Thanks.
I am only able to get over 100K if I change the insert query from:
INSERT INTO test_indexes (int_data )
VALUES ( (RANDOM()*10000)::BIGINT % 2 ); -- note the modulus
38057.023869 tps for PG9.5
28257.312372 tps for PG11
to:
INSERT INTO test_indexes (int_data )
VALUES ( (RANDOM()*10000)::BIGINT );
83065.111054 tps for PG9.5
130080.356992 tps for PG11
So I am assuming at this point you are not able to replicate this behavior? It might be a setting we have on our end, I just don't know what it its yet.
On Tue, 12 Feb 2019 at 15:06, Peter Geoghegan <
pg@bowt.ie> wrote:
On Mon, Feb 11, 2019 at 6:01 PM Saul, Jean Paolo
<paolo.saul@verizonconnect.com> wrote:
> Thanks for the tip Peter. Unfortunately it did not move the needle. Just curious what numbers are you getting when you are testing?
Well over 100k tps, usually ~150k tps, quite consistently (I need to
use -M prepared to get over 100k tps, though). I can see the progress
by using pgbench's -P option (e.g. -P 5 to see progress reports every
5 seconds), which is how I've determined that it's consistent. I am
using the master branch, but I can't think of any reason why it would
be different to v11.
I do have a fairly high end though still workstation grade SSD -- a
Samsung 970 PRO 512GB. I imagine that your server is at least as
powerful as my workstation by every measure, so this shouldn't matter.
--
Peter Geoghegan
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