oracle 11g 存储IO性能压测方式

Oracle 11g 提供了IO压测工具DBMS_RESOURCE_MANAGER.CALIBRATE_IO PL/SQL 存储过程，可以用于测试存储IO性能(IOPS、IO延迟、IO吞吐量)

   存储过程参数如下:

DBMS_RESOURCE_MANAGER.CALIBRATE_IO (
   num_physical_disks      IN  PLS_INTEGER DEFAULT 1,
   max_latency             IN  PLS_INTEGER DEFAULT 20,
   max_iops                OUT PLS_INTEGER,
   max_mbps                OUT PLS_INTEGER,
   actual_latency          OUT PLS_INTEGER); 

SQL> SET SERVEROUTPUT ON
DECLARE
lat INTEGER;
iops INTEGER;
mbps INTEGER;
BEGIN
-- DBMS_RESOURCE_MANAGER.CALIBRATE_IO (<DISKS>, <MAX_LATENCY>, iops, mbps, lat);
DBMS_RESOURCE_MANAGER.CALIBRATE_IO (24, 10, iops, mbps, lat);

DBMS_OUTPUT.PUT_LINE ('maSQL> 2 3 4 5 6 7 8 9 x_iops = ' || iops);
DBMS_OUTPUT.PUT_LINE ('latency = ' || lat);
DBMS_OUTPUT.PUT_LINE ('max_mbps = ' || mbps);
end;
/ 10 11 12 13
max_iops = 8845
latency = 8
max_mbps = 1141

PL/SQL procedure successfully completed.

也可以通过查询视图获取压测的IO性能数据:

select * from dba_rsrc_io_calibrate