On Thu, Oct 6, 2016 at 12:36 AM, David A <david@xxxxxxxxxxxxxxxx> wrote: > My DB has has 5TB, it's on Google Cloud Compute, mostly on SSDs, part on > Standard Persistent Disks. > Querying is ok, but deleting, moving between tablespaces, dropping tables, > etc, etc is hugely slow > (note: I do have a number of indexes) Are you sure it's slow and not just lengthy? Hostings tend to have and publish limits on their bandwidths and similar things, and may be you are just saturating your capacity. If you can at least compare the time to move a tablespace against the time of copying a similarly sized file between the same disks someone may be able to say something. > Instance RAM: 60GB > Instance CPU: 16Cores Cores do not help, postgres is single-threaded. RAM MAY help, but I suspect your operations are IO bound. Of course, with the sparseness of the details, one can not say too much. Francisco Olarte. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general