Re: Make ringbuffer threshold and ringbuffer sizes configurable? - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Make ringbuffer threshold and ringbuffer sizes configurable?
Date
Msg-id 20200206051909.dmyvh4ivz2l4nvyl@alap3.anarazel.de
Whole thread Raw
In response to RE: Make ringbuffer threshold and ringbuffer sizes configurable?  ("tsunakawa.takay@fujitsu.com" <tsunakawa.takay@fujitsu.com>)
List pgsql-hackers
Hi,

On 2020-02-06 05:12:11 +0000, tsunakawa.takay@fujitsu.com wrote:
> I think per-table reloption is necessary as well as or instead of GUC, because the need for caching depends on the
table(see below for Oracle's manual.)
 

I'm inclined to not do that initially. It's going to be controversial
enough to add the GUCs.


> I'm afraid it would be confusing for a user-settable parameter to have
> different units (percent and size).  I think just the positive
> percentage would suffice.

IDK, I feel like there's good reasons to use either. But I'd gladly take
just percent if that's the general concensus, rather than not getting
the improvement at all.

Greetings,

Andres Freund



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