PSTAT
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NAME
pstat - print system facts
SYNOPSIS
pstat
[
-aixptuf
] [ suboptions ]
[ file ]
DESCRIPTION
Pstat
interprets the contents of certain system tables.
If
file
is given, the tables are sought there, otherwise
in
/dev/mem.
The required namelist is taken from
/unix.
Options are
- -a
-
Under
-p,
describe all process slots rather than just active ones.
- -i
-
Print the inode table with the these headings:
- LOC
-
The core location of this table entry.
- FLAGS
-
Miscellaneous state variables encoded thus:
-
- L
-
locked
- U
-
update time
filsys(5))
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 file
- C
-
changed time must be corrected
- CNT
-
Number of open file table entries for this inode.
- DEV
-
Major and minor device number of file system in which
this inode resides.
- INO
-
I-number within the device.
- MODE
-
Mode bits, see
chmod(2).
- NLK
-
Number of links to this inode.
- UID
-
User ID of owner.
- SIZ/DEV
-
Number of bytes in an ordinary file, or
major and minor device of special file.
- -x
-
Print the text table with these headings:
- LOC
-
The core location of this table entry.
- FLAGS
-
Miscellaneous state variables encoded thus:
-
- T
-
ptrace(2)
in effect
- W
-
text not yet written on swap device
- L
-
loading in progress
- K
-
locked
- w
-
wanted (L flag is on)
- DADDR
-
Disk address in swap, measured in multiples of 512 bytes.
- CADDR
-
Core address, measured in multiples of 64 bytes.
- SIZE
-
Size of text segment, measured in multiples of 64 bytes.
- IPTR
-
Core location of corresponding inode.
- CNT
-
Number of processes using this text segment.
- CCNT
-
Number of processes in core using this text segment.
- -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
-
waiting for some event
- 3
-
runnable
- 4
-
being created
- 5
-
being terminated
- 6
-
stopped under trace
- F
-
Miscellaneous state variables, or-ed together:
-
- 01
-
loaded
- 02
-
the scheduler process
- 04
-
locked
- 010
-
swapped out
- 020
-
traced
- 040
-
used in tracing
- 0100
-
locked in by
lock(2).
- PRI
-
Scheduling priority, see
nice(2).
- SIGNAL
-
Signals received (signals 1-16 coded in bits 0-15),
- UID
-
Real user ID.
- TIM
-
Time resident in seconds; times over 127 coded as 127.
- CPU
-
Weighted integral of CPU time, for scheduler.
- NI
-
Nice level,
see
nice(2).
- PGRP
-
Process number of root of process group
(the opener of the controlling terminal).
- PID
-
The process ID number.
- PPID
-
The process ID of parent process.
- ADDR
-
If in core, the physical address of the `u-area' of
the process measured in multiples of 64 bytes.
If swapped out, the position in the swap area
measured in multiples of 512 bytes.
- SIZE
-
Size of process image in multiples of 64 bytes.
- WCHAN
-
Wait channel number of a waiting process.
- LINK
-
Link pointer in list of runnable processes.
- TEXTP
-
If text is pure, pointer to location of text table entry.
- CLKT
-
Countdown for
alarm(2)
measured in seconds.
- -t
-
Print table for terminals (only DH11 and DL11 handled)
with these headings:
- RAW
-
Number of characters in raw input queue.
- CAN
-
Number of characters in canonicalized input queue.
- OUT
-
Number of characters in putput queue.
- MODE
-
See
tty(4).
- ADDR
-
Physical device address.
- DEL
-
Number of delimiters (newlines) in canonicalized input queue.
- COL
-
Calculated column position of terminal.
- STATE
-
Miscellaneous state variables encoded thus:
-
- W
-
waiting for open to complete
- O
-
open
- S
-
has special (output) start routine
- C
-
carrier is on
- B
-
busy doing output
- A
-
process is awaiting output
- X
-
open for exclusive use
- H
-
hangup on close
- PGRP
-
Process group for which this is controlling terminal.
- -u
-
print information about a user process;
the next argument is its address as given
by
ps(1).
The process must be in main memory, or the file used can
be a core image and the address 0.
- -f
-
Print the open file table with these headings:
- LOC
-
The core location of this table entry.
- FLG
-
Miscellaneous state variables encoded thus:
-
- R
-
open for reading
- W
-
open for writing
- P
-
pipe
- 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(2).
FILES
/unix namelist
/dev/mem default source of tables
SEE ALSO
ps(1), stat(2), filsys(5)
K. Thompson,
UNIX Implementation
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- FILES
-
- SEE ALSO
-
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