pstat(C)

Syntax

Description

If no options are specified, pstat prints information for all three tables: the inode table, the process table, and the file table.

pstat has the following options:

-a

Describe all process slots rather than just active ones. (Used in conjunction with the -p option.)

-f

Print the open file table with these headings:

LOC

The core location of this table entry.

FLAGS

Miscellaneous state variables:

R

open for reading

W

open for writing

A

open for append

N

no delay (non-blocking)

S

synchronized write operation

CNT

Number of processes that know this open file.

INO

The location of the inode table entry for this file.

OFFS

The file offset, see lseek(S).

-i

Print the inode table with these headings:

LOC

The core location of this table entry.

FLAGS

Miscellaneous state variables:

L

locked

U

update time must be corrected

A

access time must be corrected

M

file system is mounted here

W

wanted by another process (L flag is on)

T

contains a text (executable image) file

C

changed time must be corrected

CNT

Number of open file table entries for this inode.

DEVICE

Major and minor device number of file system in which this inode resides.

INO

I-number within the device.

FS

Filesystem type. 1 indicates UNIX.

MODE

Mode bits, see chmod(S).

NLK

Number of links to this inode.

UID

User ID of owner.

SIZE/DEV

Number of bytes in an ordinary file, or major and minor device of special file.

-n namelist

Use the file namelist as an alternate namelist in place of /unix.

-p

Print process table for active processes with these headings:

LOC

The core location of this table entry.

S

Run state encoded thus:

0

no process

1

SSLEEP; waiting for an event to complete

2

SRUN; on the run queue

3

SZOMB; terminated and parent not waiting

4

SSTOP; stopped by debugger while being traced

5

SIDL; idle while being created

6

SONPROC; running on the processor

7

SXBRK; waiting for more pages of memory

F

Miscellaneous state variables, ORed together:

0x00000001

System (resident) process always resident in primary memory.

0x00000002

Process is being traced.

0x00000004

Traced process (using ptrace(S)) has been given to parent by wait(S). Don't return this process to parent again until it runs first.

0x00000008

Process sleeping at priority 25 or less and cannot be awakened by a signal.

0x00000010

Process loaded in primary memory.

0x00000020

Process locked in primary memory and cannot be swapped.

0x00000040

Set when signal goes remote (not used).

0x00000080

Process in Stream poll(S) or doing select(S).

0x00000100

Process is being stopped.

0x00000200

Signal or syscall tracing.

0x00000400

Do not run; performing I/O.

0x00000800

Stop on exec(S).

0x00001000

Process is open.

0x00002000

u-area in primary memory.

0x00004000

Set process running on last close.

0x00008000

Process asleep, stop not allowed.

0x00010000

Process is exiting via ptrace(S).

0x00020000

Process is stopped within a call to sleep(D3oddi).

0x00040000

u-area is being swapped in or out.

0x00080000

Waiting for u-area swap to complete.

0x00100000

Restore old mask after taking signal.

0x00200000

Child of a fork(S), but no exec yet.

0x00400000

Child being traced after fork.

0x00800000

Process may only be traced by the super user.

0x01000000

Process is exiting.

PRI

Scheduling priority, see nice(C).

SIG

Signals received (signals 1-32 coded in bits 0-31).

UID

Real user ID.

TIM

Time resident in seconds; times over 127 appear as 127.

CPU

Weighted integral of CPU time used by the scheduler.

NI

Nice level, see nice(C).

PGRP

Process number of process group leader.

PID

The process ID number.

PPID

The process ID of parent process.

ADDR1

ADDR2

The page frame numbers of the first two pages of the u-area of the process. If the u-area of the process is in primary memory, these numbers can be translated into the physical addresses of the pages. If the u-area is swapped out, the numbers correspond to the addresses of the pages in the swap area measured in multiples of 4 kilobytes.

WCHAN

Wait channel number of a waiting process.

LINK

Link pointer in list of runnable processes.

INODP

Pointer to location of shared inode.

CLKT

Countdown for alarm(S) measured in seconds.

-P pid

Print information about a user process drawn from its user area (defined in /usr/include/sys/user.h). pid is the ID of the process. It may be obtained using the ps(C) command.

Authorization

Files

/unix

default namelist

/dev/kmem

kernel virtual memory accessed for tables

See also

``Maintaining system security'' in the System Administration Guide

Standards conformance