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	647	12,936	See About IOPS.
4	16	5,000	1,556	31,117
8	32	10,000	2,543	50,867
16	64	18,000	4,006	80,115
32	128	30,000	5,979	119,575
64	256	60,000	6,463	129,261

**Table 2** vCPU:Memory = 1:8
vCPUs	Memory (GB)	Maximum Connections (Stress Testing)	TPS	QPS	IOPS
4	32	10,000	1,642	32,849	See About IOPS.
8	64	18,000	3,102	62,045
16	128	30,000	5,467	109,349
64	512	100,000	6,484	129,684

Test Results

Figure 1 vCPU:Memory = 1:4

Figure 2 vCPU:Memory = 1:8

Parent topic: RDS for MySQL 8.0 Test Data

Previous topic: General-Purpose DB Instances

Next topic: RDS for PostgreSQL

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