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78 lines
2.5 KiB
Plaintext
78 lines
2.5 KiB
Plaintext
--source include/have_innodb.inc
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--source include/big_test.inc
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--source include/not_valgrind.inc
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--source include/not_embedded.inc
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--disable_warnings
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DROP TABLE if exists t1;
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--enable_warnings
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let $num_tables = 505;
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SET @start_table_definition_cache = @@global.table_definition_cache;
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SET @@global.table_definition_cache = 400;
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SET @start_flush_log_at_trx_commit = @@global.innodb_flush_log_at_trx_commit;
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SET @@global.innodb_flush_log_at_trx_commit=2;
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# set stats accuracy to be pretty high so stats sync is easily triggered.
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SET @start_innodb_defragment_stats_accuracy = @@global.innodb_defragment_stats_accuracy;
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SET @@global.innodb_defragment_stats_accuracy = 80;
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# Create table.
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CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b VARCHAR(256), KEY SECOND(a, b)) ENGINE=INNODB;
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# Populate data
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INSERT INTO t1 VALUES(1, REPEAT('A', 256));
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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INSERT INTO t1 (b) SELECT b from t1;
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select stat_value > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name = 'n_page_split';
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# Create many tables to over flow the table definition cache
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--echo Create $num_tables table to overflow the table cache.
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--disable_query_log
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let $count = $num_tables;
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while ($count)
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{
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EVAL CREATE TABLE t_$count (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT) ENGINE=INNODB;
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EVAL INSERT INTO t_$count VALUES (1), (2);
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dec $count;
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}
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--enable_query_log
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--echo Sleep for a while to make sure t1 is evicted.
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select sleep(15);
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--echo Reload t1 to get defrag stats from persistent storage
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INSERT INTO t1 (b) SELECT b from t1;
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--echo make sure the stats thread will wake up and do the write even if there's a race condition between set and reset.
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select sleep(15);
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select stat_value > 0 from mysql.innodb_index_stats where table_name like '%t1%' and stat_name = 'n_page_split';
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# Clean up
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SET @@global.innodb_defragment_stats_accuracy = @start_innodb_defragment_stats_accuracy;
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SET @@global.table_definition_cache = @start_table_definition_cache;
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--disable_query_log
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let $count = $num_tables;
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while ($count)
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{
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EVAL DROP TABLE t_$count;
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dec $count;
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}
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set @@global.innodb_flush_log_at_trx_commit = @start_flush_log_at_trx_commit;
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--enable_query_log
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DROP TABLE t1;
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