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Scaling(WordPress(using(W3TotalCache
Thijs&Feryn
Evangelist
+32&(0)9&218&79&06
[email protected]
WPUG&Belgium&UG&meeJng
Wednesday&June&20th&2012
Gent,&Belgium
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Evangelist
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@ThijsFeryn
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Please(
rate(my(talk(on(
Joind.in
https://joind.in/6698
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PHP(isn’t(*that*(fast
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Lexing
Source(
to(tokens
Tokenizing
InterpreIng(
tokens
Compiling
Generate(
byte(code
ExecuIon
Running(
byte(code
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Overhead
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External(resources
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External(resources
Database
Webservice
Feed
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Typical(setup
Linux
Apache
PHP(/(mod_php
MySQL
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What(about(W3(Total(Cache?
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What(about(W3(Total(Cache?
✓Browser(cache
✓Minify
✓MySQL(cache
✓Object(cache
✓Page(cache
✓CDN
✓Varnish(+(purging
✓Cloudflare
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APC
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You(can(also(use(Memcached
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You(can(also(use(Memcached
memcached.sess_prefix = "memc.sess.key."
session.save_path="127.0.0.1:11211"
session.save_handler = memcached
Also&
for&session&
handling
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Request vcl_recv
In cache?
vcl_hash Cacheable?
vcl_hit() vcl_miss()
vcl_deliver()
vcl_fetch()
No
Yes
No
Yes
Response
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backend default {
.host = "127.0.0.1";
.port = "8080";
}
acl purge {
"localhost";
"127.0.0.1";
"some.host.name.com";
"1.2.3.4";
}
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sub vcl_recv {
if (req.request == "PURGE") {
if (!client.ip ~ purge) {
error 405 "Not allowed: " + client.ip;
}
return(lookup);
}
if (req.request != "GET" &&
req.request != "HEAD" &&
req.request != "PUT" &&
req.request != "POST" &&
req.request != "TRACE" &&
req.request != "OPTIONS" &&
req.request != "DELETE") {
return (pipe);
}
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if (req.request != "GET" && req.request != "HEAD") {
return (pass);
}
if (req.http.Accept-Encoding) {
if (req.url ~ "\.(gif|jpg|jpeg|swf|flv|mp3|mp4|
pdf|ico|png|gz|tgz|bz2)(\?.*|)$") {
remove req.http.Accept-Encoding;
} else if (req.http.Accept-Encoding ~ "gzip") {
set req.http.Accept-Encoding = "gzip";
} else if (req.http.Accept-Encoding ~ "deflate"){
set req.http.Accept-Encoding = "deflate";
} else {
remove req.http.Accept-Encoding;
}
}
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if (req.url ~ "\.(gif|jpg|jpeg|swf|css|js|flv|mp3|
mp4|pdf|ico|png)(\?.*|)$") {
unset req.http.cookie;
set req.url = regsub(req.url, "\?.*$", "");
return (lookup);
}
if (req.url ~ "\?(utm_(campaign|medium|source|term)|
adParams|client|cx|eid|fbid|feed|ref(id|src)?|v(er|
iew))=") {
set req.url = regsub(req.url, "\?.*$", "");
}
if (req.http.cookie ~ "^ *$") {
unset req.http.cookie;
}
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sub vcl_fetch {
if (req.url ~ "wp-(login|admin)" || req.url ~
"preview=true" || req.url ~ "xmlrpc.php") {
return (hit_for_pass);
}
if ( (!(req.url ~ "(wp-(login|admin)|login)"))) {
unset beresp.http.set-cookie;
set beresp.ttl = 1h;
}
if (req.url ~ "\.(gif|jpg|jpeg|swf|css|js|flv|mp3|
mp4|pdf|ico|png)(\?.*|)$") {
set beresp.ttl = 365d;
}
}
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sub vcl_deliver {
if (obj.hits > 0) {
set resp.http.X-Cache = "HIT";
} else {
set resp.http.X-Cache = "MISS";
}
}
sub vcl_hit {
if (req.request == "PURGE") {
purge;
set obj.ttl = 0s;
error 200 "OK";
}
}
sub vcl_miss {
if (req.request == "PURGE") {
purge;
error 200 "OK";
}
}
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Linux
Varnish
Apache
PHP(+(APC
Memcached
MySQL
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FPM
h\p://www.php.net/manual/en/install.fpm.configuraIon.php
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[www]
listen = 9000
user = www-data
group = www-data
pm = dynamic
pm.max_children = 10
pm.start_servers = 4
pm.max_spare_servers = 6
pm.max_requests = 500
php_admin_value[sendmail_path] = /usr/sbin/sendmail -t -i -f
[email protected]
php_flag[display_errors] = off
php_admin_value[error_log] = /var/log/fpm-php.www.log
php_admin_flag[log_errors] = on
php_admin_value[memory_limit] = 32M
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upstream fpm {
server php1.server.com:9000;
server php2.server.com:9000;
}
upstream memcached {
server memcached1.server.com:11211;
server memcached2.server.com:11211;
}
server {
root /var/www;
index index.php index.html index.htm;
server_name nginx.server.com;
location / {
try_files $uri $uri/ /index.php;
}
location @php {
fastcgi_pass fpm;
fastcgi_index index.php;
include fastcgi_params;
}
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location ~ \.php$ {
set $memcached_key $request_uri;
memcached_pass memcached;
memcached_next_upstream not_found;
default_type text/html;
error_page 404 405 502 = @php;
}
location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
expires max;
add_header Pragma public;
add_header Cache-Control "public, must-
revalidate, proxy-revalidate";
}
}
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location ~ \.php$ {
set $memcached_key $request_uri;
memcached_pass memcached;
memcached_next_upstream not_found;
default_type text/html;
error_page 404 405 502 = @php;
}
location ~* \.(?:ico|css|js|gif|jpe?g|png)$ {
expires max;
add_header Pragma public;
add_header Cache-Control "public, must-
revalidate, proxy-revalidate";
}
}
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Linux
Varnish
Nginx
PHPFPM(+(APC
Memcached
MySQL
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Content
Delivery
Network
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Linux
Varnish
Nginx
PHPFPM(+(APC
Memcached
MySQL
CDN
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Show(Ime(!
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Thanks(!
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