[MDEV-19399] do not call slow my_timer_init() several times - Jira

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Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 5.5(EOL), 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5(EOL)
Fix Version/s: 10.2.25, 10.1.41, 10.3.15, 10.4.5
Component/s: Information Schema, Server, Storage Engine - InnoDB, Storage Engine - XtraDB
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Description

my_thr_timer() call times() which is slow at least on my system. Maybe it's due to spectre mitigations, I don't know. Flame graph shows profiling data for empty test. Perfschema and InnoDB storage engines calls my_thr_timer() while both can actually use the one initialized by server.

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fixed_10.1.svg
2019-05-06 12:44
1.14 MB
Eugene Kosov
original_10.1.svg
2019-05-06 12:35
960 kB
Eugene Kosov

Activity

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Assignee:: Eugene Kosov (Inactive)

Reporter:: Eugene Kosov (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 2019-05-06 12:36

Updated:: 2019-05-10 05:30

Resolved:: 2019-05-10 05:30

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