The term data compression describes lowering the number of bits of information which needs to be saved or transmitted. You can do this with or without the loss of information, which means that what will be removed in the course of the compression shall be either redundant data or unneeded one. When the data is uncompressed later on, in the first case the data and its quality shall be identical, whereas in the second case the quality shall be worse. You can find different compression algorithms that are more efficient for various type of information. Compressing and uncompressing data generally takes a lot of processing time, which means that the server performing the action should have ample resources to be able to process the data quick enough. A simple example how information can be compressed is to store just how many sequential positions should have 1 and how many should have 0 in the binary code as an alternative to storing the particular 1s and 0s.
Data Compression in Web Hosting
The compression algorithm that we use on the cloud internet hosting platform where your new web hosting account will be created is named LZ4 and it's used by the advanced ZFS file system that powers the system. The algorithm is better than the ones other file systems employ as its compression ratio is a lot higher and it processes data considerably quicker. The speed is most noticeable when content is being uncompressed as this happens more quickly than information can be read from a hard drive. Because of this, LZ4 improves the performance of each and every Internet site stored on a server which uses this algorithm. We take full advantage of LZ4 in an additional way - its speed and compression ratio let us make a number of daily backup copies of the whole content of all accounts and keep them for a month. Not only do our backups take less space, but also their generation does not slow the servers down like it often happens with some other file systems.
Data Compression in Semi-dedicated Servers
The semi-dedicated server plans that we provide are created on a powerful cloud platform which runs on the ZFS file system. ZFS works with a compression algorithm known as LZ4 that surpasses any other algorithm you will find in terms of speed and compression ratio when it comes to processing web content. This is valid especially when data is uncompressed since LZ4 does that much faster than it would be to read uncompressed data from a hard drive and for that reason, websites running on a platform where LZ4 is present will work faster. We are able to take full advantage of the feature despite of the fact that it requires quite a considerable amount of CPU processing time because our platform uses a large number of powerful servers working together and we don't create accounts on just a single machine like a lot of companies do. There's another reward of using LZ4 - since it compresses data rather well and does that speedily, we can also generate several daily backups of all accounts without influencing the performance of the servers and keep them for a month. By doing this, you will always be able to bring back any content that you delete by accident.