| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Marginal performance improvement for fast-path locking |
| Date: | 2013-11-28 21:19:15 |
| Message-ID: | CA+TgmoaC03yc+0jxaQ2DWSa7-agG7BKwvxwAkspN=jufHD8C8w@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Nov 28, 2013 at 3:09 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> But I don't think it'll hurt anything. If you can prove that it
>> actually helps something, I'll buy you a glass of wine. :-)
>
> FWIW, I did try benchmarking this using "pgbench -S -c 10 -M prepared".
> If there's any difference, it's below the noise floor. (I see about
> 0.2% or so run-to-run variation even without changing anything.)
No wine for you.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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