Reduce timing overhead of EXPLAIN ANALYZE using rdtsc

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ID 3751
Title Reduce timing overhead of EXPLAIN ANALYZE using rdtsc
CI (CFBot) Not processed
Stats (from CFBot) Unknown
Topic Performance
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Created 2022-07-01 08:24:07
Last modified 2024-02-01 18:44:02 (1 year ago)
Latest email 2025-10-22 13:32:03 (4 days ago)
Status
2024-01 (2024-01-01 – 2024-01-31): Returned with feedback
2023-11 (2023-11-01 – 2023-12-04): Moved to different CF
2023-09 (2023-09-01 – 2023-09-30): Moved to different CF
2023-07 (2023-07-01 – 2023-07-31): Moved to different CF
2023-03 (2023-03-01 – 2023-04-08): Moved to different CF
2023-01 (2023-01-01 – 2023-01-31): Moved to different CF
2022-09 (2022-09-01 – 2022-09-30): Moved to different CF
2022-07 (2022-07-01 – 2022-07-31): Moved to different CF
Target version 16
Authors Andres Freund (andresfreund), Lukas Fittl (lfittl), David Geier (geidav)
Reviewers Lukas Fittl (lfittl), Hannu Krosing (hannukrosing)Become reviewer
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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 2025-10-22 13:32:03 by Andres Freund <andres at anarazel.de>
Latest attachment (v12-0001-cpuidex-check-Support-detecting-newer-GCC-versio.patch) at 2025-10-19 18:16:20 from Álvaro Herrera <alvherre at kurilemu.de>
    Attachment (v12-0001-cpuidex-check-Support-detecting-newer-GCC-versio.patch) at 2025-10-19 18:16:20 from Álvaro Herrera <alvherre at kurilemu.de> (Patch: Yes)
    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
2024-02-01 18:44:02 vigneshwaran C (vignesh.postgres) Closed in commitfest 2024-01 with status: Returned with feedback
2024-01-27 02:51:50 vigneshwaran C (vignesh.postgres) New status: Waiting on Author
2023-12-04 09:17:14 John Naylor (john.naylor) Closed in commitfest 2023-11 with status: Moved to next CF
2023-10-02 11:05:55 Peter Eisentraut (petere) Closed in commitfest 2023-09 with status: Moved to next CF
2023-08-02 19:34:54 Daniel Gustafsson (d_gustafsson) Closed in commitfest 2023-07 with status: Moved to next CF
2023-04-09 02:31:38 Greg Stark (stark) Closed in commitfest 2023-03 with status: Moved to next CF
2023-03-30 14:03:04 Hannu Krosing (hannukrosing) Added hannukrosing as reviewer
2023-01-31 16:16:31 vigneshwaran C (vignesh.postgres) Closed in commitfest 2023-01 with status: Moved to next CF
2023-01-06 05:44:48 Lukas Fittl (lfittl) Added lfittl as reviewer
2023-01-02 21:03:41 David Geier (geidav) Changed authors to Andres Freund (andresfreund), Lukas Fittl (lfittl), David Geier (geidav)
2023-01-02 21:02:34 David Geier (geidav) Closed in commitfest 2022-09 with status: Moved to next CF
2023-01-02 21:02:21 David Geier (geidav) New status: Needs review
2022-11-18 10:32:57 David Geier (geidav) Removed geidav from reviewers
2022-11-18 10:32:47 David Geier (geidav) Added geidav as reviewer
2022-10-12 08:35:29 Michael Paquier (michael-kun) Closed in commitfest 2022-09 with status: Returned with feedback
2022-10-12 08:33:55 Michael Paquier (michael-kun) New status: Waiting on Author
2022-08-01 21:23:42 Jacob Champion (jchampion) Closed in commitfest 2022-07 with status: Moved to next CF
2022-07-01 08:24:29 Lukas Fittl (lfittl) Changed authors to Andres Freund (andresfreund), Lukas Fittl (lfittl)
2022-07-01 08:24:29 Lukas Fittl (lfittl) Changed targetversion to 16
2022-07-01 08:24:07 Lukas Fittl (lfittl) Attached mail thread 20200612232810.f46nbqkdhbutzqdg@alap3.anarazel.de
2022-07-01 08:24:07 Lukas Fittl (lfittl) Created patch record
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