VMS Help SET, CACHE, /RESET, Examples  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    1.$ SHOW MEMORY/CACHE
                    System Memory Resources on 22-AUG-2001 11:22:22.50

      Extended File Cache  (Time of last reset: 16-AUG-2001 11:16:24.96)
          Allocated (Mbytes)          151.39    Maximum size (Mbytes)        1024.00
          Free (Mbytes)                 0.21    Minimum size (Mbytes)           0.23
          In use (Mbytes)             151.18    Write hit rate                     0%
          Read hit rate                   97%   Write I/O count                 5321
          Read I/O count              208052    Write hit count                    0
          Read hit count              203761    Writes bypassing cache             0
          Reads bypassing cache         1787    Vols in Full XFC mode              0
          Files cached open              316    Vols in VIOC Compatible mode       1
          Files cached closed            300    Vols in No Caching mode            0
          Read/Write ratio                97%   Vols in Perm. No Caching mode      0

      This example shows the cache statistics prior to issuing the
      SET CACHE/RESET command.

        $ SET CACHE/RESET

      This command resets the cache statistics and updates the
      timestamp.

        $ SHOW MEMORY/CACHE
                      System Memory Resources on 22-AUG-2001 11:27:41.11

        Extended File Cache  (Time of last reset: 22-AUG-2001 11:27:37.76)
            Allocated (Mbytes)          151.39    Maximum size (Mbytes)        1024.00
            Free (Mbytes)                 0.21    Minimum size (Mbytes)           0.23
            In use (Mbytes)             151.18    Write hit rate                     0%
            Read hit rate                  100%   Write I/O count                    0
            Read I/O count                   9    Write hit count                    0
            Read hit count                   9    Writes bypassing cache             0
            Reads bypassing cache            0    Vols in Full XFC mode              0
            Files cached open              316    Vols in VIOC Compatible mode       1
            Files cached closed            300    Vols in No Caching mode            0
            Read/Write ratio               100%   Vols in Perm. No Caching mode      0

      This example shows the reset cache statistics and the modified
      timestamp.