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All uses of cloud servers
Cloud servers are used for a wide range of purposes, including website hosting, application deployment, data storage and backup, virtualization and containerization, big data processing, game servers, and development and testing environments. If you want to know more about cloud servers, you can read the articles below this topic.
How to set up swap on Linux cloud serverStep 1: Confirm the status of swap. Use the following command to check the memory status: free-m. If the result shows that swap is 0, it means that swap does not exist and you need to create swap. totalusedfreesharedbufferscachedMem:1840161422615361340-/+buffers/cache:2381602Swap:000 or you can use this command to view it. If no results are output, swap does not exist. swapon-s Step 2: Create swap We use the following command to create a swap file with a size of 2GB. ddif=/dev/zeroof=/
How to check CPU performance indicators of Linux cloud server through topWhen the server becomes slow and the load is high, you need to first check whether the CPU load is too high. If the CPU load is high, then check to see what processes are occupying the CPU resources. 1. CPU load: Check through the top command: mainly look at "loadaverage", which can be understood as indicating the average load in the previous 1, 5, and 15 minutes respectively. Generally, the number of CPUs with one core should not exceed 4. If it is a 4-core CPU, it should not exceed 16 (ie: number of CPU cores * 4). If it exceeds, it means that the load is high and there is an abnormality. Other parameters are explained as follows: us (usertime) indicates the time when the CPU executes the user process, including ni time. Usually we only look at this. sy (systemtime) indicates the CPU running time in the kernel, including IRQ and sof
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