PUBLIC MARKS with tags linux & performance

RESULT: With compression, REISER4, absolutely SMASHED the other filesystems.

Article très intéressant sur les aspects liés à la performance de linux comme les systèmes de fichier.

Base de donnée publique des résultats des tests Phoronix. Phoronix est un framework de test développé en php qui fait appel à des applications de benchmark existantes).

Actually usually any web server can handle a normal day of work, but what happens when the server under your administration gets, stumbled, or appears in Slashdot, or digg front pages, now a days even twitter may drive a lot of traffic to a webpage.

Conseils d'optimisation de la configuration apache pour la performance.

amebench hunts down the fastest DNS servers available for your computer to use

When tuning a site's performance, a system administrator needs certain tools to measure and monitor how the site is doing under increasing load, as well as identify where bottlenecks may be. Linux system performance monitoring tools On Linux, there are several tools available to you to do this. We describe what we have found as the most helpful in this section.

Opsview is enterprise network and application monitoring software designed for scalability, flexibility and ease of use. Opsview has been in development since 2003 and is released under the GNU GPL license. Current version is 2.12. Opsview is a fully integrated monitoring tool that incorporates popular Open Source software including Nagios, Net-SNMP and RRDtool. The Catalyst web framework provides an extensible monitoring and configuration user interface. Opsview software is supported on Linux (Debian, CentOS, RHEL and Ubuntu) and Solaris 10. It will monitor all common operating systems including Windows. Opsview extends the capabilities of Nagios in the following ways: * Distributed monitoring with high availability and fail-over * Much improved SNMP support with trap processing with rules engine * API supporting automation of Opsview configuration * Data warehouse for storage of historical performance and event data * Opsview Reports customisable reporting * Powerful configuration and management UI * Extended monitoring UI * Extensible architecture based on Catalyst Web Framework and Altinity middleware software

User contributed tutorial written by Ramesh Natarajan. Following are few situations where you may be interested in performing a filesystem benchmarking. => Deploying a new application that is very read and write intensive. => Purchased a new storage system and would like to measure the performance. => Changing the RAID level and would like to measure the performance of the new RAID. => Changing the storage parameters and would like to know the performance impact of this change

Voici quelques pistes qui seront particulièrement utiles à ceux qui développent une application dans un environnement LAMP (Linux, Apache, Php et MySql) ou RoR (Ruby On Rails). Il s’agit en fait des retours d’expérience de sites comme Flickr, Digg

Iperf est un des outils indispensable pout tout administrateur réseau qui se respecte. En effet, ce logiciel de mesure de performance réseau, diponible sur de nombreuses plateformes (Linux, BSD, Mac, Windows…), se présente sous la forme d’une ligne de commande à executer sur deux machines disposées aux extrémités du réseau à tester.