hi, list. there are my proposal. i would like to tell about odirect in wal sync
in wal_level is higher than minimal. i think in my case when wal traffic is up
to 1gb per 2-3 minutes but discs hardware with 2gb bbu cache (or maybe ssd
under wal) - there would be better if wall traffic could not harm os memory
eviction. and i do not use streaming. my archive command may read wal directly
without os cache. just opinion, i have not done any tests yet. but i am still
under the some memory eviction anomaly.
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