Sponsorised links
June 2009
WhereCloud – Products
by sbrothier
& 1 other
Reportage is a radically different native Twitter client for your iPhone that provides a radio tuning environment into your Twitter social network.
Reportage views a Twitter user as a broadcaster and each user's tweets as a specific broadcast.
Similar to a real radio tuner, Reportage allows you to selectively tune into each broadcaster and visualize the conversation.
Sponsorised links
May 2009
February 2009
Blog Smarter | Zemanta Ltd.
by Xavier Lacot
& 6 others
Zemanta is a text enrichment tool. Packaged as a firefox extension, it helps adding tags, photos, links to the texts you type in your web browser. It is based on "natural language processing, machine learning and fine tuning", and would take profit out of SemWeb technologies.
December 2008
November 2008
Techworld - Microsoft 'interested' in open source browser: Ballmer
by night.kame
"Why is IE still relevant and why is it worth spending money on rendering engines when there are open source ones available that can respond to changes in Web standards faster?"
"That's cheeky, but a good question, but cheeky," Ballmer said.
Indeed it is. If I was a Microsoft share holder I would want to know why Microsoft is sinking so much money into its own Web browser rendering engine when there are others available for free.
Normalement, à cet instant on arrête de lire l'article vu la puissance de l'analyse. Et pourquoi Opera dépense tant d'argent alors que Internet Explorer est gratuit ? Et pourquoi la Fondation Mozilla dépense tant d'argent alors que Safari est gratuit ? Et pourquoi Apple dépense tant d'argent alors que le tuning est gratuit ? (ha, on m'informe que le tuning n'est pas gratuit, juste le chromage).
Et d'autre part, si "s'adapter plus vite aux standards" ça veut dire implémenter des bouts d'un machin qui ne sera pas près avant 2012 (oui, je parle de HTML5, qui est parti pour être le plus gros gloubi-boulga depuis VB5 + ActiveX), et pas finir d'implémenter les standards existant ?
October 2008
Tools for Performance Tuning and Optimization | 2bits.com, Inc. - Drupal Development, Customization and Consulting
by holyver
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.
Tuning the Apache MaxClients parameter | 2bits.com, Inc. - Drupal Development, Customization and Consulting
by holyver
Apache prefork, StartServers, MaxSpareServers and MinSpareServers
In the most common case, you will be using Apache in the prefork mode, meaning one process per connection, with a pool of processes pre-forked to standby for connections. The number of spare processes is defined by the values MaxSpareServers, MinSpareServers, while the number to start is defined by StartServers.
September 2008
Zimbra on a VPS: Tuning - Misc - Rob Thompson
by camel
Out of the box, Zimbra is tuned for a fairly beefy machine. Zimbra will easily consume 1.5GB of ram with default settings. Some of these changes mean turning off a few Zimbra features and there are quite a few ways to do this, so you will need to evaluate memory usage given your own situation. If you simply can't live without *all* the Zimbra features or intend to support a larger (> 15) number of users, my only suggestion is to get more ram ;). But if you are willing to make some compromises, please read on.
The changes below are ones that I found to be a reasonable compromise. With a few easy changes, you can bring the memory consumption way down, so that it will hum along just fine on a server with ~512MB of ram. Of course this reduces the amount of users that your server can support, but I've found that for a small installation of around 15 users, these settings will work just fine and give you the same performance as the out-of-the-box config with gobs of RAM. The server I have been testing with has 560MB of ram, and after tuning consumes all the ram and only about 80MB of swap on average. You will find that if you don't make changes similar to the ones suggested below with ~512MB of ram, your Zimbra install will slowly creep up its consumption of swap and your Zimbra install will start to crawl. Also, > 512MB seems to be about the minimum amount of ram to get a useful/zippy server
June 2008
Running Oracle on AIX
by BlueVoodoo
A systems administrator always needs to be cognizant of system performance. This article drills down into the many aspects of tuning AIX to run Oracle. We'll look at the Virtual Memory Manager (VMM), CPU, Memory, and I/O (disk and network).
May 2008
APC on facebook
by kasi77
(via)
Opcode caches save energy, expenses, improve overall user experience on web sites, and it's often one of the simplest optimizations to implement. This article will explain the basics of installing, configuring, and tuning an opcode cache for PHP, the Alternative PHP Cache (APC).
April 2008
March 2008
Pylot | Open Source Web Performance Tool
by greut
& 2 others
Pylot is a free open source tool for testing performance and scalability of web services. It runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning.
February 2008
Tuning Apache and PHP for Speed on Unix | PHP Everywhere
by camel
& 3 others
Here is my compilation of tips on how to optimise Apache on Linux for PHP and CGI programs.
Le tuning Apache pour augmenter les performances de votre application web : Ergonomie, Rails et Architecture de l'information web (2.0)
by camel
& 1 other
Les problèmes de montée en charge sont choses courantes pour un site ou une application web une fois atteint un certain succès. Ces derniers sont bien trop souvent négligés, généralement jusqu’au jour où se trouve atteinte la limite critique entre l’inconfort et l’instabilité. Le trend actuel veut qu’il soit à la fois plus simple et moins cher de rajouter des machines que de reprendre son code en profondeur pour l’optimiser. Encore faut-il que l’application permette un redimensionnement de ce genre sans rentrer dans une phase de refactoring complet. Évidemment, avant d’en arriver à une solution aussi lourde, il vaut mieux s’assurer que tout a été fait pour exploiter au mieux les ressources disponibles, et cela passe notamment par un peu d’optimisation côté serveur.
Optimizing AIX with performance tuning
by BlueVoodoo
Just when you thought you understood performance tuning on AIX Version 5.3, here comes AIX 6.1 on its heels to throw you a curveball. In this article, get up-to-date information on the recent changes to performance monitoring and tuning in AIX 6.1, including CPU, virtual memory, and I/O (disk and network).
Brent Meshier » Tuning Apache & MySQL for High Traffic Availability
by camel
& 1 other
Here is a quick configuration guide for those running Apache & MySQL that will prepare your webserver for heavy demand. I manage a few webservers that handle 60 hits/second on average serving dynamic pages with this configuration. Using the right hardware and software you can mitigate a potential Slashdot Effect and live to tell the tale.
