Details
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Bug
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Status: Closed (View Workflow)
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Critical
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Resolution: Not a Bug
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10.1.47, 10.1.48, 10.2.34, 10.2.35, 10.3.25, 10.3.26, 10.4.15, 10.4.16, 10.5.6, 10.5.7
Description
The performance regression test suite shows a significant reduction of the number of connect; SELECT 1; disconnect; cycles that the server allows.
It affects the last two releases in the 10.1 .. 10.5 branches. This table shows the last 4 releases (2 good, 2 bad).
Test 't_connect-TC=default' - connect test, default thread cache size
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workload: connect; SELECT 1 FROM dual; disconnect
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numbers are connects per second
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#thread count 1 8 16 32 64 128 256
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mariadb-10.1.45 2352.8 17846 19485 19080 19185 19530 18095
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mariadb-10.1.46 2338.2 17689 19723 19509 19097 18876 17951
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mariadb-10.1.47 2222.9 16003 18200 17919 17533 18101 16975
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mariadb-10.1.48 2222.1 16045 17830 17458 17415 17616 16809
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mariadb-10.2.32 6324.0 36137 84842 106303 103993 104089 81115
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mariadb-10.2.33 5632.8 35125 84811 106135 105619 105257 81129
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mariadb-10.2.34 5904.1 36200 75119 77941 77911 78606 69920
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mariadb-10.2.35-pre 6423.6 35748 74842 77825 76804 77706 69122
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mariadb-10.3.23 6076.1 35412 85235 107689 104335 108150 82766
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mariadb-10.3.24 6033.5 35755 86277 108305 107284 105296 81852
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mariadb-10.3.25 6087.5 35786 75976 78890 78415 78507 70032
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mariadb-10.3.26-pre 6069.6 35561 76046 79188 78527 78440 70107
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mariadb-10.4.13 5913.2 35183 83286 106969 106577 107517 82435
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mariadb-10.4.14 5856.8 34662 82742 105578 105473 106174 81587
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mariadb-10.4.15 5995.8 34949 74532 77821 77096 77449 69387
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mariadb-10.4.16-pre 5595.0 34511 74461 77918 78059 77830 70050
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mariadb-10.5.4 6673.0 36643 103875 129540 132678 96475 98152
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mariadb-10.5.5 5694.4 36919 103683 130704 133107 101547 100085
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mariadb-10.5.6 6162.1 36409 97850 116103 121092 106306 99883
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mariadb-10.5.7-pre 5609.8 36988 97164 118628 121102 109606 93927
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