Help Center/ Relational Database Service_RDS for PostgreSQL/ Performance White Paper/ RDS for PostgreSQL 17 Test Data/ Dedicated DB Instances
Updated on 2026-09-17 GMT+08:00
View PDF
Share

Dedicated DB Instances

This section provides test data of RDS for PostgreSQL 17 x86-based dedicated instances using cloud SSDs.

Test Data

Table 1 vCPU:Memory = 1:2

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

4

389.91

7,798.21

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

8

1,017.51

20,349.96

8

16

1,604.42

32,088.34

16

32

1,804.80

36,096.00
Table 2 vCPU:Memory = 1:4

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

8

453.77

9,075.32

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

996.02

19,920.39

8

32

1,862.91

37,258.32

16

64

2,644.80

52,896.57
Table 3 vCPU:Memory = 1:8

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

16

560.89

11,217.66

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

32

1,083.92

21,678.32

8

64

1,780.20

35,604.23

16

128

4,274.00

85,480.10

Test Results

Figure 1 vCPU:Memory = 1:2
Figure 2 vCPU:Memory = 1:4
Figure 3 vCPU:Memory = 1:8
Parent Topic: RDS for PostgreSQL 17 Test Data