Here is a updated patch to add query modes into pgbench in order to
measure performance of simple protocol, extended protocol and
prepared statements with it.
[PATCHES] Patch for testing query modes on pgbench
A new runtime option (-M) is added:
Choose the query mode from the follows. default is simple.
- simple: using simple query protocol.
- extended: using extended protocol.
- prepared: using extended protocol with prepared statements.
Extended protocol is slower than simple protocol. I think it is a problem
because we have to use the protocol (and cannot use prepared statements)
in some situations, such as connectiong with JDBC to partitioned tables.
$ pgbench -S -n -c5 -t10000 -M simple
tps = 3567.351598 (excluding connections establishing)
$ pgbench -S -n -c5 -t10000 -M extended
tps = 2877.697842 (excluding connections establishing)
$ pgbench -S -n -c5 -t10000 -M prepared
tps = 4532.680627 (excluding connections establishing)
NTT Open Source Software Center
pgsql-patches by date
|Next:||From: NikhilS||Date: 2008-03-18 07:48:19|
|Subject: Re: UPDATE using sub selects|
|Previous:||From: KaiGai Kohei||Date: 2008-03-18 03:16:27|
|Subject: Re: [0/4] Proposal of SE-PostgreSQL patches|