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This document discusses strategies for optimizing access to large "master data" files in PHP applications. It describes converting master data files from PHP arrays to tab-separated value (TSV) files to reduce loading time. Benchmark tests show the TSV format reduces file size by over 50% and loading time from 70 milliseconds to 7 milliseconds without OPcache. Accessing rows as arrays by splitting
ZFConf 2012: Zend Framework 2, a quick start (Enrico Zimuel)
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Dodge the thundering herd with file-based Opcache in PHP7 In the last blog post about Fine-Tuning Opcache Configuration I mentioned the thundering herd problem that affects Opcache during cache restarts. When Opcache is restarted, either automatically or manually, all current users will attempt to regenerate the cache entries. Under load this can lead to a burst in CPU usage and significantly slow
Fine-Tune Your Opcache Configuration to Avoid Caching Surprises The Opcache extension has been part of the core for ten years and adds support for byte-code caching of PHP scripts. For a dynamic language such as PHP, a byte-code cache can increase the performance significantly, because it guarantees a script is compiled only once. The default settings of the Opcache extension already boost PHP per
Reminder on OPCodes caches# PHP is a scripting language, that by default will compile any file you ask it to run, obtain OPCodes from compilation, run them, and trash them away immediately. PHP has been designed like that : it "forgets" everything it's done in request R-1, when it comes to run request R. On production servers, the PHP code is very unlikely to change between several requests, thus,
By no means, NewRelic is taking the world by storm with many successful deployments. But what are the cons of using it in production? PHP monitoring agent works as a .so extension. If I understand correctly, it connects to another system aggregation service, which filters data out and pushes them into the NewRelic cloud. This simply means that it works transparently under the hood. However, is thi
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Is Scaling PHP a pain in the ass? You're not exactly the next Facebook, but you're big enough, and it costs real money when your site goes down in the middle of the night. Everything I've ever learned about scaling PHPâ I slept infront of my laptop for a year while scaling Twitpic, rolling over to restart Apache at 2am before drifting back to sleep, but when you're a startup- you do what you have
The most common question people asked about my last post: I really want to use Zend Optimizer but I have NO IDEA what settings to use. (As a quick reminder, here's the full article) Have you ever noticed how you can spend hours reading docs, but without an example or real world case study, you have NO IDEA what the settings actually do? Like, you understand what "opcache.memory_consumption" MEANS,
A common layer What do we want? Re-use at the web layer! Superglobals and side-effecting output mechanisms of PHP make this challenging and force every framework to re-invent. But Symfony's HttpKernelInterface provides a solid interface, which makes creating and sharing framework-agnostic HTTP filters a breeze!
by @dekokun on 2014/06/22 23:34 Tagged as: PHP, composer. æ¦è¦ composer installã«ã¯âoptimize-autoloaderãªãã·ã§ã³ã¤ããã»ããè¥å¹²ã¢ããªã±ã¼ã·ã§ã³ã®æ§è½ãä¸ãããã ãããã¯ãcomposer installããå¾ã«composer dumpautoload -oãããã ãªãã composerãèªåçæããautoloaderã¯ã以ä¸ã®é çªã§ã¯ã©ã¹ãã¡ã¤ã«ãæ¢ãã¦ãããã§ããã vendor/composer/autoload_classmap.php(以ä¸ãclassmapãã¡ã¤ã«ã¨è¨è¼)ãã¡ã¤ã«ã®ä¸ã«ã¯ã©ã¹åã³ãã®ãã¡ã¤ã«ã®å®ç¾©ãããã°ãã®ãã¡ã¤ã«ãinclude ä¸è¨ãªããã°ãã®ãã¡ã¤ã«ãã¾ãããããæ¤ç´¢ãã¦ãã¡ã¤ã«ã®åå¨ã¾ã§ç¢ºèªãã¦åå¨ããã°include ã¨ããããã§classmap
Lately, we spent quite some time optimizing Mouf's performance. It appeared that one of the bottlenecks was Composer's autoload mechanism. Our application was spending quite some time in the autoloader instead of doing interesting things. I was curious to see how much was spent in Composer's autoloader, so I did a little benchmark with a simple "Hello World!" application in Mouf. A bit of theory f
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