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View gist:10007197
/* For versions of ExtUtils::ParseXS > 3.04_02, we need to
* explicitly enforce exporting of XSUBs since we want to
* refer to them using XS(). This isn't strictly necessary,
* but it's by far the simplest way to be backwards-compatible.
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
View gist:10007073
#ifndef PJ_INLINE_H_
#define PJ_INLINE_H_
/* Setup aliases for "static inline" for portability. */
#include <perl.h>
/* Alias Perl's */
View gist:9548987
Here's the results of the following benchmark run on various non-threaded,
-O2 perls:
package O;
use overload '""' => sub {};
my $obj = bless {'x'}, 'P';
my $obj_overload = bless {'x'}, 'O';
View gist:9249260
use 5.14.2;
use Redis;
use Data::Dumper;
use Time::HiRes qw(time);
my $r = Redis->new(server => 'localhost:6379');
my $total_count = $r->dbsize;
tsee / gist:9135998
Created Feb 21, 2014
Which of these OP trees would you expect to execute more quickly?
View gist:9135998
Which of these OP trees would you expect to execute more quickly?
(Provided that other than what you see here, they're doing the same thing!)
$ perl_a -MO=Concise -e '@x = @x{1, 2};'
g <@> leave[1 ref] vKP/REFC ->(end)
1 <0> enter ->2
2 <;> nextstate(main 1 -e:1) v:{ ->3
f <2> aassign[t3] vKS/COMMON ->g
- <1> ex-list lK ->c
3 <0> pushmark s ->4
View gist:8648558
Start benchmark for small ...
Sereal Decode ...
Sereal Encode ...
Sereal OO Decode ...
Sereal OO Encode ...
MP Decode ...
MP Encode ...
JSON Decode ...
JSON Encode ...
CBOR Decode ...
View gist:8634922
# Large data structure results
# $ perl
# 2902
# 2653
# 3941
# Benchmark: timing 500000 iterations of json decode, json encode, mp decode, mp encode, sereal decode, sereal encode...
# json decode: 22 wallclock secs (22.31 usr + 0.00 sys = 22.31 CPU) @ 22411.47/s (n=500000)
# json encode: 12 wallclock secs (10.96 usr + 0.00 sys = 10.96 CPU) @ 45620.44/s (n=500000)
tsee / terrain.h
Created Apr 25, 2013
terrain.h - a naive C implementation
View terrain.h
#define NW 0
#define NE 1
#define SW 2
#define SE 3
#include <math.h>
#include <limits.h>
#include <stdlib.h>
#include <EXTERN.h>
View gist:3737947
PERL_DL_NONLAZY=1 /usr/local/booking-perl/5.8.5/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
# Failed test '(plain) correct: blessed regexp with reuse'
# at t/010_desperate.t line 47.
# got: '"=srl\1\0B,cbar(\245)\r"'
# expected: '"=srl\1\0B,cbar(\261cfoobix)\r"'
View gist:1694101
=head2 Sharing typemaps Between CPAN Distributions
Starting with ExtUtils::ParseXS version 3.12 (comes with perl 5.16
and better), it is rather easy to share typemap code between multiple
CPAN distributions. The general idea is to share it as a module that
offers a certain API and have the dependent modules declare that as a
built-time requirement and import the typemap into the XS. An example
of such a typemap-sharing module on CPAN is
C<ExtUtils::Typemaps::Basic>. Two steps to getting that module's
typemaps available in your code: