![]() ![]() The output from top is divided into two sections. To start the top command you just type top at the command line: The most common is probably using the top command. There are several different ways to see the various CPU statistics. ![]() See our blog post Restricting process CPU usage using nice, cpulimit, and cgroups for more information on nice. By default processes on Linux are started with a niceness of 0. The niceness level ranges from -20 (most favorable scheduling) to 19 (least favorable). Niceness is a way to tweak the priority level of a process so that it runs less frequently. For example, user space programs can be categorized as those running under their initial priority level or those running with a nice priority. These three meta states can be further subdivided. Running the kernel, servicing interrupts or managing resources.Running a user space program, like a command shell, an email server, or a compiler.Idle, which means it has nothing to do.There are 3 general states your CPU can be in: You see the CPU metrics:īut what do all of those 2-letter abbreviations mean? The 3 CPU states Your Linux server is running slow, so you follow standard procedure and run top. ![]()
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