Reduce timing overhead of EXPLAIN ANALYZE using rdtsc

Title

CI (CFBot)

Needs rebase! Needs rebase since 1 week. Failing since 1 week.
Additional links previous successfully applied patch (outdated):

Summary

Stats (from CFBot)

Unknown

Topic

Performance

Tags

Created

2025-03-01 07:48:09

Last modified

2025-07-27 19:52:27 (1 week ago)

Latest email

2025-07-29 02:30:11 (1 week ago)

Status

PG19-2 (2025-09-01 - 2025-09-30): Needs review

2025-03 (2025-03-01 - 2025-04-08): Moved to different CF

Target version

Authors

Andres Freund (andresfreund), Lukas Fittl (lfittl), David Geier (geidav)

Reviewers

Become reviewer

Committer

Links

Emails

Reduce timing overhead of EXPLAIN ANALYZE using rdtsc?: First at 2020-06-12 23:28:10 by Andres Freund <andres at anarazel.de>
Latest at 2025-07-29 02:30:11 by Michael Paquier <michael at paquier.xyz>
Latest attachment (v11-0003-pg_test_timing-Add-fast-flag-to-test-fast-timing.patch) at 2025-07-27 19:50:54 from Lukas Fittl <lukas at fittl.com>
    Attachment (v11-0003-pg_test_timing-Add-fast-flag-to-test-fast-timing.patch) at 2025-07-27 19:50:54 from Lukas Fittl <lukas at fittl.com> (Patch: Yes)
    Attachment (v10-0001-instr_time-Add-INSTR_TIME_SET_SECONDS-INSTR_TIME.patch) at 2025-03-01 07:45:58 from Lukas Fittl <lukas at fittl.com> (Patch: Yes)
    Attachment (v9-0001-instr_time-Add-INSTR_TIME_SET_SECONDS-INSTR_TIME_.patch) at 2023-02-20 10:36:32 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (v8-0001-instr_time-Add-INSTR_TIME_SET_SECONDS-INSTR_TIME_.patch) at 2023-02-14 11:11:01 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (v7-0001-instr_time-Add-INSTR_TIME_SET_SECONDS-INSTR_TIME_.patch) at 2023-01-24 13:30:34 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (v9-0001-instr_time-Add-INSTR_TIME_SET_SECONDS-INSTR_TIME_.patch) at 2023-01-21 05:31:57 from Andres Freund <andres at anarazel.de> (Patch: Yes)
    Attachment (v8-0001-Zero-initialize-instr_time-uses-causing-compiler-.patch) at 2023-01-21 00:40:32 from Andres Freund <andres at anarazel.de> (Patch: Yes)
    Attachment (v7-0001-Zero-initialize-instr_time-uses-causing-compiler-.patch) at 2023-01-17 16:47:58 from Andres Freund <andres at anarazel.de> (Patch: Yes)
    Attachment (0001-Change-instr_time-to-just-store-nanoseconds-v6.patch) at 2023-01-04 12:02:05 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (0001-Change-instr_time-to-just-store-nanoseconds-v5.patch) at 2023-01-03 08:38:20 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (0001-Change-instr_time-to-just-store-nanoseconds-v4.patch) at 2023-01-02 13:28:20 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (0001-WIP-Change-instr_time-to-just-store-nanoseconds-v3.patch) at 2022-11-19 20:06:23 from David Geier <geidav.pg at gmail.com> (Patch: Yes)
    Attachment (v2-0002-WIP-Use-cpu-reference-cycles-via-rdtsc-to-measure.patch) at 2022-07-01 08:23:01 from Lukas Fittl <lukas at fittl.com> (Patch: Yes)
    Attachment (v1-0001-WIP-Change-instr_time-to-just-store-nanoseconds-t.patch) at 2020-06-12 23:28:10 from Andres Freund <andres at anarazel.de> (Patch: Yes)

History

When	Who	What
2025-08-01 09:33:21	CFbot	Patch needs rebase
2025-07-28 20:22:27	CFbot	Patch does not need rebase anymore
2025-07-27 19:52:27	Lukas Fittl (lfittl)	New status: Needs review
2025-07-27 19:51:45	Lukas Fittl (lfittl)	Moved from CF 2025-03 to CF PG19-2
2025-03-11 04:14:43	vigneshwaran C (vignesh.postgres)	New status: Waiting on Author
2025-03-06 13:19:42	CFbot	Patch needs rebase
2025-03-01 07:48:36	Lukas Fittl (lfittl)	Changed authors to Andres Freund (andresfreund), Lukas Fittl (lfittl), David Geier (geidav)
2025-03-01 07:48:10	Lukas Fittl (lfittl)	Attached mail thread 20200612232810.f46nbqkdhbutzqdg@alap3.anarazel.de
2025-03-01 07:48:09	Lukas Fittl (lfittl)	Created patch record

Edit