We often come across enticing VPS deals on various VPS review blogs and advertising channels, drawn in by the price and hardware specifications. When making a purchase, we should refer to user reviews and our own evaluation criteria. The most practical approach, once we have obtained or received a free trial machine, is to run through the following simple and practical VPS performance testing methods to see how the VPS product we are about to choose actually performs. If it falls within our acceptable standards, we proceed; if not, we pass.
1. CPU, Memory, and Disk Check
cat /proc/cpuinfo (View CPU info)cat /proc/meminfo (View memory info)df -lh (View disk info)
These commands let you check whether the VPS CPU information matches the official specifications, as sometimes what is advertised differs from what is actually detected.
2. Disk I/O Performance Test
dd if=/dev/zero of=test bs=64k count=4k oflag=dsyncdd if=/dev/zero of=test bs=8k count=256k conv=fdatasync
A detailed explanation of these commands and specific performance comparisons can be found in “VPS Performance Testing Tools Part 3: dd Disk Read/Write Commands.”
3. UnixBench Benchmark Test
A method for the UnixBench benchmark test is introduced in “VPS Performance Testing Tools Part 2: UnixBench.” You can judge performance based on your benchmark score. Generally, anything below 100 points is not worth considering; a typical acceptable score is usually around 400 points.
4. WGET Download Test
wget http://cachefly.cachefly.net/100mb.test
Test the download speed.
5. PING and TOP Test
Once we have the VPS IP address, we can use third-party PING tools to test the speed, or ping it from our local machine. This reflects the machine’s responsiveness. If we are building a Chinese-language website, a ping time within 250ms is generally acceptable. Some machines have high ping times, yet their page loading speed is still quite good. So,