The first step for many people after getting a VPS is to install the panel and deploy the website. In fact, a more reasonable order is to do a performance check first. VPSCheck is a common server detection script that can quickly check hardware information and basic performance to help determine whether there is overbooking or configuration abnormalities.
1. Preparation
First, you need to log in to the server through SSH.
Windows users can use the terminal or SSH tool; Mac/Linux users can enter directly in the terminal:
ssh root@your server IP
Enter the password to log in.
2. Run the VPSCheck script
After successfully logging in, copy the one-click command provided by the official warehouse and run it (it is recommended to obtain the latest command from the official project page). After execution, the script will automatically start to detect, including: CPU model and core number, memory size, disk type (SSD/NVMe), disk I/O read and write speed, system information, and network basic testing. The entire process usually takes 2–5 minutes. No operations are required during this period, just wait for the results to be output.
3. How to view the test results
CPU information
Confirm whether the model is consistent with the merchant's promotion and whether the number of cores is correct.Memory capacity
Check whether it matches the purchase specifications.Disk I/O
This is the point. Normal SSDs are usually a few hundred MB/s, NVMe will be even higher. If it's as low as tens of MB/s, there may be node congestion or severe overbooking.Virtualization type
You can see whether it is KVM, OpenVZ or other architectures. KVM is usually more stable.Network test
The network results are affected by the test node and can only be used as a reference and do not represent stable speeds all day long.
4. Precautions
Do not test when the server is under high load or during the evening peak, otherwise the I/O performance will be affected.
Do not run the script multiple times in a row, the disk test itself will generate load.
It is normal for test results to fluctuate. Do not draw conclusions based on one low score.
5. Correct use of mentality
VPSCheck is not a running score competition tool, but a physical examination tool. Its function is to help you determine whether the machine is obviously abnormal. If the test results are generally normal, you can deploy the project with confidence. What really determines the experience is long-term stability, not a beautiful running score.
Before a new VPS goes online, running a test is a habit worth developing.