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Information Schema THREAD_POOL_STATS Table

The Information Schema THREAD_POOL_STATS table provides performance statistics for the thread pool, such as thread creation and efficiency.

This table is available from MariaDB 10.5.

The table provides performance counter information for the thread pool, and contains the following columns:

Column

Description

GROUP_ID

the thread group this row is showing data for

THREAD_CREATIONS

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number of threads created for this group so far

THREAD_CREATIONS_DUE_TO_STALL

number of threads created due to detected stalls

WAKES

standby thread wakeups

WAKES_DUE_TO_STALL

wakeups due to stalls

THROTTLES

how often thread creation was throttled, see also:

STALLS

number of detected stalls

POLLS_BY_LISTENER

POLLS_BY_WORKER

DEQUEUES_BY_LISTENER

DEQUEUES_BY_WORKER

thread-creation-throttling