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.