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1c6f78e337
Backporting the WL#5716, "Information schema table for InnoDB buffer pool information". Backporting revisions 2876.244.113, 2876.244.102 from mysql-trunk. rb://1177 approved by Jimmy Yang.
131 lines
6.7 KiB
Plaintext
131 lines
6.7 KiB
Plaintext
SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
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SELECT count(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_POOL_STATS;
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SELECT * FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE;
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CREATE TABLE infoschema_buffer_test (col1 INT) ENGINE = INNODB;
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INSERT INTO infoschema_buffer_test VALUES(9);
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SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
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FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
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WHERE TABLE_NAME like "%infoschema_buffer_test"
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and PAGE_STATE="file_page" and PAGE_TYPE="index";
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TABLE_NAME INDEX_NAME NUMBER_RECORDS DATA_SIZE PAGE_STATE PAGE_TYPE
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test/infoschema_buffer_test GEN_CLUST_INDEX 1 29 FILE_PAGE INDEX
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INSERT INTO infoschema_buffer_test VALUES(19);
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SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
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FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
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WHERE TABLE_NAME like "%infoschema_buffer_test"
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and PAGE_STATE="file_page" and PAGE_TYPE="index";
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TABLE_NAME INDEX_NAME NUMBER_RECORDS DATA_SIZE PAGE_STATE PAGE_TYPE
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test/infoschema_buffer_test GEN_CLUST_INDEX 2 58 FILE_PAGE INDEX
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CREATE INDEX idx ON infoschema_buffer_test(col1);
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SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
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FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
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WHERE TABLE_NAME like "%infoschema_buffer_test"
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and PAGE_STATE="file_page" and INDEX_NAME = "idx" and PAGE_TYPE="index";
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TABLE_NAME INDEX_NAME NUMBER_RECORDS DATA_SIZE PAGE_STATE PAGE_TYPE
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test/infoschema_buffer_test idx 2 32 FILE_PAGE INDEX
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DROP TABLE infoschema_buffer_test;
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SELECT TABLE_NAME, INDEX_NAME, NUMBER_RECORDS, DATA_SIZE, PAGE_STATE, PAGE_TYPE
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FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
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WHERE TABLE_NAME like "%infoschema_buffer_test";
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TABLE_NAME INDEX_NAME NUMBER_RECORDS DATA_SIZE PAGE_STATE PAGE_TYPE
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CREATE TABLE infoschema_parent (id INT NOT NULL, PRIMARY KEY (id))
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ENGINE=INNODB;
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CREATE TABLE infoschema_child (id INT, parent_id INT, INDEX par_ind (parent_id),
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FOREIGN KEY (parent_id)
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REFERENCES infoschema_parent(id)
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ON DELETE CASCADE)
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ENGINE=INNODB;
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SELECT count(*)
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FROM INFORMATION_SCHEMA.INNODB_BUFFER_PAGE
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WHERE TABLE_NAME like "%infoschema_child" and PAGE_STATE="file_page"
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and PAGE_TYPE="index";
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count(*)
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2
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DROP TABLE infoschema_child;
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DROP TABLE infoschema_parent;
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show create table information_schema.innodb_buffer_page;
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Table Create Table
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INNODB_BUFFER_PAGE CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE` (
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`POOL_ID` bigint(21) unsigned NOT NULL DEFAULT '0',
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`BLOCK_ID` bigint(21) unsigned NOT NULL DEFAULT '0',
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`SPACE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGE_NUMBER` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGE_TYPE` varchar(64) DEFAULT NULL,
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`FLUSH_TYPE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`FIX_COUNT` bigint(21) unsigned NOT NULL DEFAULT '0',
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`IS_HASHED` varchar(3) DEFAULT NULL,
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`NEWEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
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`OLDEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
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`ACCESS_TIME` bigint(21) unsigned NOT NULL DEFAULT '0',
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`TABLE_NAME` varchar(1024) DEFAULT NULL,
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`INDEX_NAME` varchar(1024) DEFAULT NULL,
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`NUMBER_RECORDS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`DATA_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`COMPRESSED_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGE_STATE` varchar(64) DEFAULT NULL,
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`IO_FIX` varchar(64) DEFAULT NULL,
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`IS_OLD` varchar(3) DEFAULT NULL,
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`FREE_PAGE_CLOCK` bigint(21) unsigned NOT NULL DEFAULT '0'
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) ENGINE=MEMORY DEFAULT CHARSET=utf8
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show create table information_schema.innodb_buffer_page_lru;
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Table Create Table
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INNODB_BUFFER_PAGE_LRU CREATE TEMPORARY TABLE `INNODB_BUFFER_PAGE_LRU` (
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`POOL_ID` bigint(21) unsigned NOT NULL DEFAULT '0',
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`LRU_POSITION` bigint(21) unsigned NOT NULL DEFAULT '0',
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`SPACE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGE_NUMBER` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGE_TYPE` varchar(64) DEFAULT NULL,
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`FLUSH_TYPE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`FIX_COUNT` bigint(21) unsigned NOT NULL DEFAULT '0',
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`IS_HASHED` varchar(3) DEFAULT NULL,
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`NEWEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
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`OLDEST_MODIFICATION` bigint(21) unsigned NOT NULL DEFAULT '0',
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`ACCESS_TIME` bigint(21) unsigned NOT NULL DEFAULT '0',
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`TABLE_NAME` varchar(1024) DEFAULT NULL,
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`INDEX_NAME` varchar(1024) DEFAULT NULL,
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`NUMBER_RECORDS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`DATA_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`COMPRESSED_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`COMPRESSED` varchar(3) DEFAULT NULL,
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`IO_FIX` varchar(64) DEFAULT NULL,
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`IS_OLD` varchar(3) DEFAULT NULL,
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`FREE_PAGE_CLOCK` bigint(21) unsigned NOT NULL DEFAULT '0'
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) ENGINE=MEMORY DEFAULT CHARSET=utf8
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show create table information_schema.innodb_buffer_pool_stats;
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Table Create Table
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INNODB_BUFFER_POOL_STATS CREATE TEMPORARY TABLE `INNODB_BUFFER_POOL_STATS` (
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`POOL_ID` bigint(21) unsigned NOT NULL DEFAULT '0',
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`POOL_SIZE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`FREE_BUFFERS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
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`OLD_DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
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`MODIFIED_DATABASE_PAGES` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PENDING_DECOMPRESS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PENDING_READS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PENDING_FLUSH_LRU` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PENDING_FLUSH_LIST` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGES_MADE_YOUNG` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGES_NOT_MADE_YOUNG` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGES_MADE_YOUNG_RATE` double NOT NULL DEFAULT '0',
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`PAGES_MADE_NOT_YOUNG_RATE` double NOT NULL DEFAULT '0',
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`NUMBER_PAGES_READ` bigint(21) unsigned NOT NULL DEFAULT '0',
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`NUMBER_PAGES_CREATED` bigint(21) unsigned NOT NULL DEFAULT '0',
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`NUMBER_PAGES_WRITTEN` bigint(21) unsigned NOT NULL DEFAULT '0',
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`PAGES_READ_RATE` double NOT NULL DEFAULT '0',
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`PAGES_CREATE_RATE` double NOT NULL DEFAULT '0',
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`PAGES_WRITTEN_RATE` double NOT NULL DEFAULT '0',
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`NUMBER_PAGES_GET` bigint(21) unsigned NOT NULL DEFAULT '0',
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`HIT_RATE` bigint(21) unsigned NOT NULL DEFAULT '0',
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`YOUNG_MAKE_PER_THOUSAND_GETS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`NOT_YOUNG_MAKE_PER_THOUSAND_GETS` bigint(21) unsigned NOT NULL DEFAULT '0',
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`NUMBER_PAGES_READ_AHEAD` bigint(21) unsigned NOT NULL DEFAULT '0',
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`NUMBER_READ_AHEAD_EVICTED` bigint(21) unsigned NOT NULL DEFAULT '0',
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`READ_AHEAD_RATE` double NOT NULL DEFAULT '0',
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`READ_AHEAD_EVICTED_RATE` double NOT NULL DEFAULT '0',
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`LRU_IO_TOTAL` bigint(21) unsigned NOT NULL DEFAULT '0',
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`LRU_IO_CURRENT` bigint(21) unsigned NOT NULL DEFAULT '0',
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`UNCOMPRESS_TOTAL` bigint(21) unsigned NOT NULL DEFAULT '0',
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`UNCOMPRESS_CURRENT` bigint(21) unsigned NOT NULL DEFAULT '0'
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) ENGINE=MEMORY DEFAULT CHARSET=utf8
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