来自sys schema中其他一些视图的信息,如:sys.version、sys.processlist、sys.latest_file_io、sys.memory_by_host_by_current_bytes、sys.memory_by_thread_by_current_bytes、sys.memory_by_user_by_current_bytes、sys.memory_global_by_
| io_global_by_file_by_bytes | | io_global_by_file_by_latency | | io_global_by_wait_by_bytes | | io_global_by_wait_by_latency | | latest_file_io | | memory_by_host_by_current_bytes | | memory_by_thread_by_current_bytes | | memory_by_user_by_current_bytes | | memory_glo...
| memory_by_host_by_current_bytes | | memory_by_thread_by_current_bytes | | memory_by_user_by_current_bytes | | memory_global_by_current_bytes | | memory_global_total | | x$memory_by_host_by_current_bytes | | x$memory_by_thread_by_current_bytes | | x$memory_by_user_by_curren...
sys.x$io_by_thread_by_latency – IO等待, 按线程分组, 按总IO降序(total_latency) 内存: sys.x$memory_global_total --服务器总使用内存 memory_global_total显示更友好, 自带单位 sys.x$memory_global_by_current_bytes – 使用内存按事件分组 sys.x$memory_by_user_by_current_bytes – 使用内存按用...
和sys.x$memory_by_thread_by_current_bytes视图) 查询结果字段与processlist视图类似,但session视图过滤掉了后台线程,只显示与前台(用户)线程相关的统计数据。该视图在MySQL 5.7.9中是新增的。 下面是使用session视图查询的结果集。 #首先需要启用与等待事件相关的instruments和consumers,否则last_wait字段值可能为null...
来自sys schema中其他一些视图的信息,如:sys.version、sys.processlist、sys.latest_file_io、sys.memory_by_host_by_current_bytes、sys.memory_by_thread_by_current_bytes、sys.memory_by_user_by_current_bytes、sys.memory_global_by_current_bytes、sys.schema_object_overview、sys.metrics、sys.with_runtimes...
利用session表和memory_by_thread_by_current_bytes分配表进行关联查询。 SELECT b.USER, current_count_used, current_allocated, current_avg_alloc, current_max_alloc, total_allocated, current_statement FROM sys.memory_by_thread_by_current_bytes a, ...
sys.format_bytes(SUM(ibp.data_size)) AS data, COUNT(ibp.page_number) AS pages, COUNT(IF(ibp.is_hashed = 'YES', 1, NULL)) AS pages_hashed, COUNT(IF(ibp.is_old = 'YES', 1, NULL)) AS pages_old, ROUND(SUM(ibp.number_records)/COUNT(DISTINCT ibp.index_name)) AS rows_cached ...
来自sys schema中其他一些视图的信息,如:sys.version、sys.processlist、sys.latest_file_io、sys.memory_by_host_by_current_bytes、sys.memory_by_thread_by_current_bytes、sys.memory_by_user_by_current_bytes、sys.memory_global_by_current_bytes、sys.schema_object_overview、sys.metrics、sys.with_runtim...
数据来源:performance_schema的threads、events_waits_current、events_statements_current、events_stages_current 、events_transactions_current 、session_connect_attrs表和 sys 系统库的 x$memory_by_thread_by_current_bytess视图 这些视图列出了进程相关的较为详细的信息,比SHOW PROCESSLIST语句和INFORMATION_SCHEMA ...