Fix quadratic LWLock wait queue behaviour

Edit
ID 3992
Title Fix quadratic LWLock wait queue behaviour
CI (CFBot) Not processed
Stats (from CFBot) Unknown
Topic Performance
Tags
Created 2022-11-01 01:11:13
Last modified 2022-11-21 23:07:33 (2 years ago)
Latest email 2022-11-21 15:31:14 (2 years ago)
Status
2022-11 (2022-11-01 – 2022-11-30): Committed
Target version
Authors Andres Freund (andresfreund)
Reviewers Bharath Rupireddy (bharathrupireddy)Become reviewer
Committer Andres Freund (andresfreund)
Links
Emails
heavily contended lwlocks with long wait queues scale badly
First at 2022-10-27 16:59:14 by Andres Freund <andres at anarazel.de>
Latest at 2022-11-21 15:31:14 by "Jonathan S. Katz" <jkatz at postgresql.org>
Latest attachment (v3-0001-lwlock-fix-quadratic-behaviour-with-very-long-wai.patch) at 2022-10-31 23:51:14 from Andres Freund <andres at anarazel.de>
    Attachment (v3-0001-lwlock-fix-quadratic-behaviour-with-very-long-wai.patch) at 2022-10-31 23:51:14 from Andres Freund <andres at anarazel.de> (Patch: Yes)
    Attachment (fix-lwlock-queue.diff) at 2022-10-27 16:59:14 from Andres Freund <andres at anarazel.de> (Patch: Yes)
History
When Who What
2022-11-21 23:07:33 Andres Freund (andresfreund) Closed in commitfest 2022-11 with status: Committed
2022-11-21 23:07:33 Andres Freund (andresfreund) Changed committer to andresfreund
2022-11-01 11:07:15 Bharath Rupireddy (bharathrupireddy) Added bharathrupireddy as reviewer
2022-11-01 01:11:25 Andres Freund (andresfreund) Changed authors to Andres Freund (andresfreund)
2022-11-01 01:11:13 Andres Freund (andresfreund) Attached mail thread 20221027165914.2hofzp4cvutj6gin@awork3.anarazel.de
2022-11-01 01:11:13 Andres Freund (andresfreund) Created patch record
Edit