build Coastguard Worker    formatNumber($sigdig, $MULT[$i], $a, $delta) . ' ' . $SUFF[$i];
440*0e209d39SAndroid Build Coastguard Worker}
441*0e209d39SAndroid Build Coastguard Worker
442*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
443*0e209d39SAndroid Build Coastguard Worker# Format a percentage, optionally with a +/- delta, to n significant
444*0e209d39SAndroid Build Coastguard Worker# digits.
445*0e209d39SAndroid Build Coastguard Worker#
446*0e209d39SAndroid Build Coastguard Worker# @param significant digit, a value >= 1
447*0e209d39SAndroid Build Coastguard Worker# @param value to be formatted, as a fraction, e.g. 0.5 for 50%
448*0e209d39SAndroid Build Coastguard Worker# @optional delta, as a fraction
449*0e209d39SAndroid Build Coastguard Worker#
450*0e209d39SAndroid Build Coastguard Worker# @return string of the form "23 %" or "23 +/- 10 %".
451*0e209d39SAndroid Build Coastguard Worker#
452*0e209d39SAndroid Build Coastguard Workersub formatPercent {
453*0e209d39SAndroid Build Coastguard Worker    my $sigdig = shift;
454*0e209d39SAndroid Build Coastguard Worker    my $a = shift;
455*0e209d39SAndroid Build Coastguard Worker    my $delta = shift; # may be undef
456*0e209d39SAndroid Build Coastguard Worker
457*0e209d39SAndroid Build Coastguard Worker    formatNumber($sigdig, 100, $a, $delta) . ' %';
458*0e209d39SAndroid Build Coastguard Worker}
459*0e209d39SAndroid Build Coastguard Worker
460*0e209d39SAndroid Build Coastguard Worker#---------------------------------------------------------------------
461*0e209d39SAndroid Build Coastguard Worker# Format a number to n significant digits without using exponential
462*0e209d39SAndroid Build Coastguard Worker# notation.
463*0e209d39SAndroid Build Coastguard Worker#
464*0e209d39SAndroid Build Coastguard Worker# @param significant digit, a value >= 1
465*0e209d39SAndroid Build Coastguard Worker# @param number to be formatted
466*0e209d39SAndroid Build Coastguard Worker#
467*0e209d39SAndroid Build Coastguard Worker# @return string of the form "1234" "12.34" or "0.001234".  If
468*0e209d39SAndroid Build Coastguard Worker#         number was negative, prefixed by '-'.
469*0e209d39SAndroid Build Coastguard Worker#
470*0e209d39SAndroid Build Coastguard Workersub formatSigDig {
471*0e209d39SAndroid Build Coastguard Worker    my $n = shift() - 1;
472*0e209d39SAndroid Build Coastguard Worker    my $a = shift;
473*0e209d39SAndroid Build Coastguard Worker
474*0e209d39SAndroid Build Coastguard Worker    local $_ = sprintf("%.${n}e", $a);
475*0e209d39SAndroid Build Coastguard Worker    my $sign = (s/^-//) ? '-' : '';
476*0e209d39SAndroid Build Coastguard Worker
477*0e209d39SAndroid Build Coastguard Worker    my $a_e;
478*0e209d39SAndroid Build Coastguard Worker    my $result;
479*0e209d39SAndroid Build Coastguard Worker    if (/^(\d)\.(\d+)e([-+]\d+)$/) {
480*0e209d39SAndroid Build Coastguard Worker        my ($d, $dn, $e) = ($1, $2, $3);
481*0e209d39SAndroid Build Coastguard Worker        $a_e = $e;
482*0e209d39SAndroid Build Coastguard Worker        $d .= $dn;
483*0e209d39SAndroid Build Coastguard Worker        $e++;
484*0e209d39SAndroid Build Coastguard Worker        $d .= '0' while ($e > length($d));
485*0e209d39SAndroid Build Coastguard Worker        while ($e < 1) {
486*0e209d39SAndroid Build Coastguard Worker            $e++;
487*0e209d39SAndroid Build Coastguard Worker            $d = '0' . $d;
488*0e209d39SAndroid Build Coastguard Worker        }
489*0e209d39SAndroid Build Coastguard Worker        if ($e == length($d)) {
490*0e209d39SAndroid Build Coastguard Worker            $result = $sign . $d;
491*0e209d39SAndroid Build Coastguard Worker        } else {
492*0e209d39SAndroid Build Coastguard Worker            $result = $sign . substr($d, 0, $e) . '.' . substr($d, $e);
493*0e209d39SAndroid Build Coastguard Worker        }
494*0e209d39SAndroid Build Coastguard Worker    } else {
495*0e209d39SAndroid Build Coastguard Worker        die "Can't parse $_";
496*0e209d39SAndroid Build Coastguard Worker    }
497*0e209d39SAndroid Build Coastguard Worker    $result;
498*0e209d39SAndroid Build Coastguard Worker}
499*0e209d39SAndroid Build Coastguard Worker
500*0e209d39SAndroid Build Coastguard Worker#eof
501