Re: Improving connection scalability (src/backend/storage/ipc/procarray.c) - Mailing list pgsql-hackers

From Daniel Gustafsson
Subject Re: Improving connection scalability (src/backend/storage/ipc/procarray.c)
Date
Msg-id 3A9C8E3D-DE5D-4374-A3A0-5AC1F43260BD@yesql.se
Whole thread Raw
In response to Re: Improving connection scalability (src/backend/storage/ipc/procarray.c)  (Ranier Vilela <ranier.vf@gmail.com>)
List pgsql-hackers
> On 28 May 2022, at 16:12, Ranier Vilela <ranier.vf@gmail.com> wrote:

> Just because I don't have enough hardware to force GetSnapShotData() doesn't mean optimizing it won't make a
difference. 

Quoting Andres from upthread:

    "To improve something like GetSnapshotData() you first have to come up with
    a workload that shows it being a meaningful part of a profile.  Unless it
    is, performance differences are going to just be due to various forms of
    noise."

If you think this is a worthwhile improvement, you need to figure out a way to
reliably test it in order to prove it.

--
Daniel Gustafsson        https://vmware.com/




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