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https://dev.mysql.com/doc/refman/9.7/en/performance-schema-events-statements-current-table.html
The unit for these values is picoseconds (trillionths of a second). For discussion of picoseconds as the unit for event times and factors that affect time values, see Section 29.4.1, “Performance Schema Event Timing”. This value is computed in ...The table stores one row per thread showing the current status of the thread's most recent monitored statement event, so there is no system variable for configuring the table ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-events-transactions-current-table.html
The unit for these values is picoseconds (trillionths of a second). For discussion of picoseconds as the unit for event times and factors that affect time values, see Section 29.4.1, “Performance Schema Event Timing”. The table stores one row ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-events-waits-current-table.html
The unit for these values is picoseconds (trillionths of a second). For discussion of picoseconds as the unit for event times and factors that affect time values, see Section 29.4.1, “Performance Schema Event Timing”. The table stores one row ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-functions.html
FORMAT_PICO_TIME(time_val) Given a numeric Performance Schema latency or wait time in picoseconds, converts it to human-readable format and returns a string consisting of a value and a units indicator. Times under 1 nanosecond are represented as ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-instrument-naming.html
An instrument name consists of a sequence of elements separated by '/' characters. Example names: wait/io/file/myisam/log wait/io/file/mysys/charset wait/lock/table/sql/handler wait/synch/cond/mysys/COND_alarm ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-performance-timers-table.html
For an explanation of how event timing occurs, see Section 29.4.1, “Performance Schema Event Timing”. For a cycle timer, the frequency is generally related to the CPU speed. For example, on a system with a 2.4GHz processor, the CYCLE may be ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-replication-applier-configuration-table.html
DESIRED_DELAY The number of seconds that the replica must lag the source (CHANGE REPLICATION SOURCE TO option: SOURCE_DELAY). This table shows the configuration parameters that affect transactions applied by the replica. Parameters stored in the ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-setup-metrics-table.html
row *************************** NAME: slow_queries METER: mysql.stats METRIC_TYPE: ASYNC COUNTER NUM_TYPE: INTEGER UNIT: DESCRIPTION: The number of queries that have taken more than long_query_time seconds (Slow_queries) ... The setup_metrics table ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-thread-filtering.html
If joe connects from hosta.example.com, the connection matches the second inserted row. The threads table contains a row for each server thread. Each row contains information about a thread and indicates whether monitoring is enabled for it. For ...
https://dev.mysql.com/doc/refman/9.7/en/pluggable-authentication.html
The second part describes how third-party connector developers can determine the extent to which a connector can take advantage of pluggable authentication capabilities and what steps to take to become more compliant. When a client connects to the ...