I started db creation over, this time with 16GB maintenance_work_mem and fsync=off and it does not seem to have a great effect. After again 5 hours, during index creation, disk and cpu are barely used: 95% idle and 2-3 MB/s writes (150 reads/s, 90 writes/s).
Sébastien On Thu, Sep 13, 2012 at 1:29 AM, John R Pierce <pie...@hogranch.com> wrote: > On 09/12/12 10:01 PM, Sébastien Lorion wrote: > >> pgbench initialization has been going on for almost 5 hours now and still >> stuck before vacuum starts .. something is definitely wrong as I don't >> remember it took so long first time I created the db.... >> > > pgbench initialization with a high scale factor, like the -s 10000 I > frequently use, does take quite a few hours. you need a large > maintenance_work_mem, or the create index phase will take a really long > time to index the 150GB worth of tables its created. > > > > > -- > john r pierce N 37, W 122 > santa cruz ca mid-left coast > > > > > -- > Sent via pgsql-general mailing list (pgsql-general@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/**mailpref/pgsql-general<http://www.postgresql.org/mailpref/pgsql-general> >
