NAME

SPVM::Document::Benchmark - SPVM Performance Benchmark

DESCRIPTION

SPVM Performance Benchmark.

BENCHMARK

for loop addition

for loop addition benchmark.

Benchmark Result

Benchmark raw output

  Benchmark: timing 10000 iterations of perl5_28_sum, spvm_sum, spvm_sum, spvm_sum_precompile...
  perl5_28_sum: 49 wallclock secs (48.96 usr +  0.02 sys = 48.98 CPU) @ 204.16/s (n=10000)
    spvm_sum: 27 wallclock secs (26.75 usr +  0.00 sys = 26.75 CPU) @ 373.83/s (n=10000)
  spvm_sum:  0 wallclock secs ( 0.41 usr +  0.00 sys =  0.41 CPU) @ 24390.24/s (n=10000)
  spvm_sum_precompile:  1 wallclock secs ( 0.42 usr +  0.00 sys =  0.42 CPU) @ 23809.52/s (n=10000)
                         Rate perl5_28_sum spvm_sum spvm_sum_precompile spvm_sum
  perl5_28_sum          204/s           --     -45%                -99%            -99%
  spvm_sum              374/s          83%       --                -98%            -98%
  spvm_sum_precompile 23810/s       11562%    6269%                  --             -2%
  spvm_sum     24390/s       11846%    6424%                  2%              --

Benchmark program

  B<benchmark-synopsys.pl>

  use strict;
  use warnings;
  use FindBin;
  use lib "$FindBin::Bin/lib";
  use Benchmark qw/timethese cmpthese/;

  use SPVM 'MyMath';

  # Initialize SPVM

  use strict;
  use warnings;
  use FindBin;
  use lib "$FindBin::Bin/lib";
  use Benchmark qw/timethese cmpthese/;

  use SPVM 'MyMath';
  use SPVM 'MyMathPrecompile';
  use SPVM 'MyMathNative';

  my $bench_count = 10000;
  my $loop_count = 100000;
  my $result = timethese($bench_count, {
    perl5_28_sum => sub {
      perl_sum($loop_count);
    },
    spvm_sum => sub {
      MyMath->spvm_sum($loop_count);
    },
    spvm_sum_precompile => sub {
      MyMathPrecompile->spvm_sum($loop_count);
    },
    spvm_sum => sub {
      MyMathNative->spvm_sum($loop_count);
    },
  });

  cmpthese $result;

  sub perl_sum {
    my ($loop_count) = @_;
    
    my $total = 0;
    for (my $i = 0; $i < $loop_count; $i++) {
      $total += $i;
    }
    
    return $total;
  }

MyMath.spvm

  package MyMath {
    sub spvm_sum : int ($loop_count : int) {
      
      my $total = 0;
      for (my $i = 0; $i < $loop_count; $i++) {
        $total += $i;
      }
      
      return $total;
    }
  }

MyMathPrecompile.spvm

  package MyMathPrecompile : precompile {
    sub spvm_sum : int ($loop_count : int) {
      
      my $total = 0;
      for (my $i = 0; $i < $loop_count; $i++) {
        $total += $i;
      }
      
      return $total;
    }
  }

MyMathNative.spvm

  package MyMathNative {
    native sub spvm_sum : int ($loop_count : int);
  }

MyMath.config

  use strict;
  use warnings;

  use SPVM::Builder::Config;

  my $bconf = SPVM::Builder::Config->new_c99;

  $bconf;

MyMathNative.c

  #include "spvm_native.h"

  int32_t SPNATIVE__MyMathNative__spvm_sum(SPVM_ENV* env, SPVM_VALUE* stack) {
    
    int32_t loop_count = stack[0].ival;

    int32_t total = 0;
    for (int32_t i = 0; i < loop_count; i++) {
      total += i;
    }
    
    stack[0].ival = total;
    
    return 0;
  }