Following a previous post, I’ve enabled PageSpeed on both wiki and blog deimos.fr.
What I can say is, it’s very important to take the time to test every optimizations you want to add. I experienced for example issues on silly things like :
# Optimize browser rendering pagespeed EnableFilters lazyload_images; Some images weren’t shown if you didn’t refresh once again your page browser. I only had this problem on the blog and not the wiki.
Don’t miss the Ceph Meetup on Monday ! You will be aware of the new features in Firefly (like tiering or erasure coding) ! And this is the first long time support release !!!
To get more informations: http://www.meetup.com/Ceph-in-Paris/events/158942372/
I’ve first heard of Page Speed last year for Apache. I was really waiting a stable version for Nginx and it’s now done. A few days ago, Nicolargo made a post regarding it and that’s what motivated me to go ahead on Page Speed.
PageSpeed speeds up your site and reduces page load time. This open-source webserver module automatically applies web performance best practices to pages and associated assets (CSS, JavaScript, images) without requiring that you modify your existing content or workflow.
I discovered Dotdeb a few months ago and decided to make a quick documentation to install the repository. But before, here is the official explaination of what is the repository made for :
Dotdeb is a repository containing packages to turn your Debian boxes into powerful, stable and up-to-date LAMP servers :
Nginx PHP 5.4 and 5.3, useful PHP extensions : APC, imagick, Pinba, xcache, Xdebug, XHprof… MySQL 5.
This meetup should be very interesting as it will talk about deployment for OpenStack. The speakers comes from eNovance and RedHat ! Talks will be very interesting.
You can find more informations there: http://www.meetup.com/OpenStack-France/events/161704432/
Ceph
I liked that presentation as it has been done by one of my colleague Sebastien Han and reviewed the slides with him:
Elasticsearch 1.0
Elastic search is growing fast and this version brings a lot of admin friendly wanted features :
How you can benefit from using Redis
Redis is a real fast solution for storing data in RAM. The Redis Cluster announce has been made ! In normally 2 weeks, we should see something :
Once again the FOSDEM has given awesome talks ! This years I was more focused to SQL and NOSQL databases. I wanted to also see Puppet related conferences, but they were full like the last year.
Getting started with MySQL Performance Schema
First of all, I started with a MySQL Performance Schema presentation :
http://dimitrik.free.fr/mysqltechday_2013_10/MySQL_PFS_2013-dim.pdf
I saw that I had underestimated the power of Performance schema ! We can for example see iowaits and waiting time on tables files.
