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Comparing JSON-XS/eg/bench (file contents):
Revision 1.8 by root, Tue Apr 3 23:59:04 2007 UTC vs.
Revision 1.12 by root, Mon Jun 11 03:21:19 2007 UTC

1#!/opt/bin/perl 1#!/opt/bin/perl
2 2
3# Usage: bench json-file 3# Usage: bench json-file
4
5# which modules to test (JSON usually excluded because its so slow)
6my %tst = (
7 "JSON" => ['objToJson $perl' , 'jsonToObj $json'],
8 "JSON::DWIW" => ['$dwiw->to_json ($perl)', '$dwiw->from_json ($json)'],
9 "JSON::PC" => ['$pc->convert ($perl)' , '$pc->parse ($json)'],
10 "JSON::Syck" => ['JSON::Syck::Dump $perl', 'JSON::Syck::Load $json'],
11 "JSON::XS" => ['to_json $perl' , 'from_json $json'],
12 "JSON::XS/2" => ['$xs2->encode ($perl)' , '$xs2->decode ($json)'],
13 "JSON::XS/3" => ['$xs3->encode ($perl)' , '$xs3->decode ($json)'],
14 "Storable" => ['Storable::nfreeze $perl', 'Storable::thaw $pst'],
15);
4 16
5use JSON; 17use JSON;
6use JSON::DWIW; 18use JSON::DWIW;
7use JSON::PC; 19use JSON::PC;
8use JSON::XS qw(to_json from_json); 20use JSON::XS qw(to_json from_json);
9use JSON::Syck; 21use JSON::Syck;
22use Storable ();
10 23
11use Time::HiRes; 24use Time::HiRes;
12use List::Util; 25use List::Util;
13 26
14use utf8; 27use utf8;
… …
21my $json; # the test string 34my $json; # the test string
22 35
23local $/; 36local $/;
24$json = <>; 37$json = <>;
25 38
39# fix syck-brokenised stuff
40$json = JSON::XS->new->ascii(1)->encode (JSON::Syck::Load $json);
41
26#srand 0; $json = JSON::XS->new->utf8(1)->ascii(0)->encode ([join "", map +(chr rand 255), 0..2047]); 42#srand 0; $json = JSON::XS->new->utf8(1)->ascii(0)->encode ([join "", map +(chr rand 255), 0..2047]);
27 43
28#if (1) { 44#if (1) {
29# use Storable; 45# use Storable;
30# open my $fh, "<:unix", "/opt/crossfire/share/cfserver/faces" or die "$!"; 46# open my $fh, "<:unix", "/opt/crossfire/share/cfserver/faces" or die "$!";
… …
33# open my $fh2, ">:unix", "faces.json" or die "$!"; 49# open my $fh2, ">:unix", "faces.json" or die "$!";
34# print $fh2 $json; 50# print $fh2 $json;
35# warn length $json; 51# warn length $json;
36#} 52#}
37 53
38my %tst = (
39# "JSON" => ['objToJson $perl' , 'jsonToObj $json'],
40 "JSON::DWIW" => ['$dwiw->to_json ($perl)', '$dwiw->from_json ($json)'],
41 "JSON::PC" => ['$pc->convert ($perl)' , '$pc->parse ($json)'],
42 "JSON::Syck" => ['JSON::Syck::Dump $perl', 'JSON::Syck::Load $json'],
43 "JSON::XS" => ['to_json $perl' , 'from_json $json'],
44 "JSON::XS/2" => ['$xs2->encode ($perl)' , '$xs2->decode ($json)'],
45 "JSON::XS/3" => ['$xs3->encode ($perl)' , '$xs3->decode ($json)'],
46);
47
48sub bench($) { 54sub bench($) {
49 my ($code) = @_; 55 my ($code) = @_;
50 56
51 my $perl = jsonToObj $json; 57 my $perl = jsonToObj $json;
52 my $count = 20; 58 my $pst = Storable::nfreeze $perl;
53 my $times = 25;
54 59
55 my $cent = eval "sub { " . (join ";", ($code) x $count) . "}"; 60 my $count = 5;
61 my $times = 200;
62
63 my $cent = eval "sub { my \$t = Time::HiRes::time; " . (join ";", ($code) x $count) . "; Time::HiRes::time - \$t }";
56 $cent->(); 64 $cent->();
57 65
58 my @meas; 66 my $min = 1e99;
59 67
60 while () { 68 for (1..$times) {
61 push @meas, Time::HiRes::time;
62 $cent->(); 69 my $t = $cent->();
63 $meas[-1] = Time::HiRes::time - $meas[-1];
64 70
65 my $mean = (List::Util::sum @meas) / @meas; 71 $min = $t if $t < $min;
66 if (@meas >= $times) {
67 @meas = grep $_ > $mean * 0.9 && $_ < $mean * 1.1, @meas;
68 my @meas = grep $_ > $mean * 0.9999 && $_ < $mean * 1.1111, @meas;
69 if (@meas >= $times) {
70 return $count / $mean;
71 }
72 }
73 } 72 }
73
74 return $count / $min;
74} 75}
75 76
76printf "%-10s | %10s | %10s |\n", "module", "encode", "decode"; 77printf "%-10s | %10s | %10s |\n", "module", "encode", "decode";
77printf "-----------|------------|------------|\n"; 78printf "-----------|------------|------------|\n";
78for my $module (sort keys %tst) { 79for my $module (sort keys %tst) {

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