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Lund Performance Solutions


SOS Process Detail

The Process Detail Screen

The Process Detail screen displays detailed information about a specific process.




Figure 28.1 SOS Process Detail screen
To access this screen from any SOS display screen:
  • Type s from the SOS Enter command: prompt to view the Screen Selection Menu screen.
  • From the Screen Selection Menu screen, enter P (Process Detail).
  • At the secondary prompt:
  • Press the Enter key to display the process detail information for the given process.
  • Or, enter the PID of another process.
  • Process Detail Screen Display Items

    PID

    The PID portion of the Process Detail screen displays process identification. Each data item is described in the following table.
    Table 28.1
    Data Item
    Description
    Pid
    The identification number for the specified process.
    PPID
    The identification number for the parent process.
    SOS PID data items

    ID

    The ID portion of the Process Detail screen displays additional identification information. Each data item is described in the following table.
    Table 28.2
    Data Item
    Description
    Cmd
    The command that was invoked to create the process (does not include arguments).
    User
    The real user name of the user that owns the process.
    Group
    The name of the group that owns the process.
    SOS ID data items

    SCHEDULING

    The SCHEDULING portion of the Process Detail screen displays scheduling information. Each data item is described in the following table.
    Table 28.3
    Data Item
    Description
    Nice
    The nice value. A value of R indicates the process has a real time priority—the nice value is not used. For information about the nice utility, see the Unix man page, "nice."
    Pri
    The priority of the process, depending on the scheduling policy.
    Sched
    The Sched data item represents the scheduling policy of the process:
  • HPUX - Timeshare
  • RTPRIO - Real-Time
  • FIFO - Posix First In/First Out
  • RR - Posix Round-Robin
  • RR2 - Posix Round-Robin with a per-priority timeslice
  • For information about the scheduling, see the "priocntl" Unix man page.
    SOS SCHEDULING data items

    TERMINAL

    The TERMINAL portion of the Process Detail screen displays terminal information related to the process. Each data item is described in the next table.
    Table 28.4
    Data Item
    Description
    tty
    The device file associated with the terminal device. If the process is not attached to a terminal, three dashes (---) is displayed.
    State
    The terminal state:
  • DET - detached from a terminal.
  • ATT - attached to a terminal.
  • ioch /s
    The number of character I/Os to or from the terminal, per second.
    SOS TERMINAL data items

    MEMORY

    The MEMORY portion of the Process Detail screen displays process and workload memory information. Each data item is described in the following table.
    Table 28.5
    Data Item
    Description
    RSS
    The resident set size, which is equal to the amount of RAM the process is using. This value does not include shared memory.
    VSS
    The amount of virtual memory the process has reserved, which is equal to the size of the process’ core image including text, data, and stack.
    State
    The process state with respect to memory (not applicable to workloads):
  • Dead - the process is dead.
  • LOAD - the process is loaded in memory.
  • DEACT - the process is deactivated.
  • Min /s
    The number of minor page faults experienced by the process, per second (see "minor page fault").
    Maj /s
    The number of major page faults experienced by the process, per second (see "major page fault").
    Dcts /s
    Deactivations experienced by the process per second (see "deactivation".
    SOS MEMORY data items

    CPU

    The CPU portion of the Process Detail screen displays process and workload CPU information. Using the c command key toggles between two sets of data: a detailed breakdown of CPU usage and a list of response and transaction data. Each data item is described in the following table.
    Table 28.6
    Data Item
    Description
    CPU %
    The percentage of the current interval that the process was executing. This value is normalized for multiple processors—the sum of the CPU% values should not exceed 100.
    CPU ms
    The number of milliseconds the process was executing. The value in brackets, [ ], is a cumulative value, not an averaged cumulative value.
    User %
    The percentage of the process’ execution time spent in user mode. This includes real, nice, and negative nice time.
    Sys %
    The percentage of the process’ execution time spent in system/kernel mode. This includes memory and trap time.
    CSW %
    The percentage of the process’ execution time spent processing context switches.
    Intr %
    The percentage of the process’ execution time spent managing interrupts.
    SOS CPU data items

    DISK

    The DISK portion of the Process Detail screen displays various process and workload disk statistics. Each data item is described in Table 28.7.
    Table 28.7
    Data Item
    Description
    Log
    Reads
    Total number of logical disk reads on the system (for more information, see "logical I/O").
    Writes
    Total number of logical disk writes.
    Rd/s
    Logical reads per second.
    Wr/s
    Logical writes per second.
    Phy
    Reads
    Total number of physical disk reads on the system (see "physical I/O").
    Writes
    Total number of physical writes on the system.
    Rd/s
    Physical reads per second.
    Wr/s
    Physical writes per second.
    User
    Reads
    Total number of user reads on the system (see "user I/O").
    Writes
    Total number of user writes on the system.
    Rd/s
    User reads per second.
    Wr/s
    User writes per second.
    Virt Mem
    Reads
    Total number of virtual memory reads on the system (see "virtual memory I/O").
    Writes
    Total number of virtual memory writes on the system.
    Rd/s
    Virtual memory reads per second.
    Wr/s
    Virtual memory writes per second.
    Raw
    Reads
    Total number of raw memory reads on the system (see "raw I/O").
    Writes
    Total number of raw memory writes on the system.
    Rd/s
    Raw memory reads per second.
    Wr/s
    Raw memory writes per second.
    Sys
    Reads
    Total number of system reads on the system (see "system I/O").
    Writes
    Total number of system writes on the system.
    Rd/s
    System reads per second.
    Wr/s
    System writes per second.
    SOS DISK data items

    WAIT STATES

    The WAIT STATES portion of the Process Detail screen displays various process and workload wait state information. Each wait state is described in "Wait State Codes" of the Glossary of Terms.

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