The term data compression means decreasing the number of bits of data that needs to be stored or transmitted. This can be achieved with or without losing information, so what will be erased during the compression can be either redundant data or unneeded one. When the data is uncompressed afterwards, in the first case the info and the quality will be the same, whereas in the second case the quality shall be worse. There are various compression algorithms that are more effective for various type of info. Compressing and uncompressing data often takes plenty of processing time, so the server executing the action needs to have ample resources in order to be able to process the info quick enough. One 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 in the binary code rather than storing the actual 1s and 0s.
Data Compression in Semi-dedicated Hosting
The semi-dedicated hosting plans that we supply are created on a powerful cloud hosting platform that runs on the ZFS file system. ZFS uses a compression algorithm named LZ4 that surpasses any other algorithm these days in terms of speed and compression ratio when it comes to processing website content. This is valid especially when data is uncompressed since LZ4 does that more rapidly than it would be to read uncompressed data from a hard disk drive and because of this, websites running on a platform where LZ4 is enabled will work quicker. We're able to take advantage of this feature although it requires quite a large amount of CPU processing time because our platform uses numerous powerful servers working together and we don't make accounts on a single machine like most companies do. There's one more reward of using LZ4 - considering the fact that it compresses data very well and does that very fast, we can also make several daily backup copies of all accounts without affecting the performance of the servers and keep them for an entire month. By doing this, you'll always be able to recover any content that you erase by mistake.