At Wed, 31 Aug 2022 12:50:19 -0400, Reid Thompson <reid.thomp...@crunchydata.com> wrote in > Hi Hackers, > > Add the ability to limit the amount of memory that can be allocated to > backends.
The patch seems to limit both of memory-context allocations and DSM allocations happen on a specific process by the same budget. In the fist place I don't think it's sensible to cap the amount of DSM allocations by per-process budget. DSM is used by pgstats subsystem. There can be cases where pgstat complains for denial of DSM allocation after the budget has been exhausted by memory-context allocations, or every command complains for denial of memory-context allocation after once the per-process budget is exhausted by DSM allocations. That doesn't seem reasonable. regards. -- Kyotaro Horiguchi NTT Open Source Software Center
