General-Purpose DB Instances

This section provides test data of RDS for PostgreSQL 14 x86-based general-purpose instances using cloud SSDs.

About IOPS

The IOPS supported by RDS for PostgreSQL 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

**Table 1** vCPU:Memory = 1:2
vCPUs	Memory (GB)	TPS	QPS	IOPS
1	2	176.26	3,525.27	See About IOPS.
2	4	385.70	7,713.97
4	8	784.54	15,690.82
8	16	1,560.41	31,208.18

**Table 2** vCPU:Memory = 1:4
vCPUs	Memory (GB)	TPS	QPS	IOPS
2	8	429.02	8,580.42	See About IOPS.
4	16	999.26	19,985.14
8	32	1,788.29	35,765.97

Test Results

Figure 1 vCPU:Memory = 1:2

Figure 2 vCPU:Memory = 1:4

Parent topic: RDS for PostgreSQL 14 Test Data

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