Reduce cost of ProcArrayRemove/ProcArrayAdd

Title

CI (CFBot)

Summary

Stats (from CFBot)

Patch version: v3, Patch count: 1, First patch: +61−40, All patches: +61−40

Tags

Performance

Created

2026-08-12 16:47:23

Last modified

2026-08-12 16:47:23 (1 hour ago)

Latest email

2026-08-07 14:05:05 (5 days ago)

Status

PG20-2 (2026-09-01 – 2026-09-30): Needs review

Target version

Authors

Maksim Melnikov (manaldush)

Reviewers

Matthias van de Meent (mmeent) Become reviewer

Committer

Links

Emails

Init connection time grows quadratically: First at 2025-05-27 10:45:31 by Потапов Александр <a.potapov at postgrespro.ru>
Latest at 2026-08-07 14:05:05 by "Maksim.Melnikov" <m.melnikov at postgrespro.ru>
Latest attachment (v3-0001-This-patch-reduce-connection-init-close-time.patch) at 2026-08-07 14:05:05 from "Maksim.Melnikov" <m.melnikov at postgrespro.ru>
    Attachment (v3-0001-This-patch-reduce-connection-init-close-time.patch) at 2026-08-07 14:05:05 from "Maksim.Melnikov" <m.melnikov at postgrespro.ru> (Patch: No)
    Attachment (huge_pages_comparison.png) at 2026-06-11 14:31:47 from "Maksim.Melnikov" <m.melnikov at postgrespro.ru> (Patch: No)
    Attachment (ICT_degradation.png) at 2026-06-03 06:33:41 from "Maksim.Melnikov" <m.melnikov at postgrespro.ru> (Patch: No)
    Attachment (init_time_2caa85f4aae_const_threads_2.png) at 2025-06-16 08:56:58 from Потапов Александр <a.potapov at postgrespro.ru> (Patch: No)
    Attachment (init_time_2caa85f4aae.png) at 2025-05-27 11:27:53 from Потапов Александр <a.potapov at postgrespro.ru> (Patch: No)
    Attachment (0001-Fix-fast-connection-rate-issue-for-v16.patch) at 2025-05-27 10:45:31 from Потапов Александр <a.potapov at postgrespro.ru> (Patch: No)

History

When	Who	What
2026-08-12 16:47:36	Matthias van de Meent (mmeent)	Added mmeent as reviewer
2026-08-12 16:47:23	Matthias van de Meent (mmeent)	Attached mail thread 3bdba-68359800-d-249da480@139845401
2026-08-12 16:47:23	Matthias van de Meent (mmeent)	Created patch record