| From: | David Rowley <dgrowleyml(at)gmail(dot)com> |
|---|---|
| To: | Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Keep elog(ERROR) and ereport(ERROR) calls in the cold path |
| Date: | 2020-09-22 20:42:33 |
| Message-ID: | CAApHDvo2N31OoA7KzF-t9w12TYVQkvGhK6juvO=6vyovQNoyPg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, 22 Sep 2020 at 19:08, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> I ran another scale=5 TPCH benchmark on v4 against f859c2ffa using gcc
> 9.3. I'm unable to see any gains with this, however, the results were
> pretty noisy. I only ran pgbench for 60 seconds per query. I'll likely
> need to run that a bit longer. I'll do that tonight.
I've attached the results of a TPCH scale=5 run master (f859c2ffa) vs
master + elog_ereport_attribute_cold_v4.patch
It does not look great. The patched version seems to have done about
1.17% less work than master did.
David
| Attachment | Content-Type | Size |
|---|---|---|
| tpch_scale5_elog_ereport_cold_v4_vs_master_10min.ods | application/vnd.oasis.opendocument.spreadsheet | 19.5 KB |
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