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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Speeding up the Web with PHP 7</title>
<meta name="description" content="Speeding up the Web with PHP 7">
<meta name="author" content="Rasmus Lerdorf">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
<link rel="stylesheet" href="/reveal.js/css/reveal.css">
<link rel="stylesheet" href="/reveal.js/css/theme/white.css" id="theme">
<!-- For syntax highlighting - note that these are not the generic highlight.js theme files - see https://github.com/nwinkler/reveal-highlight-themes -->
<link rel="stylesheet" href="/styles/xcode.css">
<!-- Override a few styles -->
<style>
/*
Not actually sure why this block isn't being picked up from the syntax highlight css
If you change the syntax highlight theme, copy the first block here
*/
.reveal pre code {
display: block;
max-height: 600px;
overflow-x: auto;
padding: 0.5em;
line-height: 125%;
background: #fff;
color: black;
-webkit-text-size-adjust: none;
}
.reveal section img {
box-shadow: none;
border: none;
}
.reveal code.shell {
display: block;
overflow-x: auto;
padding: 0.5em;
background: #000;
color: #ddd;
line-height: 125%;
-webkit-text-size-adjust: none;
}
/* Left-align h3 and h4 if they are p elements */
h3.p {
text-align: left;
}
h4.p {
text-align: left;
}
/* and left-aligned but slightly indented bullet lists */
.reveal ul {
display: block;
margin: 0 0 1em 3em;
}
/* Example titles */
p.example {
text-align: left;
margin: 0 0 -0.5em 1em;
font-weight: bold;
}
/* Example output style */
pre.output {
display: block;
overflow-x: auto;
padding: 0.5em;
background: #ddd;
color: black;
line-height: 200%;
-webkit-text-size-adjust: none;
}
</style>
<!-- Printing and PDF exports -->
<script>
var link = document.createElement( 'link' );
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match( /print-pdf/gi ) ? '/reveal.js/css/print/pdf.css' : '/reveal.js/css/print/paper.css';
document.getElementsByTagName( 'head' )[0].appendChild( link );
</script>
<!-- Needed for charts to work. Fall back to network if no local copy -->
<script type='text/javascript' src='/jquery.min.js'></script>
<script>window.jQuery || document.write('<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">\x3C/script>')</script>
<script src="/highcharts.js"></script>
<script>window.Highcharts || document.write('<script src="http://code.highcharts.com/highcharts.js">\x3C/script>')</script>
<!--[if lt IE 9]>
<script src="/reveal.js/lib/js/html5shiv.js"></script>
<![endif]-->
</head>
<body>
<div class="reveal">
<!-- Any section element inside of this container is displayed as a slide -->
<div class="slides">
<section>
<h1>Speeding up the Web with PHP 7</h1>
<h3>Confoo</h3>
<h3>Montreal</h3>
<h3>Feb.24, 2016</h3>
<a href="http://talks.php.net/confoo16">http://talks.php.net/confoo16</a><br><br>
<p>Rasmus Lerdorf<br>
<small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
</p>
<aside class="notes">
</aside>
</section>
<section>
<h2 margin-bottom="2em">1993</h2><br>
<pre><code class="C" data-trim style="font-size:1.1em;">#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>
#define ishex(x) (((x) >= '0' && (x) <= '9') || ((x) >= 'a' && \
(x) <= 'f') || ((x) >= 'A' && (x) <= 'F'))
int htoi(char *s) {
int value;
char c;
c = s[0];
if(isupper(c)) c = tolower(c);
value=(c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10) * 16;
c = s[1];
if(isupper(c)) c = tolower(c);
value += c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10;
return(value);
}
void main(int argc, char *argv[]) {
char *params, *data, *dest, *s, *tmp;
char *name, *age;
puts("Content-type: text/html\r\n");
puts("<HTML><HEAD><TITLE>Form Example</TITLE></HEAD>");
puts("<BODY><H1>My Example Form</H1>");
puts("<FORM action=\"form.cgi\" method=\"GET\">");
puts("Name: <INPUT type=\"text\" name=\"name\">");
puts("Age: <INPUT type=\"text\" name=\"age\">");
puts("<BR><INPUT type=\"submit\">");
puts("</FORM>");
data = getenv("QUERY_STRING");
if(data && *data) {
params = data; dest = data;
while(*data) {
if(*data=='+') *dest=' ';
else if(*data == '%' && ishex(*(data+1))&&ishex(*(data+2))) {
*dest = (char) htoi(data + 1);
data+=2;
} else *dest = *data;
data++;
dest++;
}
*dest = '\0';
s = strtok(params,"&");
do {
tmp = strchr(s,'=');
if(tmp) {
*tmp = '\0';
if(!strcmp(s,"name")) name = tmp+1;
else if(!strcmp(s,"age")) age = tmp+1;
}
} while(s=strtok(NULL,"&"));
printf("Hi %s, you are %s years old\n",name,age);
}
puts("</BODY></HTML>");
}</code></pre>
</section>
<section>
<h2 margin-bottom="2em">1993</h2><br>
<br/>
<pre><code class="Perl" data-trim>use CGI qw(:standard);
print header;
print start_html('Form Example'),
h1('My Example Form'),
start_form,
"Name: ", textfield('name'),
p,
"Age: ", textfield('age'),
p,
submit,
end_form;
if(param()) {
print "Hi ",em(param('name')),
"You are ",em(param('age')),
" years old";
}
print end_html;</code></pre>
</section>
<section>
<h2 margin-bottom="2em">1994</h2><br>
<br/>
<pre><code class="PHP" data-trim><html><head><title>Form Example</title></head>
<body><h1>My Example Form</h1>
<form action="form.phtml" method="POST">
Name: <input type="text" name="name">
Age: <input type="text" name="age">
<br><input type="submit">
</form>
<?if($name):?>
Hi <?echo $name?>, you are <?echo $age?> years old
<?endif?>
</body></html></code></pre>
</section>
<section>
<section id="php7">
<img src="/presentations/slides/intro/php7trans-200.png" width="" height="">
<p class="p" style="font-size:1.1em;text-align:left;">✔ engine improvements</p>
<ul>
<li style="font-size: 1em;">100%+ performance gain on most real-world applications</li>
<li style="font-size: 1em;">Lower memory usage, sometimes drastically lower</li>
</ul>
</section>
<section id="php7pcache1">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Persistent secondary file-based cache for OPCache</p>
<img src="/presentations/slides/intro/pcache.png" width="" height="">
</section>
<section id="php7pcache3">
<pre><code class="ini" data-trim style="font-size:1.1em;">; --enable-opcache-file
; php.ini
opcache.file_cache=/var/tmp
; php-cli.ini
opcache.enable_cli=1
opcache.file_cache=/var/tmp
opcache.file_cache_only=1</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:1em;">$ time composer >/dev/null
real 0m0.040s
user 0m0.032s
sys 0m0.004s
$ time composer >/dev/null
real 0m0.019s
user 0m0.016s
sys 0m0.000s
$ time php -d opcache.enable=0 /usr/local/bin/composer >/dev/null
real 0m0.033s
user 0m0.032s
sys 0m0.000s</code></pre>
</section>
<section id="php7pcache4">
<pre><code class="shell nohighlight" data-trim style="font-size:0.78em;">/var/tmp
├── 7eeb6fe88104116c27c5650ddd83abf0
│ └── usr
│ └── local
│ └── bin
│ └── composer.bin
└── 7eeb6fe88104116c27c5650ddd83abf0phar:
└── usr
└── local
└── bin
└── composer
├── bin
│ └── composer.bin
├── src
│ ├── bootstrap.php.bin
│ └── Composer
│ ├── Command
│ │ ├── AboutCommand.php.bin
│ │ ├── ArchiveCommand.php.bin
│ │ ├── ClearCacheCommand.php.bin
│ │ ├── Command.php.bin
│ │ ├── ConfigCommand.php.bin
│ │ ├── CreateProjectCommand.php.bin
│ │ ├── DependsCommand.php.bin
│ │ ├── DiagnoseCommand.php.bin
│ │ ├── DumpAutoloadCommand.php.bin
│ │ ├── GlobalCommand.php.bin
│ │ ├── Helper
│ │ │ └── DialogHelper.php.bin
│ │ ├── HomeCommand.php.bin
│ │ ├── InitCommand.php.bin
│ │ ├── InstallCommand.php.bin
│ │ ├── LicensesCommand.php.bin
│ │ ├── RemoveCommand.php.bin
│ │ ├── RequireCommand.php.bin
│ │ ├── RunScriptCommand.php.bin
│ │ ├── SearchCommand.php.bin
│ │ ├── SelfUpdateCommand.php.bin
│ │ ├── ShowCommand.php.bin
│ │ ├── StatusCommand.php.bin
│ │ ├── UpdateCommand.php.bin
│ │ └── ValidateCommand.php.bin
│ ├── Composer.php.bin
│ ├── Console
│ │ └── Application.php.bin
│ ├── Factory.php.bin
│ ├── IO
│ │ ├── BaseIO.php.bin
│ │ ├── ConsoleIO.php.bin
│ │ └── IOInterface.php.bin
│ ├── Package
│ │ ├── BasePackage.php.bin
│ │ └── PackageInterface.php.bin
│ ├── Script
│ │ └── ScriptEvents.php.bin
│ └── Util
│ └── ErrorHandler.php.bin
└── vendor
├── autoload.php.bin
├── composer
│ ├── autoload_classmap.php.bin
│ ├── autoload_namespaces.php.bin
│ ├── autoload_psr4.php.bin
│ ├── autoload_real.php.bin
│ └── ClassLoader.php.bin
└── symfony
└── console
└── Symfony
└── Component
└── Console
├── Application.php.bin
├── Command
│ ├── Command.php.bin
│ ├── HelpCommand.php.bin
│ └── ListCommand.php.bin
├── Descriptor
│ ├── ApplicationDescription.php.bin
│ ├── DescriptorInterface.php.bin
│ ├── Descriptor.php.bin
│ ├── JsonDescriptor.php.bin
│ ├── MarkdownDescriptor.php.bin
│ ├── TextDescriptor.php.bin
│ └── XmlDescriptor.php.bin
├── Formatter
│ ├── OutputFormatterInterface.php.bin
│ ├── OutputFormatter.php.bin
│ ├── OutputFormatterStyleInterface.php.bin
│ ├── OutputFormatterStyle.php.bin
│ └── OutputFormatterStyleStack.php.bin
├── Helper
│ ├── DebugFormatterHelper.php.bin
│ ├── DescriptorHelper.php.bin
│ ├── DialogHelper.php.bin
│ ├── FormatterHelper.php.bin
│ ├── HelperInterface.php.bin
│ ├── Helper.php.bin
│ ├── HelperSet.php.bin
│ ├── InputAwareHelper.php.bin
│ ├── ProcessHelper.php.bin
│ ├── ProgressHelper.php.bin
│ ├── QuestionHelper.php.bin
│ ├── TableHelper.php.bin
│ ├── Table.php.bin
│ └── TableStyle.php.bin
├── Input
│ ├── ArgvInput.php.bin
│ ├── ArrayInput.php.bin
│ ├── InputArgument.php.bin
│ ├── InputAwareInterface.php.bin
│ ├── InputDefinition.php.bin
│ ├── InputInterface.php.bin
│ ├── InputOption.php.bin
│ └── Input.php.bin
└── Output
├── ConsoleOutputInterface.php.bin
├── ConsoleOutput.php.bin
├── NullOutput.php.bin
├── OutputInterface.php.bin
├── Output.php.bin
└── StreamOutput.php.bin
32 directories, 87 files</code></pre>
</section>
<section id="php7ast">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Abstract Syntax Tree!!</p>
<pre><code data-trim style="font-size:1.1em;">echo substr("abc", [1,2]);</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">% phan -a test.php
AST_STMT_LIST @ 1
0: AST_STMT_LIST @ 2
0: AST_ECHO @ 2
0: AST_CALL @ 2
0: AST_NAME @ 2
flags: NAME_NOT_FQ (1)
0: "substr"
1: AST_ARG_LIST @ 2
0: "abc"
1: AST_ARRAY @ 2
0: AST_ARRAY_ELEM @ 2
flags: 0
0: 1
1: null
1: AST_ARRAY_ELEM @ 2
flags: 0
0: 2
1: null</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">% phan test.php
test.php:2 TypeError arg#2(start) is int[] but substr() takes int</code></pre>
</section>
<section id="php7excep">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Exceptions on Fatals</p>
<pre><code data-trim style="font-size:1.1em;">function call_method($obj) {
$obj->method();
}
call_method(null);</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.85em;">Fatal error: Uncaught Error: Call to a member function method() on null in file:2
Stack trace:
#0 file(4): call_method(NULL)
#1 {main}
thrown in file on line 2</code></pre>
<pre><code data-trim style="font-size:1.1em;">try {
call_method(null);
} catch (Error $e) {
echo "Caught Exception: {$e->getMessage()}\n";
}</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.85em;">Caught Exception: Call to a member function method() on null</code></pre>
</section>
<section id="php7hier">
<p class="p" style="font-size:2em;text-align:center;">PHP 7 Exception Hierarchy</p>
<br/>
<ul>
<li style="font-size: 1.5em;list-style-type: none;"><font color="ab5c5c">Throwable</font></li>
<li style="font-size: 1.25em;margin-left: 2em;list-style-type: none;">➥ <font color="ab5c5c">Exception</font> implements Throwable</li>
<li style="font-size: 1.25em;margin-left: 2em;list-style-type: none;">➥ <font color="ab5c5c">Error</font> implements Throwable</li>
<li style="font-size: 1em;margin-left: 4em;list-style-type: none;">➥ <font color="ab5c5c">TypeError</font> extends Error</li>
<li style="font-size: 1em;margin-left: 4em;list-style-type: none;">➥ <font color="ab5c5c">ParseError</font> extends Error</li>
</ul>
</section>
<section id="php7ret">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Return Types</p>
<pre><code data-trim style="font-size:1.1em;">function get_config(): array {
return 42;
}
get_config();</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;">Fatal error: Uncaught TypeError: Return value of get_config() must be
of the type array, integer returned in file:2
Stack trace:
#0 file(4): get_config()
#1 {main}
thrown in file on line 2</code></pre>
</section>
<section id="php7STH">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Coercive Scalar Types</p>
<pre><code data-trim style="font-size:1.1em;">function logmsg(string $msg, int $level, float $severity) {
var_dump($msg); // string(1) "1"
var_dump($level); // int(2)
var_dump($severity); // float(3)
}
logmsg(1, "2.5 bananas", 3);</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;">Notice: A non well formed numeric value encountered in file on line 2</code></pre>
<p class="p" style="font-size:1.1em;text-align:left;">✔ Strict Scalar Types</p>
<pre><code data-trim style="font-size:1.1em;">declare(strict_types=1);
...
logmsg(1, "2.5", 3);</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;">Fatal error: Uncaught TypeError: Argument 1 passed to logmsg() must be of the
type string, integer given, called in file on line 7 and defined in file:3
Stack trace:
#0 file(7): logmsg(1, '2.5', 3)
#1 {main}
thrown in file on line 2</code></pre>
</section>
<section id="php7anon">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Anonymous Classes</p>
<pre><code data-trim style="font-size:1.2em;">return new class($controller) implements Page {
public function __construct($controller) {
/* ... */
}
/* ... */
};
class MyObject extends MyStuff {
public function getInterface() {
return new class implements MyInterface {
/* ... */
};
}
}</code></pre>
</section>
<section id="php7coalesce">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Coalesce Operator</p>
<pre><code data-trim style="font-size:1.5em;">$a = NULL;
$b = 0;
$c = 2;
echo $a ?? $b; // 0
echo $c ?? $b; // 2
echo $a ?? $b ?? $c; // 0
echo $a ?? $x ?? $c; // 2</code></pre>
</section>
<section id="Spaceship">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Spaceship Operator</p>
<pre><code data-trim style="font-size:1.5em;">|=| Tie Fighter
k=k Tie Interceptor
<==> Tie Bomber
<=> Tie Advanced X1 ✔</code></pre>
<pre><code data-trim style="font-size:1.1em;">function cmp_php5($a, $b) {
return ($a < $b) ? -1 : (($a >$b) ? 1 : 0);
}
function cmp_php7($a, $b) {
return $a <=> $b;
}</code></pre>
</section>
<section id="php7assert">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Zero-cost Assertions</p>
<pre><code data-trim style="font-size:1.1em;">function test($arg) {
assert($arg > 20 && $arg < 110, "$arg is invalid");
}
ini_set('zend.assertions',0); test(16);
ini_set('zend.assertions',1); test(17);
ini_set('assert.exception',1); test(18);</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;">Warning: assert(): 17 is invalid failed in file on line 2
Fatal error: Uncaught AssertionError: 18 is invalid in file:2
Stack trace:
#0 file(2): assert(false, '18 is invalid')
#1 file(6): test(18)
#2 {main}
thrown in file on line 2</code></pre>
<pre><code class="ini" data-trim style="font-size:1.1em;">; Completely skip compiling assert() calls
; (can only be set in php.ini)
zend.assertions = -1</code></pre>
</section>
<section id="php7closecall">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Added Closure::call()</p>
<pre><code data-trim style="font-size:1.1em;">$f = function () {
return $this->n;
};
class MyClass {
private $n = 42;
}
$myC = new MyClass;
$c = $f->bindTo($myC, "MyClass");
$c();</code></pre>
<pre><code data-trim style="font-size:1.1em;">$f = function () {
return $this->n;
};
class MyClass {
private $n = 42;
}
$myC = new MyClass;
$f->call($myC);</code></pre>
</section>
<section id="php7cleanups">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Removal of many deprecated features<BR/>
(Your PHP4 code will break!)</p>
<pre><code data-trim>- ext/ereg (use ext/pcre instead)
- preg_replace() eval modifier (use preg_replace_callback() instead)
- ext/mysql (use ext/mysqli or ext/pdo_mysql instead)
- Assignment of new by reference
- Scoped calls of non-static methods from incompatible $this context
- dl() in php-fpm
- set_magic_quotes_runtime() and magic_quotes_runtime()
- set_socket_blocking() (use stream_set_blocking() instead)
- mcrypt_generic_end() (use mcrypt_generic_deinit() instead)
- mcrypt_ecb, mcrypt_cbc, mcrypt_cfb and mcrypt_ofb
(use mcrypt_encrypt() and mcrypt_decrypt() instead)
- datefmt_set_timezone_id() and IntlDateFormatter::setTimeZoneID()
(use datefmt_set_timezone() or IntlDateFormatter::setTimeZone() instead)
- xsl.security_prefs (use XsltProcessor::setSecurityPrefs() instead)
- iconv.input_encoding, iconv.output_encoding, iconv.internal_encoding,
mbstring.http_input, mbstring.http_output and mbstring.internal_encoding
(use php.input_encoding, php.internal_encoding and php.output_encoding instead)
- $is_dst parameter of the mktime() and gmmktime() functions
- # style comments in ini files (use ; style comments instead)
- String category names in setlocale() (use LC_* constants instead)
- Unsafe curl file uploads (use CurlFile instead)
- PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT driver option
(use PDO::ATTR_EMULATE_PREPARES instead)
- CN_match and SNI_server_name stream context option (use peer_name instead)</code></pre>
</section>
<section id="php7reserved">
<p class="p" style="font-size:1.1em;text-align:left;">✔ New reserved words:</p>
<ul>
<li style="font-size: 1em;list-style-type: none;">bool</li>
<li style="font-size: 1em;list-style-type: none;">int</li>
<li style="font-size: 1em;list-style-type: none;">float</li>
<li style="font-size: 1em;list-style-type: none;">string</li>
<li style="font-size: 1em;list-style-type: none;">null</li>
<li style="font-size: 1em;list-style-type: none;">false</li>
<li style="font-size: 1em;list-style-type: none;">true</li>
<li style="font-size: 1em;list-style-type: none;">resource</li>
<li style="font-size: 1em;list-style-type: none;">object</li>
<li style="font-size: 1em;list-style-type: none;">mixed</li>
<li style="font-size: 1em;list-style-type: none;">numeric</li>
</ul>
</section>
<section id="php7num">
<p class="p" style="font-size:1.1em;text-align:left;">✔ 64-bit integer support on Windows</p>
<p class="p" style="font-size:1.1em;text-align:left;">✔ Cleanup edge-case integer overflow/underflow</p>
<p class="p" style="font-size:1.1em;text-align:left;">✔ Support for strings with length >= 2^31 bytes in 64 bit builds.</p>
<p class="p" style="font-size:1.1em;text-align:left;">✔ Parse error on invalid numeric literals</p>
<pre><code data-trim>$mask = 0855; // Parse error: Invalid numeric literal</code></pre>
</section>
<section id="php7UVS">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Uniform variable syntax</p>
<pre><code data-trim>// left-to-right
$this->$belongs_to['column']
// vs.
$this->{$belongs_to['column']}
// support missing combinations of operations
$foo()['bar']()
[$obj1, $obj2][0]->prop
getStr(){0}
// support nested ::
$foo['bar']::$baz
$foo::$bar::$baz
$foo->bar()::baz()
// support nested ()
foo()()
$foo->bar()()
Foo::bar()()
$foo()()
// support operations on arbitrary (...) expressions
(...)['foo']
(...)->foo
(...)->foo()
(...)::$foo
(...)::foo()
(...)()
// two more practical examples for the last point
(function() { ... })()
($obj->closure)()
// support all operations on dereferencable scalars
// (not very useful)
"string"->toLower()
[$obj, 'method']()
'Foo'::$bar</code></pre>
</section>
<section id="php7unicode">
<p class="p" style="font-size:1.1em;text-align:left;">✔ Unicode Codepoint Escape Syntax</p>
<pre><code data-trim style="font-size:1.2em;">echo "\u{202E}Right-to-left text";
echo "\u{1F602}";</code></pre>
<pre class="output" style="font-size:1.2em;">Right-to-left text😂 </pre> <p class="p" style="font-size:1.1em;text-align:left;">✔ ICU IntlChar class added to intl extension</p>
</section>
<section id="php7csprng">
<p class="p" style="font-size:1.1em;text-align:left;">✔ CSPRNG</p>
<pre><code data-trim style="font-size:1.2em;">$int = random_int(-500, 500);
$bytes = random_bytes(10);
var_dump( $int );
var_dump( bin2hex($bytes) );</code></pre>
<pre class="output" style="font-size:1.2em;">int(-385)
string(20) "1e4c40b8881e93d4c27a"
</pre> </section> </section>
<section>
<section id="perf2014">
<p class="p" style="font-size:0.8em;text-align:left;">Time and number of machine instructions for 100 requests against Wordpress-3.6.0 front page</p>
<div id="perf2014_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/perf2014.js"></script>
<p class="p" style="font-size:0.5em;">(click on legend items to show/hide data sets)</p>
</section> </section>
<section>
<section id="php7perfdetail">
<ul>
<li style="font-size: 1em;list-style-type: none;">zval size reduced from 24 to 16 bytes</li>
<li style="font-size: 1em;list-style-type: none;">Hashtable size reduced from 72 to 56 bytes</li>
<li style="font-size: 1em;list-style-type: none;">Hashtable bucket size reduced from 72 to 32 bytes</li>
<li style="font-size: 1em;list-style-type: none;">Immutable array optimization</li>
</ul>
<pre><code data-trim style="font-size:1.1em;">$a = [];
for($i=0; $i < 100000;$i++) {
$a[] = ['abc','def','ghi','jkl','mno','pqr'];
}
echo memory_get_usage(true);
// PHP 5.x 109M
// PHP 7.0 42M no opcache
// PHP 7.0 6M with opcache enabled</code></pre>
</section>
<section id="php7perfdetail2">
<ul>
<li style="font-size: 1em;list-style-type: none;">Much more cpu cache friendly</li>
<li style="font-size: 1em;list-style-type: none;">New memory allocator similar to jemalloc</li>
<li style="font-size: 1em;list-style-type: none;">Faster hashtable iteration API</li>
<li style="font-size: 1em;list-style-type: none;">Array duplication optimization</li>
<li style="font-size: 1em;list-style-type: none;">PCRE JIT enabled by default</li>
<li style="font-size: 1em;list-style-type: none;">Fast ZPP (ZendParseParameters) implementation</li>
<li style="font-size: 1em;list-style-type: none;">Faster stack-allocated zvals (instead of heap)</li>
<li style="font-size: 1em;list-style-type: none;">Optimized VM calling</li>
<li style="font-size: 1em;list-style-type: none;">Global register variables with gcc 4.8+</li>
<li style="font-size: 1em;list-style-type: none;">plus hundreds of micro-optimizations</li>
</ul>
</section>
<section id="php7perfdetail3">
<p class="p" style="font-size:1.1em;">HugePage support in Opcache</p>
<pre><code class="shell nohighlight" data-trim style="font-size:1.1em;">./configure --enable-huge-code-pages</code></pre>
<pre><code class="ini" data-trim style="font-size:1.1em;">opcache.memory_consumption=256
opcache.huge_code_pages=1</code></pre>
<pre><code class="shell nohighlight" data-trim style="font-size:1.1em;">% sysctl -w vm.nr_hugepages=256
% service php-fpm start
% cat /proc/meminfo | grep Huge
HugePages_Total: 256
HugePages_Free: 231
HugePages_Rsvd: 119
HugePages_Surp: 0
Hugepagesize: 2048 kB</code></pre>
</section>
<section id="php7detail4">
<h1 style="text-align:center;">JIT?</h1>
</section> </section>
<section>
<h1 style="text-align:center;">Lies, damn lies and benchmarks</h1>
</section>
<section>
<section id="boxspecs">
<h2 margin-bottom="2em">Test Box Specs</h2><br>
<ul>
<li style="font-size: 0.8em;list-style-type: none;">Gigabyte Z87X-UD3H i7-4771 4 cores @ 3.50GHz w/ 16G of Ram @ 1600MHz</li>
<li style="font-size: 0.8em;list-style-type: none;">Hyperthreading enabled for a total of 8 virtual cores</li>
<li style="font-size: 0.8em;list-style-type: none;">Toshiba THNSNHH256GBST SSD</li>
<li style="font-size: 0.8em;list-style-type: none;">Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u5 (2015-10-09) x86_64 GNU/Linux</li>
<li style="font-size: 0.8em;list-style-type: none;">MySQL 5.6.27</li>
<li style="font-size: 0.8em;list-style-type: none;">nginx-1.6.2 + php-fpm for all tests unless indicated otherwise</li>
<li style="font-size: 0.8em;list-style-type: none;">Quiet local 100Mbps network</li>
<li style="font-size: 0.8em;list-style-type: none;">siege benchmark tool run from a separate machine</li>
</ul>
</section>
<section id="phpconf1">
<p class="p" style="text-align:left;">All versions of PHP compiled locally using gcc-4.9.2 -O2</p>
<p class="example">configure flags</p>
<pre><code class="bash" data-trim>./configure --disable-debug --with-apxs2=/usr/bin/apxs2 \
--enable-zend-signals --with-gd \
--without-pear --with-jpeg-dir=/usr \
--with-png-dir=/usr --with-vpx-dir=/usr \
--with-t1lib=/usr --with-freetype-dir=/usr \
--enable-exif --enable-gd-native-ttf \
--with-zlib --with-mysql=/usr \
--with-gmp --with-zlib-dir=/usr \
--with-gettext --with-kerberos \
--with-imap-ssl --with-mcrypt=/usr/local \
--with-iconv --enable-sockets \
--with-openssl --with-pspell \
--with-pdo-sqlite --with-pdo-mysql=mysqlnd \
--enable-soap --enable-xmlreader \
--enable-phar=shared --with-xsl \
--enable-ftp --enable-cgi \
--with-curl=/usr --with-tidy \
--with-xmlrpc --enable-mbstring \
--enable-sysvsem --enable-sysvshm \
--enable-shmop --with-readline \
--enable-pcntl --enable-fpm \
--enable-intl --enable-zip \
--with-imap --with-mysqli=mysqlnd \
--enable-calendar --prefix=/usr/local \
--enable-huge-code-pages \
--with-mysql-sock=/var/run/mysqld/mysqld.sock \
--with-config-file-scan-dir=/etc/php7/conf.d \
--with-config-file-path=/etc/php7</code></pre>
</section>
<section id="phpconf2">
<p class="example">php.ini</p>
<pre><code class="ini" data-trim>[PHP]
zend.multibyte=On
date.timezone="America/Los_Angeles"
display_startup_errors=On
zend.enable_gc=Off
include_path="/usr/local/lib/php"
default_charset="UTF-8"
error_reporting=-1
variables_order=GPCS
sendmail_path=""
max_execution_time=60
memory_limit=512M
post_max_size=1024M
cgi.force_redirect=0
cgi.fix_pathinfo=1
magic_quotes=0
magic_quotes_gpc=0
user_ini.filename=
realpath_cache_size=2M
cgi.check_shebang_line=0
max_input_vars=1000
max_file_uploads=50
zend_extension=opcache.so
opcache.enable=1
opcache.memory_consumption=256
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=10000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
opcache.huge_code_pages=1</code></pre>
</section>
<section id="phpconf3">
<p class="example">php-fpm.d/www.conf</p>
<pre><code class="ini" data-trim>[www]
user = www-data
group = www-data
listen = /var/run/php-fpm.sock
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
pm = static
pm.max_children = 10
pm.status_path = /status
ping.path = /ping
ping.response = pong</code></pre>
</section>
<section id="nginxconf1">
<p class="example">nginx.conf</p>
<pre><code class="nginx" data-trim>user www-data;
worker_processes 4;
pid /var/run/nginx.pid;
events {
worker_connections 768;
}
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
gzip on;
gzip_disable "msie6";
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}</code></pre>
</section>
<section id="nginxconf2">
<p class="example">php.conf</p>
<pre><code class="nginx" data-trim>location ~ \.php {
include fastcgi_params;
fastcgi_keep_conn on;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_intercept_errors on;
fastcgi_pass unix:/var/run/php-fpm.sock;
}</code></pre>
<p class="example">hhvm.conf</p>
<pre><code data-trim>location ~ \.php$ {
include fastcgi_params;
fastcgi_keep_conn on;
fastcgi_pass unix:/var/run/hhvm/server.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}</code></pre>
</section>
<section id="nginxconf3">
<p class="example">sites-enabled/wordpress</p>
<pre><code class="nginx" data-trim>server {
listen 80;
server_name wordpress;
root /var/www/wordpress;
access_log /var/log/nginx/wordpress-access.log;
error_log /var/log/nginx/wordpress-error.log;
location / {
index index.html index.htm index.php;
autoindex on;
}
location ~ /\. { return 403; }
include backend.conf;
}</code></pre>
</section>
<section id="hhvmconf1">
<p class="p" style="font-size:1em;">HipHop VM 3.10.1 (rel) from http://dl.hhvm.com/ubuntu</p>
<p class="example">server.ini</p>
<pre><code class="ini" data-trim>pid = /var/run/hhvm/pid
hhvm.server.file_socket = /var/run/hhvm/server.sock
hhvm.server.type = fastcgi
hhvm.server.default_document = index.php
hhvm.log.use_log_file = true
hhvm.log.file = /var/log/hhvm/error.log
hhvm.repo.central.path = /var/run/hhvm/hhvm.hhbc</code></pre>
<p class="example">php.ini</p>
<pre><code class="ini" data-trim>session.save_handler = files
session.save_path = /var/lib/php5
session.gc_maxlifetime = 1440
hhvm.log.level = Warning
hhvm.log.always_log_unhandled_exceptions = true
hhvm.log.runtime_error_reporting_level = 8191
hhvm.mysql.typed_results = false</code></pre>
</section> </section>
<section>
<section id="drupalbench">
<div id="drupalbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/drupalbench.js"></script>
</section> </section>
<section>
<section id="wpbench">
<div id="wpbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/wpbench.js"></script>
</section>
<section id="fdo">
<p class="p" style="font-size:1.1em;text-align:center;">GCC Feedback-Directed Optimization (FDO)</p>
<pre><code class="shell nohighlight" data-trim style="font-size:1em;">$ make clean
$ make -j8 prof-gen
...
$ sapi/cgi/php-cgi -T 1000 /var/www/wordpress/index.php > /dev/null
$ make prof-clean
$ make -j8 prof-use</code></pre>
</section>
<section id="wpbench_fdo">
<div id="wpbench_fdo_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/wpbench_fdo.js"></script>
</section> </section>
<section>
<section id="bbbench">
<div id="bbbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/bbbench.js"></script>
</section> </section>
<section>
<section id="mwbench">
<div id="mwbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/mwbench.js"></script>
</section> </section>
<section>
<section id="opencartbench">
<div id="opencartbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/opencartbench.js"></script>
</section> </section>
<section>
<section id="wardrobebench">
<div id="wardrobebench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/wardrobebench.js"></script>
</section> </section>
<section>
<section id="geeklogbench">
<div id="geeklogbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/geeklogbench.js"></script>
</section> </section>
<section>
<section id="magentobench">
<div id="magentobench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/magentobench.js"></script>
</section> </section>
<section>
<section id="traqbench">
<div id="traqbench_container" class="stretch" style="margin: 0 auto"></div>
<script src="presentations/slides/intro/nov3/traqbench.js"></script>
</section>
<section id="traqfix">
<p class="p" style="font-size:1.1em;text-align:left;">Had to fix one line of code in the Avalon database library:</p>
<pre><code data-trim style="font-size:1em;">diff --git a/database/model.php b/database/model.php
index 6c5f7da..c93e726 100644
--- a/database/model.php
+++ b/database/model.php
@@ -397,7 +397,7 @@ public function __get($var) {
$belongs_to['column'] = $var . '_id';
}
$model = $belongs_to['model'];
- return $this->$var = $model::find($belongs_to['foreign_key'], $this->$belongs_to['column']);
+ return $this->$var = $model::find($belongs_to['foreign_key'], $this->{$belongs_to['column']});
} else {
$val = $this->$var;</code></pre>
</section> </section>
<section>