On Wed, Jan 24, 2018 at 12:25 PM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > At the glibc level ... I'm not so sure. AFAIK glibc uses an allocator > with similar ideas (freelists, ...) so hopefully it's fine too. > > And then there are the systems without glibc, or with other libc > implementations. No idea about those.
My guess is that a fairly common pattern for larger chunks will be to round the size up to a multiple of 4kB, the usual memory page size. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company
