Help Center/ Relational Database Service_RDS for MySQL/ Performance White Paper/ RDS for MySQL 5.7 Test Data/ Dedicated DB Instances
Updated on 2025-10-21 GMT+08:00
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Dedicated DB Instances

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

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

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

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

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
Parent Topic: RDS for MySQL 5.7 Test Data