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Single-threaded grouping performance lower #3330

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Single-threaded grouping performance lower#3330
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performanceregression

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@mattdowle
mattdowle
opened on Jan 29, 2019

Follow up to Jan's finding here : #2533 (comment)
With setDTthreads(1) he found a performance drop with 1.12.0 :

  • 8 groups

7.7s is now 12.8s
9.8s is now 15.8s

  • 1e6 groups

6s is now 12.4s
7.6s is now 17.6s

Activity

  1. mattdowle
    added this to the 1.12.4 milestone on Jan 29, 2019
  2. jangorecki
    assigned
    jangorecki
    and unassigned
    jangorecki
    on Jan 30, 2019
  3. jangorecki
    modified the milestones: 1.12.4, 1.13.0 on Jul 25, 2019
  4. mattdowle
    modified the milestones: 1.12.7, 1.12.9 on Dec 8, 2019
  5. jangorecki
    added
    performance
    on Apr 5, 2020
  6. jangorecki
    added
    regression
    on May 22, 2020
  7. mattdowle
    modified the milestones: 1.13.1, 1.13.3 on Oct 17, 2020
  8. jangorecki
    modified the milestones: 1.14.3, on Jul 19, 2022
  9. jangorecki
    modified the milestones: , 1.15.1 on Oct 29, 2023
  10. jangorecki
    removed this from the 1.16.0 milestone on Nov 6, 2023
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