public inbox for [email protected]  
help / color / mirror / Atom feed
From: Bharath Rupireddy <[email protected]>
To: Jeroen Vermeulen <[email protected]>
Cc: [email protected]
Subject: Re: libpq: PQgetCopyData() and allocation overhead
Date: Mon, 27 Feb 2023 19:18:14 +0530
Message-ID: <CALj2ACVaBEbFnBwJ44Uuy7xwr50M+wwTJoEz0C9dFOc=iZeTDw@mail.gmail.com> (raw)
In-Reply-To: <CA+zULE56RADYr4R=ss=bvrzA2r6PyzWE98Gkkwr_7nOzKsSd-A@mail.gmail.com>
References: <CA+zULE5AYd+78w7Uu7jN=5N3w-9vsKuK2WrpjkKwS65hyhWfbw@mail.gmail.com>
	<CALj2ACXiC3Wy7o=81j8jpY=nQq3Hs4y+06gXDkOBrmoO+JDrrw@mail.gmail.com>
	<CA+zULE6bV9yg9+=u0KAhjz-C_YpDr6bh5YknkffgqDHiKWugOg@mail.gmail.com>
	<CA+zULE56RADYr4R=ss=bvrzA2r6PyzWE98Gkkwr_7nOzKsSd-A@mail.gmail.com>

On Fri, Feb 10, 2023 at 5:49 PM Jeroen Vermeulen <[email protected]> wrote:
>
> OK, I've updated the PR with a benchmark (in the main directory).
>
> On this benchmark I'm seeing about a 24% reduction in "user" CPU time, and a 8% reduction in "system" CPU time.  (Almost no reduction in wall-clock time.)

I can help run some logical replication performance benchmarks
tomorrow. Would you mind cleaning the PR and providing the changes
(there are multiple commits in the PR) as a single patch here for the
sake of ease of review and test?

-- 
Bharath Rupireddy
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com






view thread (6+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected]
  Subject: Re: libpq: PQgetCopyData() and allocation overhead
  In-Reply-To: <CALj2ACVaBEbFnBwJ44Uuy7xwr50M+wwTJoEz0C9dFOc=iZeTDw@mail.gmail.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox