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Updated on 2024-06-06 GMT+08:00
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Dedicated 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 = 1:4

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

8

446.71

8,934.16

See About IOPS.

4

16

986.52

19,730.43

8

32

1,766.29

35,325.94

16

64

2,352.55

47,051.10

32

128

3,731.23

74,624.84

64

256

10,929.30

218,608.04
Table 2 vCPU:Memory = 1:8

vCPUs

Memory (GB)

TPS

QPS

IOPS

2

16

534.28

10,685.51

See About IOPS.

4

32

1,102.75

22,054.95

8

64

1,998.56

39,971.41

16

128

3,821.89

76,438.29

64

512

7,633.83

152,694.09

Test Results

Figure 1 vCPU:Memory = 1:4
Figure 2 vCPU:Memory = 1:8