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    The PATROL Knowledge Module for UNIX and Linux monitors and manages memory through two applications: MEMORY and SWAP.

    1. The MEMORY application monitors such memory activity as
      • Number of active virtual pages
      • Number of pages anticipated
      • Number of pages freed per second
      • Number of pages in and out per second
      • Number of pages scanned per second
    2. The MEMORY application reports detailed memory utilization.
    3. The MEMORY application also manages shared-memory segments and semaphores.
    4. The SWAP application monitors virtual memory. It provides the following information for the entire system and for each swap area.
      • Amount of disk space reserved for swap
      • Amount of swap space used
      • Percentage of swap space used

    The following sections appear in this topic:

     

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