WRT tablespaces: What I'm planning to do, unless somebody has a better
proposal, is to basically rent two big amazon instances, and run pgbench
in parallel over N tablespaces. Once with local SSD and once with local
HDD storage.

Ok.

Not sure how to control that table spaces are actually on distinct dedicated disks with VMs, but this is the idea.

To emphasize potential bad effects without having to build too large a host and involve too many table spaces, I would suggest to reduce significantly the "checkpoint_flush_after" setting while running these tests.

--
Fabien.


--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers

Reply via email to