| 1 | #!/opt/bin/perl |
1 | #!/opt/bin/perl |
| 2 | |
2 | |
| 3 | # Usage: bench json-file |
3 | # Usage: bench json-file |
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4 | |
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5 | # which modules to test (JSON usually excluded because its so slow) |
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6 | my %tst = ( |
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7 | "JSON" => ['objToJson $perl' , 'jsonToObj $json'], |
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8 | "JSON::DWIW" => ['$dwiw->to_json ($perl)', '$dwiw->from_json ($json)'], |
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9 | "JSON::PC" => ['$pc->convert ($perl)' , '$pc->parse ($json)'], |
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10 | "JSON::Syck" => ['JSON::Syck::Dump $perl', 'JSON::Syck::Load $json'], |
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11 | "JSON::XS" => ['to_json $perl' , 'from_json $json'], |
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12 | "JSON::XS/2" => ['$xs2->encode ($perl)' , '$xs2->decode ($json)'], |
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13 | "JSON::XS/3" => ['$xs3->encode ($perl)' , '$xs3->decode ($json)'], |
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14 | "Storable" => ['Storable::nfreeze $perl', 'Storable::thaw $pst'], |
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15 | ); |
| 4 | |
16 | |
| 5 | use JSON; |
17 | use JSON; |
| 6 | use JSON::DWIW; |
18 | use JSON::DWIW; |
| 7 | use JSON::PC; |
19 | use JSON::PC; |
| 8 | use JSON::XS qw(to_json from_json); |
20 | use JSON::XS qw(to_json from_json); |
| … | |
… | |
| 37 | # open my $fh2, ">:unix", "faces.json" or die "$!"; |
49 | # open my $fh2, ">:unix", "faces.json" or die "$!"; |
| 38 | # print $fh2 $json; |
50 | # print $fh2 $json; |
| 39 | # warn length $json; |
51 | # warn length $json; |
| 40 | #} |
52 | #} |
| 41 | |
53 | |
| 42 | my %tst = ( |
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| 43 | # "JSON" => ['objToJson $perl' , 'jsonToObj $json'], |
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| 44 | "JSON::DWIW" => ['$dwiw->to_json ($perl)', '$dwiw->from_json ($json)'], |
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| 45 | "JSON::PC" => ['$pc->convert ($perl)' , '$pc->parse ($json)'], |
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| 46 | "JSON::Syck" => ['JSON::Syck::Dump $perl', 'JSON::Syck::Load $json'], |
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| 47 | "JSON::XS" => ['to_json $perl' , 'from_json $json'], |
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| 48 | "JSON::XS/2" => ['$xs2->encode ($perl)' , '$xs2->decode ($json)'], |
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| 49 | "JSON::XS/3" => ['$xs3->encode ($perl)' , '$xs3->decode ($json)'], |
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| 50 | "Storable" => ['Storable::nfreeze $perl', 'Storable::thaw $pst'], |
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| 51 | ); |
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| 52 | |
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| 53 | sub bench($) { |
54 | sub bench($) { |
| 54 | my ($code) = @_; |
55 | my ($code) = @_; |
| 55 | |
56 | |
| 56 | my $perl = jsonToObj $json; |
57 | my $perl = jsonToObj $json; |
| 57 | my $pst = Storable::nfreeze $perl; |
58 | my $pst = Storable::nfreeze $perl; |
| 58 | |
59 | |
| 59 | my $count = 2; |
60 | my $count = 5; |
| 60 | my $times = 25; |
61 | my $times = 200; |
| 61 | |
62 | |
| 62 | my $cent = eval "sub { " . (join ";", ($code) x $count) . "}"; |
63 | my $cent = eval "sub { my \$t = Time::HiRes::time; " . (join ";", ($code) x $count) . "; Time::HiRes::time - \$t }"; |
| 63 | $cent->(); |
64 | $cent->(); |
| 64 | |
65 | |
| 65 | my @meas; |
66 | my $min = 1e99; |
| 66 | |
67 | |
| 67 | while () { |
68 | for (1..$times) { |
| 68 | push @meas, Time::HiRes::time; |
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| 69 | $cent->(); |
69 | my $t = $cent->(); |
| 70 | $meas[-1] = Time::HiRes::time - $meas[-1]; |
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| 71 | |
70 | |
| 72 | my $mean = (List::Util::sum @meas) / @meas; |
71 | $min = $t if $t < $min; |
| 73 | if (@meas >= $times) { |
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| 74 | @meas = grep $_ > $mean * 0.9 && $_ < $mean * 1.1, @meas; |
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| 75 | my @meas = grep $_ > $mean * 0.9999 && $_ < $mean * 1.1111, @meas; |
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| 76 | if (@meas >= $times) { |
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| 77 | return $count / $mean; |
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| 78 | } |
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| 79 | } |
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| 80 | } |
72 | } |
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73 | |
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74 | return $count / $min; |
| 81 | } |
75 | } |
| 82 | |
76 | |
| 83 | printf "%-10s | %10s | %10s |\n", "module", "encode", "decode"; |
77 | printf "%-10s | %10s | %10s |\n", "module", "encode", "decode"; |
| 84 | printf "-----------|------------|------------|\n"; |
78 | printf "-----------|------------|------------|\n"; |
| 85 | for my $module (sort keys %tst) { |
79 | for my $module (sort keys %tst) { |
