New CRAM method offers giant boost to compressed memory reads

A new memory compression method, called CRAM, has been developed, which can offer a significant boost to compressed memory reads. The compression ratio of CRAM is up to 4.5:1, which is higher than the current popular Linux kernel compression tool, Zstd, which has a compression ratio of around 3:1. This means that CRAM can potentially reduce the time it takes to read compressed memory by up to 40%. The new method was presented at the Linux Plumbers Conference 2023, and it is designed to be used in conjunction with the Linux kernel. The compression ratio of CRAM can be adjusted, allowing users to balance compression ratio with decompression speed.