Data compression is the compacting of data by decreasing the number of bits which are stored or transmitted. Consequently, the compressed information needs less disk space than the initial one, so more content can be stored on the same amount of space. You'll find many different compression algorithms that work in different ways and with some of them only the redundant bits are erased, which means that once the data is uncompressed, there is no decrease in quality. Others erase excessive bits, but uncompressing the data following that will lead to lower quality in comparison with the original. Compressing and uncompressing content needs a large amount of system resources, particularly CPU processing time, therefore every hosting platform that uses compression in real time must have enough power to support this feature. An example how info can be compressed is to replace a binary code such as 111111 with 6x1 i.e. "remembering" the number of sequential 1s or 0s there should be instead of keeping the actual code.
Data Compression in Shared Website Hosting
The compression algorithm that we work with on the cloud internet hosting platform where your new shared website hosting account shall be created is named LZ4 and it is applied by the cutting-edge ZFS file system which powers the system. The algorithm is far better than the ones other file systems work with as its compression ratio is much higher and it processes data a lot faster. The speed is most noticeable when content is being uncompressed as this happens at a faster rate than data can be read from a hard disk. Therefore, LZ4 improves the performance of each website hosted on a server which uses this algorithm. We use LZ4 in an additional way - its speed and compression ratio let us generate a number of daily backup copies of the whole content of all accounts and keep them for thirty days. Not only do these backups take less space, but their generation doesn't slow the servers down like it can often happen with various other file systems.