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  1. Home
  2. NetBackup™ Backup Planning and Performance Tuning Guide
  3. Measuring Performance
  4. Evaluating system components
  5. Monitoring Linux/UNIX CPU load
NetBackup™ Backup Planning and Performance Tuning Guide

Monitoring Linux/UNIX CPU load

  1. Use the vmstat utility to monitor CPU usage.
  2. In the vmstat output: Add the us and sy CPU columns to get the total percentage of the CPU that is being used for user tasks and system tasks. Consistently non-zero wa indicates there are processes waiting for IO. You need to check the disk service time with iostat when seeing consistently high wa values.

Note:

The sar, mpstat, and top commands are useful tools for monitoring CPU usage

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Measuring performance with the GEN_DATA directive (Linux/UNIX)

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Monitoring Linux/UNIX memory use

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