Data compression is the compacting of info by decreasing the number of bits which are stored or transmitted. This way, the compressed information will require substantially less disk space than the initial one, so a lot more content can be stored using the same amount of space. There're different compression algorithms that work in different ways and with a number of them only the redundant bits are erased, so once the information is uncompressed, there is no loss of quality. Others delete excessive bits, but uncompressing the data at a later time will result in reduced quality in comparison with the original. Compressing and uncompressing content requires a significant amount of system resources, particularly CPU processing time, therefore every web hosting platform which uses compression in real time needs to have adequate power to support that attribute. An example how information 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 entire code.
Data Compression in Shared Web Hosting
The ZFS file system that operates on our cloud web hosting platform employs a compression algorithm identified as LZ4. The aforementioned is a lot faster and better than any other algorithm out there, particularly for compressing and uncompressing non-binary data i.e. web content. LZ4 even uncompresses data quicker than it is read from a hard disk drive, which improves the overall performance of sites hosted on ZFS-based platforms. As the algorithm compresses data quite well and it does that very quickly, we are able to generate several backups of all the content stored in the shared web hosting accounts on our servers on a daily basis. 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 Servers
The ZFS file system that runs on the cloud platform where your semi-dedicated server account will be created uses a powerful compression algorithm called LZ4. It is among the best algorithms out there and certainly the best one when it comes to compressing and uncompressing website content, as its ratio is very high and it can uncompress data much faster than the same data can be read from a hard disk drive if it were uncompressed. This way, using LZ4 will boost every website that runs on a platform where the algorithm is enabled. The high performance requires plenty of CPU processing time, that's provided by the large number of clusters working together as part of our platform. In addition to that, LZ4 makes it possible for us to generate several backup copies of your content every day and have them for a month as they'll take much less space than standard backups and will be created much more quickly without loading the servers.