consider disabling read/write work queues on SSD devices
seems like we could do a significant (twofold, according to cloudflare) performance improvement on SSD drives if we disable "work queues" in dm-crypt, by specifying no-read-workqueue
and no-write-workqueue
in /etc/crypttab
. this is available with kernels starting with Linux 5.9, so maybe this needs to wait until the bullseye upgrade, however.
Edited by anarcat