Updated on 2022-09-22 GMT+08:00

Dedicated DB Instances

About IOPS

The input/output operations per second (IOPS) supported by RDS for MySQL depends on the I/O performance of Elastic Volume Service (EVS) disks. For details, see Disk Types and Performance in the Elastic Volume Service Service Overview.

Test Data

The Maximum Connections (Stress Testing) columns in the following tables indicate the results of the RDS performance stress testing. For running services on the live network, set the parameter max_connections.

Table 1 vCPU:Memory = 1:4

vCPUs

Memory (GB)

Maximum Connections (Stress Testing)

TPS

QPS

IOPS

2

8

2,500

590

11,804

See About IOPS.

4

16

5,000

1,357

27,159

8

32

10,000

2,364

47,302

16

64

18,000

2,876

57,531

32

128

30,000

4,328

86,584

64

256

60,000

4,646

90,754

Table 2 vCPU:Memory = 1:8

vCPUs

Memory (GB)

Maximum Connections (Stress Testing)

TPS

QPS

IOPS

4

32

10,000

1,435

28,701

See About IOPS.

8

64

18,000

2,503

50,061

16

128

30,000

4,060

81,210

64

512

100,000

4,710

99,932

Test Results

Figure 1 vCPU:Memory = 1:4
Figure 2 vCPU:Memory = 1:8