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	519	10,385	See About IOPS.
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	See About IOPS.
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

Previous topic: General-Purpose DB Instances

Next topic: RDS for MySQL 5.7 Test Data

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