Hi,
On 2025-04-10 13:50:36 +0000, Bertrand Drouvot wrote:
> Thanks for the patch! That sounds like a great addition. I was doing some
> tests and did not see any issues. Also while doing the tests I thouhgt that it
> could be useful to evict only from a subset of NUMA nodes (now that NUMA
> awareness is in). We'd need to figure out what to do for buffers that are spread
> across NUMA nodes though.
>
> Does that sound like an idea worth to spend time on? (If so, I'd be happy to work
> on it).
I'm not sure that's common enough to warrant its own function. You can do that
with pg_buffercache_evict(), it'll be slower than pg_buffercache_evict_all(),
but given that determining the numa node already is somewhat expensive, I'm
not sure it's going to make that big a difference.
Greetings,
Andres Freund