Re: MultiXact\SLRU buffers configuration - Mailing list pgsql-hackers

From Daniel Gustafsson
Subject Re: MultiXact\SLRU buffers configuration
Date
Msg-id 90C1AC09-75E9-4998-8D14-2CFF419EDF0B@yesql.se
Whole thread Raw
In response to Re: MultiXact\SLRU buffers configuration  ("Andrey M. Borodin" <x4mmm@yandex-team.ru>)
List pgsql-hackers

> On 8 Jul 2020, at 09:03, Andrey M. Borodin <x4mmm@yandex-team.ru> wrote:
>
>
>
>> 2 июля 2020 г., в 17:02, Daniel Gustafsson <daniel@yesql.se> написал(а):
>>
>>> On 15 May 2020, at 02:03, Kyotaro Horiguchi <horikyota.ntt@gmail.com> wrote:
>>
>>> Generally in such cases, condition variables would work.  In the
>>> attached PoC, the reader side gets no penalty in the "likely" code
>>> path.  The writer side always calls ConditionVariableBroadcast but the
>>> waiter list is empty in almost all cases.  But I couldn't cause the
>>> situation where the sleep 1000u is reached.
>>
>> The submitted patch no longer applies, can you please submit an updated
>> version?  I'm marking the patch Waiting on Author in the meantime.
> Thanks, Daniel! PFA V2

This version too has stopped applying according to the CFbot.  I've moved it to
the next commitfest as we're out of time in this one and it was only pointed
out now, but kept it Waiting on Author.

cheers ./daniel


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