The term data compression refers to lowering the number of bits of data that has to be saved or transmitted. This can be achieved with or without losing data, so what will be removed in the course of the compression can be either redundant data or unnecessary one. When the data is uncompressed afterwards, in the first case the content and the quality will be the same, whereas in the second case the quality will be worse. You can find different compression algorithms that are better for various sort of information. Compressing and uncompressing data frequently takes a lot of processing time, which means that the server executing the action must have plenty of resources to be able to process the data fast enough. A simple example how information can be compressed is to store just how many consecutive positions should have 1 and how many should have 0 inside the binary code instead of storing the actual 1s and 0s.
Data Compression in Shared Website Hosting
The cloud hosting platform where your shared website hosting account is generated works by using the impressive ZFS file system. The LZ4 compression method which the latter employs is better in numerous aspects, and not only does it compress data better than any compression method that a number of other file systems use, but it is also a lot quicker. The benefits are significant especially on compressible content which includes website files. While it may sound unreasonable, uncompressing data with LZ4 is faster than reading uncompressed data from a hard disk, so the performance of each and every website hosted on our servers will be improved. The better and quicker compression rates also allow us to generate a number of daily backups of the entire content in each and every web hosting account, so should you delete something by accident, the last backup which we have won't be more than a few hours old. This can be done as the backups take much less space and their generation is fast enough, to not affect the performance of our servers.
Data Compression in Semi-dedicated Servers
Your semi-dedicated server account shall be created on a cloud platform which is run on the innovative ZFS file system. The aforementioned uses a compression algorithm called LZ4, that is significantly better than all other algorithms regarding compression ratio and speed. The gain is noticeable particularly when data is being uncompressed and not only is LZ4 much quicker than other algorithms, but it is also quicker in uncompressing data than a system is in reading from a HDD. That's why sites running on a platform which uses LZ4 compression perform better since the algorithm is most efficient when it processes compressible data i.e. web content. Another advantage of using LZ4 is that the backups of the semi-dedicated accounts that we keep need much less space and are generated faster, which allows us to keep a number of daily backups of all your files and databases.