btrfs has had support for changing the compression level for some years. I've been using zstd:2 (the default is 3), it compresses my data close to what zlib do

btrfs has had support for changing the compression level for some years. I've been using zstd:2 (the default is 3), it compresses my data close to what zlib does while being pretty light on CPU. https://docs.google.com/spreadsheets/d/1x9-3OQF4ev1fOCrYuYWt1QmxYRmPilw_nLik5H_2_qA/edit?usp=sharing https://docs.google.com/spreadsheets/d/1x9-3OQF4ev1fOCrYuYWt... (not mine) https://linuxreviews.org/Comparison_of_Compression_Algorithms https://linuxreviews.org/Comparison_of_Compression_Algorithm... Also note that btrfs compression works on 128 KiB chunks and if you work with small files a lot (frontend work, etc), it may actually increase your SSD wear. I've seen this in practice.