From: | Jinhua Luo <luajit(dot)io(at)gmail(dot)com> |
---|---|
To: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com> |
Cc: | "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: insert performance |
Date: | 2016-01-13 10:03:35 |
Message-ID: | CAAc9rOy=vw17P5oMU+MDut7ekYNyYVyrYTg6fxZ=FKGGoVSSsQ@mail.gmail.com |
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Lists: | pgsql-performance |
Hi,
I found the insert performance is not related to the table schema.
In fact, I could recur the issue using simple table:
create table test(k bigserial primary key, a int, b int, c text, d text);
test.sql:
insert into test(a, b, c, d) values(3438, 1231,
'ooooooooooooooooooooooooooooooooooooo',
'kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk');
pgbench -r -N -n -c 4 -j 1 -T 600 -f test.sql
I also compile and run it on the latest 9.4 version, the same issue.
Regards,
Jinhua Luo
2016-01-12 3:20 GMT+08:00 Jeff Janes <jeff(dot)janes(at)gmail(dot)com>:
> On Sat, Jan 9, 2016 at 9:57 PM, Jinhua Luo <luajit(dot)io(at)gmail(dot)com> wrote:
>>
>> To make a clean test env, I clone a new table, removing the indexes (keeping
>> the primary key) and triggers, and use pgbench to test insert statement
>> purely.
>
> Can you share the pgbench command line, and the sql file you feed to
> it (and whatever is needed to set up the schema)?
>
>
> Thanks,
>
> Jeff
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