Help Center/ Relational Database Service_RDS for MySQL/ Performance White Paper/ RDS for MySQL 5.6 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

519

10,385

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

1,192

23,840

8

32

10,000

2,698

53,960

16

64

18,000

3,149

62,975

32

128

30,000

4,385

87,706

64

256

60,000

4,811

95,118
Table 2 vCPU:Memory = 1:8

vCPUs

Memory (GB)

Maximum Connections (Stress Testing)

TPS

QPS

IOPS

4

32

10,000

1,374

27,480

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

2,825

56,493

16

128

30,000

4,215

84,302

64

512

100,000

4,839

96,771

Test Results

Figure 1 vCPU:Memory = 1:4
Figure 2 vCPU:Memory = 1:8
Parent Topic: RDS for MySQL 5.6 Test Data