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 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…

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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