| From: | Srirama Kucherlapati <sriram(dot)rk(at)in(dot)ibm(dot)com> |
|---|---|
| To: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Heikki Linnakangas <hlinnaka(at)gmail(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Peter Eisentraut <peter(at)eisentraut(dot)org>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Noah Misch <noah(at)leadboat(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, "tvk1271(at)gmail(dot)com" <tvk1271(at)gmail(dot)com>, "postgres-ibm-aix(at)wwpdl(dot)vnet(dot)ibm(dot)com" <postgres-ibm-aix(at)wwpdl(dot)vnet(dot)ibm(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Subject: | RE: AIX support |
| Date: | 2024-09-25 06:04:45 |
| Message-ID: | CY8PR15MB56023A063EFA06C0BAB89442DB692@CY8PR15MB5602.namprd15.prod.outlook.com |
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| Lists: | pgsql-hackers |
Hi Heikki,
As requested earlier, I need some assistance from the Postgres side to identify any tool or testcase to calibrate the sync routine performance in Postgres.
I see the below tools for benchmarking.
* Pgbench https://www.postgresql.org/docs/current/pgbench.html
* Pg_test_fsync https://www.postgresql.org/docs/current/pgtestfsync.html
* pg_test_timing https://www.postgresql.org/docs/current/pgtesttiming.html
Please let me know, if these tools are fine or else ca you suggest us with any additional tools to run the benchmarking.
> > Ok, if we don't need the assembler code at all, that's good. A patch to
> > introduce AIX support should not change it for non-AIX powerpc systems
> > though. That might be a good change, but would need to be justified
> > separately, e.g. by some performance testing, and should be a separate
> > patch.
> > If you make no changes to s_lock.h at all, will it work? Why not?
> With the existing asm code I see there are some syntax errors, being hit.
> But after reverting the old changes the issues resolved. Below are diffs.
> Let me know if I need to run any perf tools to check the performance of
> the __sync_lock_test_and_set change.
Thanks,
Sriram.
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