Data compression is the compacting of data by lowering the number of bits which are stored or transmitted. In this way, the compressed information requires considerably less disk space than the original one, so much more content can be stored using identical amount of space. There're different compression algorithms which work in different ways and with a lot of them just the redundant bits are removed, which means that once the data is uncompressed, there's no decrease in quality. Others erase unneeded bits, but uncompressing the data later will lead to lower quality compared to the original. Compressing and uncompressing content needs a large amount of system resources, in particular CPU processing time, therefore every hosting platform that uses compression in real time must have adequate power to support this attribute. An example how info can be compressed is to substitute a binary code such as 111111 with 6x1 i.e. "remembering" the number of consecutive 1s or 0s there should be instead of saving the whole code.
Data Compression in Shared Web Hosting
The compression algorithm employed by the ZFS file system which runs on our cloud hosting platform is named LZ4. It can supercharge the performance of any website hosted in a shared web hosting account with us as not only does it compress info more effectively than algorithms used by other file systems, but also uncompresses data at speeds which 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 since it uses clusters of powerful servers working together. An additional advantage of LZ4 is that it allows us to make backups a lot faster and on less disk space, so we will have multiple daily backups of your files and databases and their generation won't change the performance of the servers. This way, we could always restore all the content that you may have erased by mistake.
Data Compression in Semi-dedicated Hosting
The semi-dedicated hosting plans which we offer are created on a powerful cloud hosting platform that runs on the ZFS file system. ZFS employs a compression algorithm named LZ4 that exceeds any other algorithm these days in terms of speed and data compression ratio when it comes to processing website content. This is valid especially when data is uncompressed as LZ4 does that more quickly than it would be to read uncompressed data from a hard drive and because of this, Internet sites running on a platform where LZ4 is present will work quicker. We can benefit from this feature regardless of the fact that it requires quite a large amount of CPU processing time because our platform uses a large number of powerful servers working together and we do not make accounts on a single machine like the vast majority of companies do. There's another advantage of using LZ4 - since it compresses data rather well and does that very fast, we can also make several daily backups of all accounts without influencing the performance of the servers and keep them for a whole month. This way, you'll always be able to restore any content that you erase by accident.