PDF (US Ltr)
- 41.8Mb
PDF (A4)
- 41.9Mb
Man Pages (TGZ)
- 272.3Kb
Man Pages (Zip)
- 378.3Kb
Info (Gzip)
- 4.2Mb
Info (Zip)
- 4.2Mb
Search Results
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-ndbinfo-cpudata-20sec.html
The cpudata_20sec table provides data about CPU usage per 20-second interval over the last 400 seconds.
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-events-statements-current-table.html
This value is computed in microseconds but normalized to picoseconds for easier comparison with other Performance Schema timers. The table stores one row per thread showing the current status of the thread's most recent monitored statement event, so ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-functions.html
MySQL includes built-in SQL functions that format or retrieve Performance Schema data, and that may be used as equivalents for the corresponding sys schema stored functions. The built-in functions can be invoked in any schema and require no ...
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/replication-features-fractional-seconds.html
MySQL 9.7 permits fractional seconds for TIME, DATETIME, and TIMESTAMP values, with up to microseconds (6 digits) precision.
https://dev.mysql.com/doc/refman/9.7/en/replication-options-reference.html
binlog_group_commit_sync_delay: Sets number of microseconds to wait before synchronizing transactions to disk. The following two sections provide basic information about the MySQL command-line options and system variables applicable to replication ...
https://dev.mysql.com/doc/refman/9.7/en/slow-query-log.html
The slow query log consists of SQL statements that take more than long_query_time seconds to execute and require at least min_examined_row_limit rows to be examined. The slow query log can be used to find queries that take a long time to execute ...
https://dev.mysql.com/doc/refman/9.7/en/sys-format-time.html
Depending on the size of the value, the units part is ps (picoseconds), ns (nanoseconds), us (microseconds), ms (milliseconds), s (seconds), m (minutes), h (hours), d (days), or w (weeks). Note format_time() is deprecated, and subject to removal in ...
https://dev.mysql.com/doc/refman/9.7/en/time.html
MySQL recognizes TIME values in several formats, some of which can include a trailing fractional seconds part in up to microseconds (6 digits) precision. MySQL retrieves and displays TIME values in 'hh:mm:ss' format (or 'hhh:mm:ss' format for large ...
https://dev.mysql.com/doc/refman/9.7/en/group-replication-flow-control-stats-component.html
The Group Replication Flow Control Statistics component (component_group_replication_flow_control_stats) enables a number of global status variables which provide information on Group Replication flow control execution. Purpose: Support Group ...