Hi Fred, not really the wrong, but also not fully the right place. As the name implies the list is more for discussions/announcements - but you already have a very specific solution in mind. So I'd recommend opening a but against the zram-config at https://bugs.launchpad.net/ubuntu/+source/zram-config
OTOH if I remember correctly device specific readaheads are usually a device specific udev rule, but I'd let that discussion better be part of the discussion in the LP bug. Also you actually might want to read-ahead if there is an efficiency bonus in bulk uncompressing it. And I'm not sure if it even uses "normal" page cache on this sort of backing device. So if you have any data to back up the need for it please add it to the bug.
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