The term data compression describes decreasing the number of bits of data that has to be stored or transmitted. This can be achieved with or without losing info, so what will be removed in the course of the compression can be either redundant data or unneeded one. When the data is uncompressed afterwards, in the first case the content and its quality will be identical, whereas in the second case the quality will be worse. You will find different compression algorithms that are more effective for various sort of information. Compressing and uncompressing data frequently takes lots of processing time, which means that the server carrying out the action must have ample resources to be able to process your info fast enough. A simple example how information can be compressed is to store just how many sequential positions should have 1 and just how many should have 0 inside the binary code instead of storing the particular 1s and 0s.
Data Compression in Cloud Web Hosting
The ZFS file system that operates on our cloud web hosting platform uses a compression algorithm named LZ4. The latter is considerably faster and better than any other algorithm you will find, especially for compressing and uncompressing non-binary data i.e. web content. LZ4 even uncompresses data faster than it is read from a hard disk drive, which improves the performance of websites hosted on ZFS-based platforms. Because the algorithm compresses data very well and it does that very fast, we are able to generate several backups of all the content kept in the cloud web hosting accounts on our servers every day. Both your content and its backups will take less space and since both ZFS and LZ4 work very fast, the backup generation will not affect the performance of the web hosting servers where your content will be stored.