服务器环境:32核心,64GB内存,1.5T机械硬盘,关闭swap
数据库:MySQL5.7 ,某表数据1千万+,压测目标800QPS
找了大神优化SQL,单条执行0.2秒,但是压测过程中,CPU占用高达2700%,慢SQL日志前期没有,中后期出现很多4~10秒,但SQL单独执行没问题很快,下面是数据库配置文件部分参数:
max_connections = 3000
max_connect_errors = 1000
join_buffer_size = 512M
tmp_table_size = 512M
read_buffer_size = 16M
read_rnd_buffer_size = 32M
sort_buffer_size = 32M
innodb_page_size = 16384
innodb_buffer_pool_size = 45G
innodb_log_file_size = 512M
innodb_log_buffer_size = 16777216
innodb_thread_concurrency = 64
望各路大神帮忙解决,小弟感激不尽!!!