…MySQL 5.5 with addition of user variables, stored procedures, prepared statements…cache reduces memory consumption to be withing the reason. Connection Related Allocations Another set of buffers correspond to connections – orphaned prepared statements… +——————————-+ 1 row in set (0…
Post: New SpecJAppServer results at MySQL and Sun.
November 12, 2008 By Leave a Comment
…Server prepared statements were disabled for the run (same as we had few years ago). Prepared statements generally…disable them. The MySQL Settings are probably what is the most interesting: MySQL 5.0 Tuning in /etc/…it will likely be faster. query_cache_size = 0M – query cache disabled. Not a big …
Post: Top 5 Wishes for MySQL
June 29, 2007 By 10 Comments
… saying about Prepared Statements in MySQL 4.1 which came without query cache support but even worse not all of statements could be prepared not to… were released in MySQL 5.0 without consistent work with MySQL close Partner – Innobase to ensure Group Commit still works in 5.0 and so we… for very long time. For example Query Cache support for Prepared Statements is only fixed in MySQL 5.1 and Most of other items are…
Post: Updated msl (microslow) patch, installation walk-through!
April 20, 2008 By 17 Comments
… file sql/slave.cc patching file sql/sql_cache.cc patching file sql/sql_class.cc patching…The sources have been prepared for compilation, so you are ready to run it: (garfield:~/work/mysql-5.0.51a) % make … SET GLOBAL. log_slow_rate_limit=# Rate limit statement writes to slow log to only those from …
Post: How Percona does a MySQL Performance Audit
November 24, 2008 By 17 Comments
…5 5 iostat -dx 5 5…mysql –user=mysql –pid-file=/var/run/mysqld/mysqld.pid –skip-external-locking –port=3306 –socket=/var/db/mysql/mysql.sock consult 28852 26909 0… 6 | | Aborted_connects | 29 | 0 | | Binlog_cache_disk_use | 0 | 0 | | Binlog_cache_use | 9630066 | 468 |…it. Preparing … statements and…
Post: The performance effects of new patches
September 9, 2008 By 14 Comments
… no keying time), it uses MySQL C API and the server side prepared statement. The server has 8core CPU…data cache of the storage. main common settings innodb_buffer_pool_size = 2048M innodb_thread_concurrency = 0 …comment from InnoDB code /* If there were less than 5 i/os during the one second sleep, …
