Help Center/ Relational Database Service_RDS for PostgreSQL/ Performance White Paper/ RDS for PostgreSQL 17 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 17 x86-based general-purpose instances using cloud SSDs.

Test Data

Table 1 vCPU:Memory = 1:2

vCPUs

Memory (GB)

TPS

QPS

IOPS

1

2

196.42

3,928.48

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

384.96

7,699.21

4

8

821.46

16,429.29

8

16

1,508.43

30,168.55
Table 2 vCPU:Memory = 1:4

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

8

430.58

8,611.53

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

948.02

18,960.43

8

32

1,828.07

36,561.54

Test Results

Figure 1 vCPU:Memory = 1:2
Figure 2 vCPU:Memory = 1:4
Parent Topic: RDS for PostgreSQL 17 Test Data