| From: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
|---|---|
| To: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: extend pgbench expressions with functions |
| Date: | 2016-02-17 08:22:36 |
| Message-ID: | alpine.DEB.2.10.1602170916030.2706@sto |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Hello Michaël,
> \set aid 1 + 1
> pgbench -f addition.sql -t 50000000
>
> I have the following:
> HEAD: 3.5~3.7M TPS
> list method: 3.6~3.7M TPS
> array method: 3.4~3.5M TPS
> So all approaches have a comparable performance.
Yep, the execution trace is pretty similar in all cases, maybe with a
little more work for the array method, although I'm surprise that the
difference is discernable.
> Btw, patch 2 is returning a warning for me:
> It is trying to compare a 32b integer with an int64 value, evalFunc
> needed an int64.
Indeed. My gcc 4.8.4 with --Wall does not show the warning, too bad.
Attached is the fixed patch for the array method.
--
Fabien
| Attachment | Content-Type | Size |
|---|---|---|
| pgbench-funcs-32-a-2.patch | text/x-diff | 18.1 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Magnus Hagander | 2016-02-17 08:24:26 | Re: commitfest application doesn't see new patch |
| Previous Message | Rushabh Lathia | 2016-02-17 08:01:45 | Should PostgresFDW ImportForeignSchema should import the remote table default expression? |