Help Center> Relational Database Service> Performance White Paper> RDS for MySQL> RDS for MySQL 5.7 Test Data> Dedicated DB Instances
Updated on 2022-10-31 GMT+08:00
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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

621

12,394

See About IOPS.

4

16

5,000

1,230

24,608

8

32

10,000

2,514

50,290

16

64

18,000

3,017

60,337

32

128

30,000

4,368

87,354

64

256

60,000

4,536

90,729
Table 2 vCPU:Memory = 1:8

vCPUs

Memory (GB)

Maximum Connections (Stress Testing)

TPS

QPS

IOPS

4

32

10,000

1,488

29,765

See About IOPS.

8

64

18,000

2,811

56,216

16

128

30,000

4,095

81,910

64

512

100,000

4,626

96,824

Test Results

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