8.11 Viewing the PIDs or Monitoring the Health of Processes

To view process information, click Manage Linux > View Process Information. On the Process Information page, you can view a list of active processes. Table 8-4 describes the health information that is reported for each process:

Table 8-4 Process Health Information

Parameter

Description

Process Information

Shows an Information icon. Click the Information icon next to the process name to monitor or kill an individual process.

Name

Shows the process or executable program name.

Owner

Shows the process owner (the user who started the process).

ID (Status)

Shows the process ID (PID) of the task and the current state of the task. The states are Sleep (S), Running (R), Traced (T), or Zombied (Z). These states are modified by a trailing character as follows:

  • < indicates a process with a negative nice value.

  • N indicates a process with a positive nice value.

  • W indicates a swapped-out process for non-kernel processes.

CPU Usage %

Shows the task’s share of the CPU time since the last screen update, expressed as a percentage of total CPU time per processor.

Priority

Shows the priority of the task.

Run Time

Shows the total CPU time that the task has used since it started.

Physical Memory (%)

Shows the amount of physical memory in bytes that the task is using, and the percentage of RAM memory that this represents. The Linux top command reports this information in kilobytes.

Virtual Memory

Shows the amount of virtual memory in bytes that the task is using to hold the code, data, and stack space memory. This is the value reported by the Linux top command’s RSS switch. The Linux top command reports this information in kilobytes.