Dedicated DB Instances
About IOPS
The input/output operations per second (IOPS) supported by RDS for MySQL 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
![](https://support.huaweicloud.com/eu/pwp-rds/public_sys-resources/notice_3.0-en-us.png)
The Maximum Connections (Stress Testing) columns in the following tables indicate the results of the RDS performance stress testing. For running services on the live network, set the parameter max_connections.
vCPUs |
Memory (GB) |
Maximum Connections (Stress Testing) |
TPS |
QPS |
IOPS |
---|---|---|---|---|---|
2 |
8 |
2,500 |
621 |
12,394 |
See About IOPS. |
4 |
16 |
5,000 |
1,230 |
24,608 |
|
8 |
32 |
10,000 |
2,514 |
50,290 |
|
16 |
64 |
18,000 |
3,017 |
60,337 |
|
32 |
128 |
30,000 |
4,368 |
87,354 |
|
64 |
256 |
60,000 |
4,536 |
90,729 |
vCPUs |
Memory (GB) |
Maximum Connections (Stress Testing) |
TPS |
QPS |
IOPS |
---|---|---|---|---|---|
4 |
32 |
10,000 |
1,488 |
29,765 |
See About IOPS. |
8 |
64 |
18,000 |
2,811 |
56,216 |
|
16 |
128 |
30,000 |
4,095 |
81,910 |
|
64 |
512 |
100,000 |
4,626 |
96,824 |
Test Results
![](https://support.huaweicloud.com/eu/pwp-rds/en-us_image_0000001104613358.png)
![](https://support.huaweicloud.com/eu/pwp-rds/en-us_image_0000001357528497.png)
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