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Lund Performance Solutions


SOS Main Option Menu
The SOS/3000 Main Option Menu screen contains a set (and several subsets) of options that enable the user to configure the SOS program.

To access the SOS/3000 Main Option Menu screen, enter O from any SOS display screen.


Figure 6.1 SOS/3000 Main Option Menu screen

Main Option Commands

To modify a main option, either temporarily or permanently:
  • Type the option command key from the SOS/3000 Main Option Menu screen and press Enter.
  • Enter a new parameter at the secondary command prompt. Press Enter.
  • Press Enter again to exit the SOS Main Option Menu screen, or press F8.
  • At the "Should these options be saved permanently?" prompt:
  • Press Enter to return to the SOS program without saving the modifications permanently.
  • Enter Y (Yes) to save the changes permanently.
  • Information about each of the main options is provided to assist you.

    Screen refresh interval in seconds

    The SOS banner shows the length of the current interval (I: mm:ss) in minutes (mm) and seconds (ss). In the following example, the banner indicates the measurements reported in the screen are updated every minute (60 seconds). The banner is always displayed and cannot be suppressed.


    Figure 6.2 SOS banner: current interval (I: 01:00)
    Setting the Length of the Interval
    The SOS program refreshes (updates) the performance measurement data every 60 seconds. This default can be changed to an interval ranging from 10 to 3600 seconds.

    IMPORTANT SOS runs at a very high priority. Setting a short refresh interval or updating the screen too frequently may burden the system and result in skewed performance measurements. The default setting of 60 seconds is recommended for most systems.

    To adjust the length of the interval:
  • From the SOS/3000 Main Option Menu screen, select the Screen refresh interval in seconds option (option 1). Press Enter.
  • At the next prompt, enter a positive integer from 10 to 3600 (seconds). Press Enter.
  • Display Key Indicators of Performance

    The Key Indicators of Performance (KIP) line can be displayed immediately below the SOS banner in all SOS screens.

     
     
    KIP Line
     
     

    Figure 6.3 SOS Key Indicators of Performance (KIP) line
    The configuration of the KIP line is discussed in "Key Indicators of Performance (KIP) Line".
    Displaying Key Indicators of Performance
    By default, the key indicators of performance are suppressed. To show the key indicators of performance (KIP) line in all screen displays:
  • From the SOS/3000 Main Option Menu screen, select the Display Key Indicators of Performance option (option 2). Press Enter.
  • At the next prompt, enter Y (Yes).
  • Display advice messages

    System Performance Advice messages displayed in the Global Summary screen deliver a basic interpretation of significant system performance events. By default, this option is turned on.


    Figure 6.4 SOS Global Summary screen: System Performance Advice messages
    Advice messages are discussed further in "System Performance Advice".
    Suppressing All Advice Messages
    To suppress all advice messages in the Global Summary screen:
  • From the Main Option Menu screen, select the Display advice messages option (option 3). Press Enter.
  • At the next prompt, enter N (No).
  • Display informational advice messages

    By default, SOS provides both informational and excessive use advice messages in the System Performance Advice section of the Global Summary screen. See "Performance Advice Message Catalog" for details regarding these message codes.
  • An "I" in the message ID code (for example, GI01) denotes an informational advice message. Informational messages usually state current performance levels for the current interval.
  • An "E" in the message ID code (for example, GE09) denotes an excessive use advice message. This type of advice message alerts the user to a situation where system resources are overtaxed.
  • Suppressing Informational Advice Messages
    To suppress informational advice messages from the Global Summary screen:
  • From the SOS/3000 Main Option Menu screen, select the Display informational advice messages option (option 4). Press Enter.
  • This option is available only when advice messages (option 3) are displayed in the SOS/ 3000 Main Option Menu screen.
  • At the next prompt, enter N (No).
  • Display option

    The Display option determines how the Global Statistics portion of the Global Summary screen is formatted. See "SOS Main Option Menu" for more information. The Global Statistic can be displayed in a reduced graphic format (default), a detailed tabular format, or can be suppressed entirely. By choosing (1) Graphic, you will see eight important global performance statistics in a graphic bar chart format. By choosing (2) Tabular, data will present a detailed listing with cumulative values of essential performance data in a tabular abbreviated format. This option should be enabled when more specific, detailed information is desired for global performance statistics. Selecting (3) Suppress, will skip the display of CPU information. Choose this option when you want to conserve screen space for process, workload, and/or advice display.
    Changing Display Formats
    To choose one of the Global Statistics display formats:
  • From the SOS/3000 Main Option Menu screen, select Display option (option 5). Press Enter.
  • Enter the option number:
  • To view a graphical display, type 1 (1-Graphic). Press Enter.
  • To view a tabular display, type 2 (2-Tabular). Press Enter.
  • To skip displaying the CPU information, type 3 (3-Suppress). Press Enter.
  • Display memory information on global screen

    This option allows you to enable the Global Memory Statistics section on the Global Screen. This option is only available if option 5 (Display option) is set to 2 (Graphic) or 3 (Tabular).


    Figure 6.5 SOS Global Summary screen: Memory statistics
    Suppressing memory information on global screen
    To suppress memory information from the Global Summary screen:
  • From the SOS/3000 Main Option Menu screen, select the Display memory information on global screen option (option 6).
  • At the next prompt, enter N (No).
  • Display disc information on global screen

    This option allows you to enable the Global Disc Statistics section on the Global Summary screen. This option is only available if option 5 (Display option) is set to 2 (Graphic) or 3 (Tabular).


    Figure 6.6 SOS Global Summary screen: Disc statistics
    Global disc statistics are discussed further in "Global Disc Statistics (tabular format)".
    Suppressing disc information on global screen
    To suppress disc information from the Global Summary screen:
  • From the SOS/3000 Main Option Menu screen, select the Display disc information on global screen option (option 7).
  • At the next prompt, enter N (No).
  • Collect process/workload information

    This option allows you to enable the data collection process by SOS of process level and workload level performance statistics.
    Enabling process/workload data collection
    To enable process/workload data collection:
  • From the SOS/3000 Main Option Menu screen, select Collect process/workload information (option 8).
  • At the next prompt, enter Y (Yes).
  • Display process information

    Process information is provided in the Process Information section of the Global Summary screen.This information can be suppressed. This option is only available if option 8 (Collect process/workload information) is set to Y.


    Figure 6.7 SOS Global Summary screen: Process Information
    Global process statistics are discussed further in "Process Information".
    Suppressing Process Information
    To suppress the Process Information section of the Global Summary screen:
  • From the SOS/3000 Main Option Menu screen, select Display process information (option 9). Press Enter.
  • At the next prompt, enter N (No).

  • NOTE If you suppress the collection of Process Information, the associated process level advice messages will not be present. You do not need this option enabled to display application workload summaries.

    Display workload information

    By default, information about application workloads is not included in the Global Summary screen graphical display. This information can be displayed. This option is only available if option 8 (Collect process/workload information) is set to Y.


    Figure 6.8 SOS Global Summary screen: Process Summary by Application Workloads
    Workload statistics are discussed further in "Process Summary by Application Workloads".
    Displaying Workload Information
    To display workload information:
  • From the SOS/3000 Main Option Menu screen, select Display workload information (option 10). Press Enter.
  • At the next prompt, enter Y (Yes).
  • Display only active workloads

    The Display only active workloads option is available only when options 8 and 10 are set to Y in the SOS/3000 Main Option Menu screen.

    By default, all workloads defined in the SOSWKDEF (workload definitions) file are included in the Process Summary by Application Workloads section of the Global Summary screen, even if they used 0.0% of the total CPU time in the current sample interval. The display can be configured to show only active workloads (workloads that used more than 0.0% of the total CPU time).
    Displaying Only Active Workloads
    To display active workloads and suppress inactive workloads in the Global Summary screen:
  • From the SOS/3000 Main Option Menu screen, select Display only active workloads (option 11). Press Enter.
  • At the next prompt, enter Y (Yes).
  • CPU percentage required for workload display

    This option is available only when workload information is displayed in the Global Summary screen and eligibility is restricted to active workloads.
    When this option is disabled (default setting), all workloads that consumed 0.1% or more of the total CPU time in the current sample interval will be included in the Process Summary by Application Workloads section of the Global Summary screen. A higher minimum CPU percentage can be specified.
    Resetting the Minimum CPU Requirement
    To set a new minimum CPU percentage requirement:
  • From the SOS/3000 Main Option Menu screen, select CPU percentage required for workload display (option 12). Press Enter.
  • At the next prompt, enter a value from 0.0 to 100 percent. Press Enter.
  • Terminal memory lock for process display

    One of the design philosophies of SOS/3000 is to provide as much relevant performance data on one screen as possible. Consequently, the default Global Summary screen allows Global, Disc, Process and Advice data to coexist on one screen. You can accomplish this by causing Process and Advice data to scroll under the Global and Disc data via the memory lock function on Hewlett- Packard and compatible terminals.
    Suppressing terminal memory lock for process display
    If you want to look at as many process as possible on one screen, even though it causes Global and Disc data to roll off the top of the display:
  • From the SOS Main option menu screen, select Terminal memory lock for process display (option 13). Press Enter.
  • At the next prompt, enter N (No).
  • Company name

    By default, the company name is not included in the SOS screens, reports or output. It can be added.
    Adding a Company Name to the SOS Banner
  • From the SOS/3000 Main Option Menu screen, select Company name (option 14). Press Enter.
  • At the next prompt, type a company name or system name (up to 43 alpha-numeric characters) to display just below the SOS banner.


  • Figure 6.9 SOS Company Name example (Lund Performance Solutions)

    Detail display options (SUBMENU)

    To access the Detail display options submenu screen:
  • From the SOS/3000 Main Option Menu screen, type 15 to select Detail display options (SUBMENU). Press Enter.
  • Select one of the following submenu options:
  • 1) Process display options (SUBMENU)
  • 2) Pulse Points display options (SUBMENU)
  • See "SOS Detail Display Options Menu" for more detailed information regarding this submenu.

    Make TurboIMAGE performance data available

    Two options have been added to the SOS/3000 Main Option Menu (see Figure 6.1 - option 16 and option 17) to display the TurboIMAGE performance statistics. By default, these options are set to N (No).
    In order for the ImageStats data to be collected and shown, this option must be set to Y (Yes).
    Displaying TurboIMAGE performance data
    To display Turbo Image performance data in any SOS-TurboIMAGE screen:
  • From the SOS/3000 Main Option Menu screen, select Make Turbo Image performance data available (option 16).
  • At the next prompt, enter Y (Yes).
  • Make TurboIMAGE detailed performance data available

    In order to see detailed performance data—data about process access to data sets, this option must be set to Y (Yes). Be careful about enabling this option. It consumes memory and CPU in proportion to the number of process-dataset combinations—this could be a very large number. This option is only available if option 16 is also set to Y.

    This option has a direct influence on the Turbo Image Database Detail screen and on the Turbo Image Process Detail screen.
    If this option is set to N (No), in the Turbo Image Database Detail screen will not display Hog dataset information, and the Turbo Image Process Detail screen will not contain dataset information. For more details, see "SOS TurboImage Database Detail" and "SOS TurboIMAGE Process Detail".

    IMPORTANT! If you enable this option, the CPU load on your system can be increased substantially.

    Displaying Turbo Image detailed performance data
    To display Turbo Image detailed performance data in any SOS-TurboIMAGE screen:
  • From the SOS/3000 Main Option Menu screen, select Make Turbo Image detailed performance data available (option 17).
  • At the next prompt, enter Y (Yes).

  • Lund Performance Solutions
    www.lund.com
    Voice: (541) 812-7600
    Fax: (541) 812-7611
    info@lund.com
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