Varnish Caching System with Php
Varnish is an open source HTTP accelerator designed for content-heavy dynamic websites. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 – 1000x, depending on your architecture. A high-level overview of what Varnish does can be seen in the video attached to this web page.
Varnish stores data in virtual memory and leaves the task of deciding what is stored in memory and what gets paged out to disk to the operating system. This helps avoid the situation where the operating system starts caching data while they are moved to disk by the application.
Varnish Configuration Language
The principal configuration mechanism is VCL (Varnish Configuration Language), a domain-specific language (DSL) used to write hooks which are called at critical points in the handling of each request. Most policy decisions are left to VCL code, making Varnish far more configurable and adaptable than most other HTTP accelerators. When a VCL script is loaded, it is translated to C, compiled to a shared object by the system compiler, and linked directly into the accelerator.
Varnish supports load balancing using both a round-robin and a random director, both with a per-backend weighting. Basic health-checking of backends is also available.
Official Website
Download latest version
//varnish-cache.org/releases/rel5.2.1.html#rel5-2-1
Download Ebook
//info.varnish-software.com/the-varnish-book
Varnish Magento Extension
//github.com/nexcess/magento-turpentine
Comments (8)
We’re a group of volunteers and also starting a new scheme in our community. Your site provided people with helpful tips to pictures on. You’ve completed a powerful task and our whole group might be grateful to you personally.
Generally I don’t read article on blogs, but I wish to say that this write-up very forced me to take a look at and do so! Your writing taste has been amazed me. Thanks, very nice post.
I love it wɦen individuals gеt togеther anɗ share ideas. Gгeat blog, continue the good work!
Hi thеre! I ѕimply wiѕh to offer you a huge thumЬs up for your great information you Һave got here on this post.
I’ll be гeturning to yoiur website for more soon.
Very nice post. I simply stumbled upon your blog and wished to say that I’ve truly enjoyed browsing your blog posts. In any case I’ll be subscribing for your rss feed and I’m hoping you write once more soon!
Fantastic items from you, man. I have consider your stuff previous to and you’re simply too excellent. I really like what you’ve bought here, certainly like
what you are saying and the way in which you assert it. You’re making it entertaining and you continue to take care of to stay it sensible. I cant wait to read far more from you. This is really a terrific site.
I just want to say I’m beginner to blogging and honestly enjoyed your blog site. Probably I’m planning to bookmark your site . You definitely come with amazing writings. Regards for sharing with us your web page.
I just want to mention I am very new to blogging and site-building and truly savored you’re web-site. Most likely I’m planning to bookmark your blog . You surely have great writings. Bless you for revealing your website.