How to test VPS performance of Linux system

1. Test the speed by testing the IP

Of course, when choosing a VPS, you must first conduct an IP test. Some hosting provider websites will publish the test IP. If not, you can contact customer service to obtain it. By testing IP, you can test ping values ​​and node connectivity around the world through third-party platforms, and you can also do MTR, route tracking, etc. locally. Although the test results are not completely accurate, they have certain effectiveness and can generally reflect the condition of the computer room lines. If not satisfied, renters can choose other options.

2. File download test

If you are satisfied with the IP test results, you can test the file download next. It is best if the computer room website provides a download link. If not, please consult customer service; the download test can truly reflect the line usage of the VPS. If you are already using a VPS, you can do a limit download test, which can accurately test the peak traffic and bandwidth limits. If you pass the test Use data to develop a VPS usage plan. Command:

wget 下载链接

3. CPU, memory, hard disk detection

The next step is to check the hardware information. This is most likely to contain moisture, which can be detected through the following command:

cat /proc/cpuinfo (查看CPU信息)
cat /proc/meminfo （查看内存信息）
df -lh （查看硬盘信息）

Sometimes, this command will show whether the CPU information of the VPS we purchased is consistent with the official standard, but sometimes what is displayed is not completely consistent with the actual test results.

4. Hard drive IO performance test

Then check the read performance of the hardware. Usually SATA hard drives are large and have low performance, while SSD solid state drives are very fast. After the test, the official data can be verified. Detection command:

dd if=/dev/zero of=test bs=64k count=4k oflag=dsyncdd if=/dev/zero of=test bs=8k count=256k conv=fdatasync

5, UB running score test

Finally, you can also use the VPS performance testing tool "UnixBench" to run the test, and test the performance based on your own running score. If it is lower than 100 points Ignoring it directly, it will generally be around 400 points.

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