Help Center/ Relational Database Service_RDS for PostgreSQL/ Performance White Paper/ RDS for PostgreSQL 16 Test Data/ General-Purpose DB Instances
Updated on 2026-09-17 GMT+08:00
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General-Purpose DB Instances

This section provides test data of RDS for PostgreSQL 16 x86-based general-purpose instances using cloud SSDs.

Test Data

Table 1 vCPU:Memory = 1:2

vCPUs

Memory (GB)

TPS

QPS

IOPS

1

2

190.94

3,818.96

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.

2

4

382.56

7,651.24

4

8

819.57

16,391.41

8

16

1,515.66

30,313.23
Table 2 vCPU:Memory = 1:4

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

8

431.24

8,624.79

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

942.27

18,845.35

8

32

1,818.37

36,367.47

Test Results

Figure 1 vCPU:Memory = 1:2
Figure 2 vCPU:Memory = 1:4
Parent Topic: RDS for PostgreSQL 16 Test Data