查询SQL启动以来数据库的IO读写情况

脚本：

SELECT  db.name AS 数据库,

        f.fileid AS 文件Id,
        f.filename AS 文件路径,
        i.num_of_reads AS 读取次数,
        i.num_of_bytes_read 读取总字节数,
        i.io_stall_read_ms '等待读取时间(毫秒)',
        i.num_of_writes AS 写入次数,
        i.num_of_bytes_written AS 写入总字节数,
        i.io_stall_write_ms AS '等待写入时间(毫秒)',
        i.io_stall AS 等待IO完成总时间,
        i.size_on_disk_bytes 磁盘占用字节数
FROM    sys.databases db
        INNER JOIN sys.sysaltfiles f ON db.database_id = f.dbid

        INNER JOIN sys.dm_io_virtual_file_stats(NULL,NULL) i ON i.database_id = f.dbid AND i.file_id = f.fileid;

结果：