The term data compression identifies lowering the number of bits of information that has to be stored or transmitted. This can be achieved with or without losing data, so what will be removed during the compression shall be either redundant data or unneeded one. When the data is uncompressed subsequently, in the first case the information and its quality will be identical, whereas in the second case the quality will be worse. You will find various compression algorithms which are more efficient for various sort of information. Compressing and uncompressing data normally takes a lot of processing time, which means that the server performing the action must have plenty of resources in order to be able to process your data quick enough. A simple example how information can be compressed is to store how many consecutive positions should have 1 and how many should have 0 within the binary code instead of storing the particular 1s and 0s.
Data Compression in Web Hosting
The compression algorithm which we use on the cloud hosting platform where your new web hosting account will be created is named LZ4 and it is used by the exceptional ZFS file system that powers the platform. The algorithm is better than the ones other file systems use because its compression ratio is a lot higher and it processes data significantly quicker. The speed is most noticeable when content is being uncompressed since this happens quicker than information can be read from a hard drive. Because of this, LZ4 improves the performance of each site located on a server which uses this algorithm. We take advantage of LZ4 in an additional way - its speed and compression ratio allow us to generate several daily backup copies of the entire content of all accounts and keep them for thirty days. Not only do the backup copies take less space, but also their generation won't slow the servers down like it can often happen with various other file systems.
Data Compression in Semi-dedicated Servers
The semi-dedicated server plans that we supply are created on a powerful cloud hosting platform which runs on the ZFS file system. ZFS uses a compression algorithm called LZ4 that outperforms any other algorithm on the market in terms of speed and compression ratio when it comes to processing web content. This is valid particularly when data is uncompressed because LZ4 does that more quickly than it would be to read uncompressed data from a hard drive and as a result, sites running on a platform where LZ4 is enabled will work at a higher speed. We're able to take advantage of this feature although it requires quite a large amount of CPU processing time as our platform uses a lot of powerful servers working together and we don't create accounts on just a single machine like the majority of companies do. There is another advantage of using LZ4 - considering that it compresses data very well and does that speedily, we can also make multiple daily backup copies of all accounts without influencing the performance of the servers and keep them for a month. This way, you'll always be able to recover any content that you erase by mistake.