MySQL performance tuning primer script一个简单好用的mysql优化工具,其实一个shell脚本 下载: $ wget http://www.day32.com/MySQL/tuning-primer.sh 运行 $ sh tuning-primer.sh all 运行以后会询问mysql用户名好密码最好提供mysql的,还会询问是否在当家目录自动生成.my.cnf配置文件这里保存你的mysql用户名和密码一般选择N. 它主要通过查询mysql中的variab…

Table of Contents Analyze MySQL PerformanceTuningSlow queries and Slowlog Brought to you by Rick James Analyze MySQL Performance When asked to analyze the performance of a MySQL server, there are two main tasks (tuning and slowlog) I like to start wi…

With MySQL, common configuration mistakes can cause serious performance problems. In fact, if you mis-configure just one of the many config parameters, it can cripple performance! (see examples) Of course, the performance of MySQL is often tied great…

vNS12 MySQL Performance vNS12(192.168.195.91): 2vCPU + 2GBMemMySQL1(192.168.185.73): 2vCPU + 1GBMemMySQL2(192.168.185.75): 2vCPU + 1GBMemLinuxClient(192.168.195.71): 2vCPU + 1GBMem MySQL2(192.168.185.75:3306) Performance: [root@lsgxeva ~]# sysbench /…

mysql performance storage engine 概要 mysql的运行时状态记录的存储引擎,实现了PSI(Performance Storage Interface) 通过WITH_PERFSCHEMA_STORAGE_ENGINE宏来决定是否编译,启用后会自动启用HAVE_PSI_INTERFACE, 该宏会影响mysql_thread_create的行为 启动过程 # sql/mysqld.cc:mysqld_main # 在sql/sys_vars中声明所有的mysql参…

https://www.mysql.com/why-mysql/performance/ https://www.slideshare.net/oysteing/how-to-analyze-and-tune-mysql-queries-for-better-performance-75441170 https://www.slideshare.net/oysteing/how-to-analyze-and-tune-sql-queries-for-better-performance http…

MySQL的performance schema 用于监控MySQL server在一个较低级别的运行过程中的资源消耗.资源等待等情况. 1 performance schema特点 提供了一种在数据库运行时实时检查server的内部执行情况的方法.performance_schema 数据库中的表使用performance_schema存储引擎.该数据库主要关注数据库运行过程中的性能相关的数据,与information_schema不同,information_schema主要关注server…

介绍 zabbix监控mysql性能,使用zabbix自带的mysql监控模板,可以监控以下内容OPS(增删改查).mysql慢查询数量.mysql请求\响应流量带宽 配置 新建mysql监控用户 GRANT SUPER, REPLICATION CLIENT ON *.* TO '  新建.my.cnf文件 vim zabbix-agent/etc/.my.cnf [mysql] host=localhost user=zabbix_check password= socket=/tmp/my…

1.表级锁状态 mysql> show status like 'table%'; +----------------------------+-----------+ | Variable_name              | Value     | +----------------------------+-----------+ | Table_locks_immediate      | 139306577 |     | Table_locks_waited         | 0…

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