--- JSON-XS/eg/bench	2007/03/24 22:55:16	1.6
+++ JSON-XS/eg/bench	2008/03/19 04:08:22	1.18
@@ -2,11 +2,26 @@
 
 # Usage: bench json-file
 
-use JSON;
+# which modules to test (JSON usually excluded because its so slow)
+my %tst = (
+#   "JSON"         => ['JSON::objToJson $perl'    , 'JSON::jsonToObj $json'],
+#   "JSON::PP"     => ['$pp->encode ($perl)'      , '$pp->decode ($json)'],
+   "JSON::DWIW"   => ['$dwiw->to_json ($perl)'   , '$dwiw->from_json ($json)'],
+#   "JSON::PC"     => ['$pc->convert ($perl)'     , '$pc->parse ($json)'],
+   "JSON::Syck"   => ['JSON::Syck::Dump $perl'   , 'JSON::Syck::Load $json'],
+   "JSON::XS"     => ['encode_json $perl'        , 'decode_json $json'],
+   "JSON::XS/2"   => ['$xs2->encode ($perl)'     , '$xs2->decode ($json)'],
+   "JSON::XS/3"   => ['$xs3->encode ($perl)'     , '$xs3->decode ($json)'],
+   "Storable"     => ['Storable::nfreeze $perl'  , 'Storable::thaw $pst'],
+);
+
+use JSON ();
 use JSON::DWIW;
 use JSON::PC;
-use JSON::XS;
+use JSON::PP ();
+use JSON::XS qw(encode_json decode_json);
 use JSON::Syck;
+use Storable ();
 
 use Time::HiRes;
 use List::Util;
@@ -15,6 +30,7 @@
 
 my $dwiw = new JSON::DWIW;
 my $pc   = new JSON::PC;
+my $pp   = JSON::PP->new->max_depth (512);
 my $xs2  = JSON::XS->new->utf8->pretty->canonical;
 my $xs3  = JSON::XS->new->utf8->shrink;
 
@@ -23,6 +39,9 @@
 local $/;
 $json = <>;
 
+# fix syck-brokenised stuff
+#$json = JSON::XS->new->ascii(1)->encode (JSON::Syck::Load $json);
+
 #srand 0; $json = JSON::XS->new->utf8(1)->ascii(0)->encode ([join "", map +(chr rand 255), 0..2047]);
 
 #if (1) {
@@ -35,42 +54,27 @@
 #   warn length $json;
 #}
 
-my %tst = (
-   "JSON"         => ['objToJson $perl'       , 'jsonToObj $json'],
-   "JSON::DWIW"   => ['$dwiw->to_json ($perl)', '$dwiw->from_json ($json)'],
-   "JSON::PC"     => ['$pc->convert ($perl)'  , '$pc->parse ($json)'],
-   "JSON::Syck"   => ['JSON::Syck::Dump $perl', 'JSON::Syck::Load $json'],
-   "JSON::XS"     => ['to_json $perl'         , 'from_json $json'],
-   "JSON::XS/2"   => ['$xs2->encode ($perl)'  , '$xs2->decode ($json)'],
-   "JSON::XS/3"   => ['$xs3->encode ($perl)'  , '$xs3->decode ($json)'],
-);
-
 sub bench($) {
    my ($code) = @_;
 
-   my $perl = jsonToObj $json;
-   my $count = 20;
-   my $times = 25;
+   my $perl = JSON::XS::decode_json $json;
+   my $pst  = Storable::nfreeze $perl;
+
+   my $count = 5;
+   my $times = 200;
 
-   my $cent = eval "sub { " . (join ";", ($code) x $count) . "}";
+   my $cent = eval "sub { my \$t = Time::HiRes::time; " . (join ";", ($code) x $count) . "; Time::HiRes::time - \$t }";
    $cent->();
 
-   my @meas;
+   my $min = 1e99;
 
-   while () {
-      push @meas, Time::HiRes::time;
-      $cent->();
-      $meas[-1] = Time::HiRes::time - $meas[-1];
-
-      my $mean = (List::Util::sum @meas) / @meas;
-      if (@meas >= $times) {
-         @meas = grep $_ > $mean * 0.9 && $_ < $mean * 1.1, @meas;
-         my @meas = grep $_ > $mean * 0.9999 && $_ < $mean * 1.1111, @meas;
-         if (@meas >= $times) {
-            return $count / $mean;
-         }
-      }
+   for (1..$times) {
+      my $t = $cent->();
+
+      $min = $t if $t < $min;
    }
+
+   return $count / $min;
 }
 
 printf "%-10s | %10s | %10s |\n", "module", "encode", "decode";