The term data compression means decreasing the number of bits of information which has to be stored or transmitted. This can be achieved with or without the loss of info, so what will be erased in the course of the compression will be either redundant data or unnecessary one. When the data is uncompressed later on, in the first case the data and the quality shall be identical, whereas in the second case the quality will be worse. You'll find various compression algorithms which are better for various sort of information. Compressing and uncompressing data usually takes a lot of processing time, which means that the server performing the action must have enough 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 just how many should have 0 within the binary code as an alternative to storing the particular 1s and 0s.
Data Compression in Cloud Website Hosting
The compression algorithm employed by the ZFS file system which runs on our cloud web hosting platform is named LZ4. It can upgrade the performance of any website hosted in a cloud website hosting
account with us since not only does it compress data much better than algorithms used by other file systems, but it also uncompresses data at speeds that are higher than the hard drive reading speeds. This can be done by using a lot of CPU processing time, that is not a problem for our platform owing to the fact that it uses clusters of powerful servers working together. An additional advantage of LZ4 is that it enables us to generate backup copies a lot faster and on reduced disk space, so we can have a couple of daily backups of your files and databases and their generation won't affect the performance of the servers. In this way, we could always recover any content that you could have erased by accident.