You are right, formally lz4 is significantly faster than SSD, see https://www.reddit.com/r/Fedora/comments/mzun99/new_zram_tuning_benchmarks/ https://www.reddit

You are right, formally lz4 is significantly faster than SSD, see https://www.reddit.com/r/Fedora/comments/mzun99/new_zram_tuning_benchmarks/ https://www.reddit.com/r/Fedora/comments/mzun99/new_zram_tun... . However, I did benchmark using stress-ng my laptop with Samsung 980 PRO SSD and when the stressors had to use swap, using zram or zswap was like 5%-15% slower than the real swap according to bogo ops counters that the tool reported. And the more CPU was taxed during the tests, the slower zram became while CPU utilization has not affected the real swap.