Data compression is the compacting of data by reducing the number of bits which are stored or transmitted. Consequently, the compressed information takes much less disk space than the original one, so a lot more content might be stored using the same amount of space. You'll find different compression algorithms that function in different ways and with a number of them just the redundant bits are removed, which means that once the information is uncompressed, there's no loss of quality. Others delete unnecessary bits, but uncompressing the data afterwards will result in lower quality compared to the original. Compressing and uncompressing content needs a large amount of system resources, in particular CPU processing time, so any Internet hosting platform that uses compression in real time should have ample power to support that attribute. An example how info can be compressed is to substitute a binary code such as 111111 with 6x1 i.e. "remembering" how many consecutive 1s or 0s there should be instead of keeping the actual code.
Data Compression in Web Hosting
The ZFS file system which is run on our cloud web hosting platform employs a compression algorithm named LZ4. The aforementioned is substantially faster and better than any other algorithm you'll 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, which improves the performance of websites hosted on ZFS-based platforms. Due to the fact that the algorithm compresses data quite well and it does that quickly, we are able to generate several backups of all the content kept in the web hosting accounts on our servers daily. Both your content and its backups will need less space and since both ZFS and LZ4 work very quickly, the backup generation will not change the performance of the hosting servers where your content will be kept.
Data Compression in Semi-dedicated Hosting
Your semi-dedicated hosting account will be created on a cloud platform that is run on the state-of-the-art ZFS file system. The aforementioned uses a compression algorithm known as LZ4, that's significantly better than other algorithms regarding compression ratio and speed. The gain is visible particularly when data is being uncompressed and not only is LZ4 faster than other algorithms, but it is also faster in uncompressing data than a system is in reading from a hard disk drive. That's why sites running on a platform that uses LZ4 compression perform better since the algorithm is most effective when it processes compressible data i.e. web content. A further advantage of using LZ4 is that the backups of the semi-dedicated accounts which we keep require significantly less space and they're generated quicker, which enables us to keep several daily backups of all your files and databases.