Not having quite enough RAM is the exact scenario when swap on ZRAM is most useful. Assuming the data you have in RAM is compressible it lets you use a few extr

Not having quite enough RAM is the exact scenario when swap on ZRAM is most useful. Assuming the data you have in RAM is compressible it lets you use a few extra gigabytes before hitting disk swap or OOM (depending on if you have a disk swap device configured in addition to ZRAM). Zswap is somewhat similar and might also work well for you, it uses disk swap but with a compressed cache in RAM.