Introducing Ratestate
Ratestate is a ratelimiter in the form of a Node.js module that can transmit states of different entities while avoiding transmitting the same state twice, and adhering to a global...
performance
A collection of 15 posts
Reverse a Multibyte String in PHP
PHP's strrev is not safe to use on utf-8 strings because it reverses a string one byte at a time. So if a character consists of multiple bytes it cannot be preserved as an entity i...
Revisiting Faster PHP Sessions
> "Simplicity is prerequisite for reliability." Edsger W. Dijkstra As our experience grows, we learn from past mistakes and discover what's truely important in relia...
Optimize Your Synology NAS for Downloading
I recently bought a NAS so my data is safe & available, with the benefit of being low power / noise / heat. I've considered Netgear, QNAP, but decided to go for a Synology as i...
Convert All Tables to InnoDB
Some time ago I was in the situation where I was looking at 200 MyISAM tables screaming to get converted to InnoDB for performance reasons. You probably know that MyISAM is better...
Redis PHP Introduction
Don't know Redis? Think Memcache, with support for for lists, and disk-based storage. You can use Redis as a database, queue, cache server or all of those combined. Let's see how y...
CakePHP and Nginx
I still got sites running Apache, but all new projects are launched with Nginx. I don't need many of the features that Apache offers, and the speed gain of Nginx is just tremendous...
Improve MySQL Insert Performance
Sometimes MySQL needs to work hard. I've been working on an import script that fires a lot of INSERTs. Normally our database server handles 1,000 inserts / sec. That wasn't enough....
Boost MySQL Performance by 1200%
Sorry folks, this article was based on flawed benchmark results, I will soon post an update!
Enhance PHP Session Management
In PHP, sessions can keep track of authenticated in users. They are an essential building block in today's websites with big communities and a lot of user activity. Without session...
Better Performance With mod_deflate
I used to use Dean Edwards Javascript Packer a lot to compress my Javascript sources. Libraries of 100kB could easily shrink to 30kB and that saves load times & bandwidth. A go...
Survive Heavy Traffic With Your Webserver
Recently two of my articles reached the Digg frontpage at the same day. My web server isn't state of the art and it had to handle gigantic amounts of traffic. But still it served p...
Speedup Your Website With Cache_Lite
Every time a request hits your server, PHP has to do a lot of processing, all of your code has to be compiled & executed for every single visit. Even though the outcome of all...
Create Turbocharged Storage Using tmpfs
Everyone knows that RAM is so much faster than a hard disk. To illustrate, while a current SATA disk has peak transfer rates of 375 MB/s, current RAM can do a mind blowing 12,500 M...
Install Squid & Apache on 1 Server
Let's say your site is becoming a big success and as a result it's becoming slower and slower. There are several things you do without buying additional hardware: