| From: | Sokolov Yura <funny(dot)falcon(at)postgrespro(dot)ru> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, pgsql-hackers-owner(at)postgresql(dot)org |
| Subject: | Re: Fix performance of generic atomics |
| Date: | 2017-09-06 12:21:04 |
| Message-ID: | 10b4ca44e7356eea73902363f2a85f3f@postgrespro.ru |
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| Lists: | pgsql-hackers |
On 2017-09-06 14:54, Sokolov Yura wrote:
> On 2017-09-06 07:23, Tom Lane wrote:
>> Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes:
>>> What scale factor and client count? How many cores per socket? It
>>> looks
>>> like Sokolov was just starting to see gains at 200 clients on 72
>>> cores,
>>> using -N transaction.
>> This means that Sokolov's proposed changes in atomics/generic.h
>> ought to be uninteresting for performance on any platform we care
>> about --- at
>> least for pg_atomic_fetch_add_u32().
>
> May I cite you this way:
I apologize for tone of my previous message.
My tongue is my enemy.
--
Sokolov Yura aka funny_falcon
Postgres Professional: https://postgrespro.ru
The Russian Postgres Company
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