| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Jakub Wartak <jakub(dot)wartak(at)enterprisedb(dot)com> |
| Cc: | "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Yura Sokolov <y(dot)sokolov(at)postgrespro(dot)ru> |
| Subject: | Re: heavily contended lwlocks with long wait queues scale badly |
| Date: | 2024-01-22 08:38:13 |
| Message-ID: | Za4pdef_J6C9dMcY@paquier.xyz |
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| Lists: | pgsql-hackers |
On Fri, Jan 19, 2024 at 01:49:59PM +0100, Jakub Wartak wrote:
> Hi Michael, just to reassure you that it is a good thing. We have a
> customer who reported much better performance on 16.x than on 13~15 in
> very heavy duty LWLock/lockmanager scenarios (ofc, before that was
> committed/released), so I gave it a try here today to see how much can
> be attributed to that single commit.
Ahh. Thanks for the feedback.
--
Michael
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