memory_summary_by_host_by_event_name

This page is part of MariaDB's Enterprise Documentation.

The parent of this page is: Performance Schema

Topics on this page:

Overview
DETAILS
- SCHEMA
CHANGE HISTORY
EXTERNAL REFERENCES

Overview

In 10.6 ES, 10.6 CS, 10.5 ES, 10.5 CS:: A description for this Performance-schema Table has not yet been added to this Documentation.
In 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS, 10.2 ES, 10.2 CS:: Not present

DETAILS

SCHEMA

CREATE TABLE `memory_summary_by_host_by_event_name` (
  `HOST` char(60) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin DEFAULT NULL COMMENT 'Host portion of the account.',
  `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event name.',
  `COUNT_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of allocations to memory.',
  `COUNT_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of attempts to free the allocated memory.',
  `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes allocated.',
  `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes freed',
  `LOW_COUNT_USED` bigint(20) NOT NULL COMMENT 'Lowest number of allocated blocks (lowest value of CURRENT_COUNT_USED).',
  `CURRENT_COUNT_USED` bigint(20) NOT NULL COMMENT 'Currently allocated blocks that have not been freed (COUNT_ALLOC minus COUNT_FREE).',
  `HIGH_COUNT_USED` bigint(20) NOT NULL COMMENT 'Highest number of allocated blocks (highest value of CURRENT_COUNT_USED).',
  `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Lowest number of bytes used.',
  `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Current number of bytes used (total allocated minus total freed).',
  `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Highest number of bytes used.'
)

CHANGE HISTORY

Release Series	History
10.6 Enterprise	Schema changed in MariaDB Enterprise Server 10.6.4-1: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8mb3 COLLATE utf8_binutf8mb3_bin DEFAULT NULL, `EVENT_NAME` varchar(128) NOT NULL, `COUNT_ALLOC` bigint(20) unsigned NOT NULL, `COUNT_FREE` bigint(20) unsigned NOT NULL, `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL, `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL, `LOW_COUNT_USED` bigint(20) NOT NULL, `CURRENT_COUNT_USED` bigint(20) NOT NULL, `HIGH_COUNT_USED` bigint(20) NOT NULL, `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL, `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL, `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL ) Schema changed in MariaDB Enterprise Server 10.6.5-2: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin DEFAULT NULL COMMENT 'Host portion of the account.', `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event name.', `COUNT_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of allocations to memory.', `COUNT_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of attempts to free the allocated memory.', `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes allocated.', `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes freed', `LOW_COUNT_USED` bigint(20) NOT NULL COMMENT 'Lowest number of allocated blocks (lowest value of CURRENT_COUNT_USED).', `CURRENT_COUNT_USED` bigint(20) NOT NULL COMMENT 'Currently allocated blocks that have not been freed (COUNT_ALLOC minus COUNT_FREE).', `HIGH_COUNT_USED` bigint(20) NOT NULL COMMENT 'Highest number of allocated blocks (highest value of CURRENT_COUNT_USED).', `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Lowest number of bytes used.', `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Current number of bytes used (total allocated minus total freed).', `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Highest number of bytes used.' )
10.6 Community	Present starting in MariaDB Community Server 10.6.0. Schema changed in MariaDB Community Server 10.6.1: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8mb3 COLLATE utf8_binutf8mb3_bin DEFAULT NULL, `EVENT_NAME` varchar(128) NOT NULL, `COUNT_ALLOC` bigint(20) unsigned NOT NULL, `COUNT_FREE` bigint(20) unsigned NOT NULL, `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL, `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL, `LOW_COUNT_USED` bigint(20) NOT NULL, `CURRENT_COUNT_USED` bigint(20) NOT NULL, `HIGH_COUNT_USED` bigint(20) NOT NULL, `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL, `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL, `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL ) Schema changed in MariaDB Community Server 10.6.5: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8mb3 COLLATE utf8mb3_bin DEFAULT NULL COMMENT 'Host portion of the account.', `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event name.', `COUNT_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of allocations to memory.', `COUNT_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of attempts to free the allocated memory.', `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes allocated.', `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes freed', `LOW_COUNT_USED` bigint(20) NOT NULL COMMENT 'Lowest number of allocated blocks (lowest value of CURRENT_COUNT_USED).', `CURRENT_COUNT_USED` bigint(20) NOT NULL COMMENT 'Currently allocated blocks that have not been freed (COUNT_ALLOC minus COUNT_FREE).', `HIGH_COUNT_USED` bigint(20) NOT NULL COMMENT 'Highest number of allocated blocks (highest value of CURRENT_COUNT_USED).', `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Lowest number of bytes used.', `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Current number of bytes used (total allocated minus total freed).', `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Highest number of bytes used.' )
10.5 Enterprise	Added in MariaDB Enterprise Server 10.5.3-1. Schema changed in MariaDB Enterprise Server 10.5.13-9: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL COMMENT 'Host portion of the account.', `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event name.', `COUNT_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of allocations to memory.', `COUNT_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of attempts to free the allocated memory.', `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes allocated.', `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes freed', `LOW_COUNT_USED` bigint(20) NOT NULL COMMENT 'Lowest number of allocated blocks (lowest value of CURRENT_COUNT_USED).', `CURRENT_COUNT_USED` bigint(20) NOT NULL COMMENT 'Currently allocated blocks that have not been freed (COUNT_ALLOC minus COUNT_FREE).', `HIGH_COUNT_USED` bigint(20) NOT NULL COMMENT 'Highest number of allocated blocks (highest value of CURRENT_COUNT_USED).', `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Lowest number of bytes used.', `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Current number of bytes used (total allocated minus total freed).', `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Highest number of bytes used.' )
10.5 Community	Added in MariaDB Community Server 10.5.2. Schema changed in MariaDB Community Server 10.5.13: ... CREATE TABLE `memory_summary_by_host_by_event_name` ( `HOST` char(60) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL COMMENT 'Host portion of the account.', `EVENT_NAME` varchar(128) NOT NULL COMMENT 'Event name.', `COUNT_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of allocations to memory.', `COUNT_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of attempts to free the allocated memory.', `SUM_NUMBER_OF_BYTES_ALLOC` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes allocated.', `SUM_NUMBER_OF_BYTES_FREE` bigint(20) unsigned NOT NULL COMMENT 'Total number of bytes freed', `LOW_COUNT_USED` bigint(20) NOT NULL COMMENT 'Lowest number of allocated blocks (lowest value of CURRENT_COUNT_USED).', `CURRENT_COUNT_USED` bigint(20) NOT NULL COMMENT 'Currently allocated blocks that have not been freed (COUNT_ALLOC minus COUNT_FREE).', `HIGH_COUNT_USED` bigint(20) NOT NULL COMMENT 'Highest number of allocated blocks (highest value of CURRENT_COUNT_USED).', `LOW_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Lowest number of bytes used.', `CURRENT_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Current number of bytes used (total allocated minus total freed).', `HIGH_NUMBER_OF_BYTES_USED` bigint(20) NOT NULL COMMENT 'Highest number of bytes used.' )
10.4 Enterprise	Not present.
10.4 Community	Not present.
10.3 Enterprise	Not present.
10.3 Community	Not present.
10.2 Enterprise	Not present.
10.2 Community	Not present.

EXTERNAL REFERENCES

Information specific to MariaDB SkySQL can be found on the memory_summary_by_host_by_event_name page in the SkySQL Documentation.