Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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10.5, 10.6, 10.11, 11.4
Description
Each time a listener socket becomes ready, MariaDB calls accept() ten times (MAX_ACCEPT_RETRY), even if all but the first one return EAGAIN because there are no more connections.
This causes unnecessary CPU usage - on our server, the CPU load of that thread, which does nothing but accept(), saturates one CPU core by ~45%.
The loop should stop after the first EAGAIN.
Attachments
Activity
| Field | Original Value | New Value |
|---|---|---|
| Priority | Trivial [ 5 ] | Major [ 3 ] |
| Affects Version/s | 10.5 [ 23123 ] | |
| Affects Version/s | 10.6 [ 24028 ] | |
| Affects Version/s | 10.11 [ 27614 ] | |
| Affects Version/s | 11.4 [ 29301 ] |
| Fix Version/s | 10.6 [ 24028 ] | |
| Fix Version/s | 10.11 [ 27614 ] | |
| Fix Version/s | 11.4 [ 29301 ] |
| Assignee | Sergei Golubchik [ serg ] |
| Status | Open [ 1 ] | In Progress [ 3 ] |
| Assignee | Sergei Golubchik [ serg ] | Vladislav Vaintroub [ wlad ] |
| Status | In Progress [ 3 ] | In Review [ 10002 ] |
| Status | In Review [ 10002 ] | Stalled [ 10000 ] |
| issue.field.resolutiondate | 2024-09-24 19:45:12.0 | 2024-09-24 19:45:12.279 |
| Fix Version/s | 10.5.27 [ 29902 ] | |
| Fix Version/s | 10.6 [ 24028 ] | |
| Fix Version/s | 10.11 [ 27614 ] | |
| Fix Version/s | 11.4 [ 29301 ] | |
| Resolution | Fixed [ 1 ] | |
| Status | Stalled [ 10000 ] | Closed [ 6 ] |
| Fix Version/s | 10.6.20 [ 29903 ] | |
| Fix Version/s | 10.11.10 [ 29904 ] | |
| Fix Version/s | 11.2.6 [ 29906 ] | |
| Fix Version/s | 11.4.4 [ 29907 ] |
| Labels | performance |