General-Purpose DB Instances

Updated on 2025-03-19 GMT+08:00

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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

Depending on service scenarios, the test results of RDS for MySQL 8.0 may be lower than those of RDS for MySQL 5.7, which is normal.

NOTICE:

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 = 1:2
vCPUs	Memory (GB)	Maximum Connections (Stress Testing)	TPS	QPS	IOPS
2	4	1,500	434	8,679	See About IOPS.
4	8	2,500	1,363	27,252
8	16	5,000	2,014	40,280

**Table 2** vCPU:Memory = 1:4
vCPUs	Memory (GB)	Maximum Connections (Stress Testing)	TPS	QPS	IOPS
2	8	2,500	645	12,899	See About IOPS.
4	16	5,000	1,428	28,554
8	32	10,000	2,422	48,445

Test Results

Figure 1 vCPU:Memory = 1:2

Figure 2 vCPU:Memory = 1:4

Parent topic: RDS for MySQL 8.0 Test Data

Previous topic: RDS for MySQL 8.0 Test Data

Next topic: Dedicated DB Instances

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