Reduce cost of ProcArrayRemove/ProcArrayAdd

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ID 7139
Title Reduce cost of ProcArrayRemove/ProcArrayAdd
CI (CFBot) Needs rebase! Needs rebase since 3 days. Failing since 5 days.
Additional links previous successfully applied patch (outdated):
Stats (from CFBot) Unknown
Tags Performance
Created 2026-08-12 16:47:23
Last modified 2026-08-12 16:47:23 (5 days ago)
Latest email 2026-08-12 20:19:22 (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
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Init connection time grows quadratically
First at 2025-05-27 10:45:31 by Потапов Александр <a.potapov at postgrespro.ru>
Latest at 2026-08-12 20:19:22 by Matthias van de Meent <boekewurm+postgres at gmail.com>
Latest attachment (v4-0001-Minor-copy-edits.patch.txt) at 2026-08-12 20:19:22 from Matthias van de Meent <boekewurm+postgres at gmail.com>
    Attachment (v4-0001-Minor-copy-edits.patch.txt) at 2026-08-12 20:19:22 from Matthias van de Meent <boekewurm+postgres at gmail.com> (Patch: No)
    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
2026-08-14 05:18:25 CFbot Patch needs rebase
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
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