On Thu, 2021-06-10 at 13:06 -0500, John Wiencek wrote: > I’m looking for assistance in determining kernel setting for a VM RHEL-8 linux server running postgresql-13. > > I have 3 server groupings > > 1) 2 vcpu’s 8gb memory > 2) 4 cpu’s 16gb memory > 3) 8 cpu’s 32gb memory > > I’ve read various articles and the PostgreSQL documentation . Does anyone have practical experiences doing this kind of set up > > Do kernel setting requirements change based on the number of cpu’s and amount of memory? I’ve not read any mention of this. I recommend setting vm.overcommit_memory = 2 vm.overcommit_ratio (the correct value depends on your swap) vm.swappiness = 0 Also, disable Transparent Hugepages. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com
