[SERVER-64465] Investigate and improve the negative scaling at high-concurrency levels for FIFO ticketholder Created: 14/Mar/22 Updated: 03/May/22 Resolved: 03/May/22 |
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| Status: | Closed |
| Project: | Core Server |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Major - P3 |
| Reporter: | Jordi Olivares Provencio | Assignee: | Daniel Gomez Ferro |
| Resolution: | Won't Do | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Issue Links: |
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| Sprint: | Execution Team 2022-04-04, Execution Team 2022-04-18, Execution Team 2022-05-02, Execution Team 2022-05-16 | ||||||||
| Participants: | |||||||||
| Description |
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With the work on This ticket's scope is thus to investigate why this is the case and if possible to mitigate it. |
| Comments |
| Comment by Jordi Olivares Provencio [ 15/Mar/22 ] |
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A cursory investigation to the drop-off in acquisitions leads to the _queueMutex being extremely contended with a high number of threads. If possible, work should be devoted to investigating how to remove contingency on it or to remove it entirely altogether. |