Re: 7.1 vs. 7.2 on AIX 5L

Tatsuo Ishii wrote:
>
> Hi,
>
> I have made a new version of pgbench which allows not to update
> branches and tellers tables, which should significantly reduce the
> contentions. (See attached patches against current. Note that the
> paches also includes changes removing CHECKPOINT command while
> running in initialization mode (pgbench -i)). With the patches you
> could specify -N option not to update branches and tellers tables.
>
> With the new pgbench, I ran a test with current and 7.1 and saw
> not-so-small differences. Any idea to get better performance on 7.2
> and AIX 5L combo?
>
> 7.2 with lwlock.patch rev.2
> 7.1.3
> AIX 5L 4way with 4GB RAM
> testing script is same as my previous postings (except -N for pgbench,
> of course).
>
> ------------------------------------------------------------------------
> Name: pgbench.patch
> pgbench.patch Type: Plain Text (Text/Plain)
> Encoding: 7bit
>
> Name: result-Jan-09.png
> result-Jan-09.png Type: PNG Image (image/png)
> Encoding: base64

Could you add some labels to lines as Tom did ?

We can only guess which line is which.

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Hannu