Help Center/ Relational Database Service/ Performance White Paper/ RDS for PostgreSQL/ RDS for PostgreSQL 11 Test Data/ General-Purpose DB Instances
Updated on 2024-09-12 GMT+08:00
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General-Purpose DB Instances

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

159.52

3,190.46

See About IOPS.

2

4

359.01

7,180.25

4

8

791.86

15,837.19

8

16

1,565.28

31,305.68
Table 2 vCPU:Memory = 1:4

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

8

418.93

8,378.64

See About IOPS.

4

16

976.3

19,526.01

8

32

1,779.63

35,592.65

Test Results

Figure 1 vCPU:Memory = 1:2
Figure 2 vCPU:Memory = 1:4