Improve read_local_xlog_page_guts by replacing polling with latch-based waiting

Title

CI (CFBot)

Summary

Stats (from CFBot)

Patch version: v7, Patch count: 3, First patch: +19−2, All patches: +753−15

Topic

Performance

Tags

Logical Replication Performance

Created

2025-09-01 12:02:06

Last modified

2025-10-04 10:21:43 (1 week ago)

Latest email

2025-10-11 03:02:51 (3 days ago)

Status

PG19-3 (2025-11-01 – 2025-11-30): Needs review

Target version

Authors

Xuneng Zhou (dylanzhou)

Reviewers

Committer

Links

Emails

Improve read_local_xlog_page_guts by replacing polling with latch-based waiting: First at 2025-08-27 15:23:34 by Xuneng Zhou <xunengzhou at gmail.com>
Latest at 2025-10-11 03:02:51 by Xuneng Zhou <xunengzhou at gmail.com>
Latest attachment (v7-0002-Add-infrastructure-for-efficient-LSN-waiting.patch) at 2025-10-11 03:02:51 from Xuneng Zhou <xunengzhou at gmail.com>
    Attachment (v7-0002-Add-infrastructure-for-efficient-LSN-waiting.patch) at 2025-10-11 03:02:51 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: Yes)
    Attachment (v6-0001-Replace-inefficient-polling-loops-in-read_local_x.patch) at 2025-10-04 07:21:07 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: Yes)
    Attachment (v5-0000-cover-letter.patch) at 2025-10-02 15:06:14 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: No)
    Attachment (v4-0000-cover-letter.patch) at 2025-09-28 13:47:06 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: No)
    Attachment (v8-0001-Implement-WAIT-FOR-command.patch) at 2025-08-28 08:22:55 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: Yes)
    Attachment (v2-0001-Improve-read_local_xlog_page_guts-by-replacing-po.patch) at 2025-08-27 15:31:03 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: Yes)
    Attachment (v8-0001-Implement-WAIT-FOR-command.patch) at 2025-08-27 15:23:34 from Xuneng Zhou <xunengzhou at gmail.com> (Patch: Yes)

History

When	Who	What
2025-10-04 10:21:43	Xuneng Zhou (dylanzhou)	Changed tags to Logical Replication, Performance
2025-09-28 14:09:26	CFbot	Patch does not need rebase anymore
2025-09-05 10:09:21	CFbot	Patch needs rebase
2025-09-01 12:02:06	Xuneng Zhou (dylanzhou)	Attached mail thread CABPTF7UNft368x-RgOXkfj475OwEbp+VVO-wEXz7StgjD_=6sw@mail.gmail.com
2025-09-01 12:02:06	Xuneng Zhou (dylanzhou)	Created patch record