PROCSTAT(1) BSD General Commands Manual PROCSTAT(1)NAMEprocstat — get detailed process information
SYNOPSISprocstat [-h] [-n] [-w interval]
[-b | -c | -f | -i | -j | -k | -s | -t | -v] [-a | pid ...]
DESCRIPTION
The procstat utility displays detailed information about the processes
identified by the pid arguments, or if the -a flag is used, all pro‐
cesses.
By default, basic process statistics are printed; one of the following
options may be specified in order to select more detailed process infor‐
mation for printing:
-b Display binary information for the process.
-c Display command line arguments for the process.
-f Display file descriptor information for the process.
-i Display signal pending and disposition information for the
process.
-j Display signal pending and blocked information for the process
threads.
-k Display the stacks of kernel threads in the process, excluding
stacks of threads currently running on a CPU and threads with
stacks swapped to disk. If the flag is repeated, function off‐
sets as well as function names are printed.
-s Display security credential information for the process.
-t Display thread information for the process.
-v Display virtual memory mappings for the process.
All options generate output in the format of a table, the first field of
which is the process ID to which the row of information corresponds. The
-h flag may be used to suppress table headers.
The -w flag may be used to specify a wait interval at which to repeat the
printing of the requested process information. If the -w flag is not
specified, the output will not repeat.
Some information, such as VM and file descriptor information, is avail‐
able only to the owner of a process or the superuser.
Binary Information
Display the process ID, command, and path to the process binary:
PID process ID
COMM command
PATH path to process binary (if available)
Command Line Arguments
Display the process ID, command, and command line arguments:
PID process ID
COMM command
ARGS command line arguments (if available)
File Descriptors
Display detailed information about each file descriptor referenced by a
process, including the process ID, command, file descriptor number, and
per-file descriptor object information, such as object type and file sys‐
tem path:
PID process ID
COMM command
FD file descriptor number or cwd/root/jail
T file descriptor type
V vnode type
FLAGS file descriptor flags
REF file descriptor reference count
OFFSET file descriptor offset
PRO network protocol
NAME file path or socket addresses (if available)
The following file descriptor types may be displayed:
c crypto
f fifo
h shared memory
k kqueue
m message queue
p pipe
s socket
t pseudo-terminal master
v vnode
The following vnode types may be displayed:
- not a vnode
b block device
c character device
f fifo
l symbolic link
s socket
x revoked device
The following file descriptor flags may be displayed:
r read
w write
a append
s async
f fsync
n non-blocking
d direct I/O
l lock held
Signal Disposition Information
Display signal pending and disposition for a process:
PID process ID
COMM command
SIG signal name
FLAGS process signal disposition details, three symbols
P if signal is pending in the global process queue, - otherwise
I if signal delivery disposition is SIGIGN, - otherwise
C if signal delivery is to catch it, - otherwise
If -n switch is given, the signal numbers are shown instead of signal
names.
Thread Signal Information
Display signal pending and blocked for a process threads:
PID process ID
COMM command
TID thread ID
SIG signal name
FLAGS thread signal delivery status, two symbols
P if signal is pending for the thread, - otherwise
B if signal is blocked in the thread signal mask, - if not
blocked
The -n switch has the same effect as for the -i switch, the signals num‐
bers are shown instead of signal names.
Kernel Thread Stacks
Display kernel thread stacks for a process, allowing further interpreta‐
tion of thread wait channels. If the -k flag is repeated, function off‐
sets, not just function names, are printed.
This feature requires options STACK or options DDB to be compiled into
the kernel.
PID process ID
TID thread ID
COMM command
TDNAME thread name
KSTACK kernel thread call stack
Security Credentials
Display process credential information:
PID process ID
COMM command
EUID effective user ID
RUID real user ID
SVUID saved user ID
EGID effective group ID
RGID real group ID
SVGID saved group ID
GROUPS group set
Thread Information
Display per-thread information, including process ID, per-thread ID,
name, CPU, and execution state:
PID process ID
TID thread ID
COMM command
TDNAME thread name
CPU current or most recent CPU run on
PRI thread priority
STATE thread state
WCHAN thread wait channel
Virtual Memory Mappings
Display process virtual memory mappings, including addresses, mapping
meta-data, and mapped object information:
PID process ID
START starting address of mapping
END ending address of mapping
PRT protection flags
RES resident pages
PRES private resident pages
REF reference count
SHD shadow page count
FL mapping flags
TP VM object type
The following protection flags may be displayed:
r read
w write
x execute
The following VM object types may be displayed:
-- none
dd dead
df default
dv device
ph physical
sw swap
vn vnode
The following mapping flags may be displayed:
C copy-on-write
N needs copy
EXIT STATUS
The procstat utility exits 0 on success, and >0 if an error occurs.
SEE ALSOfstat(1), ps(1), sockstat(1), ddb(4), stack(9)AUTHORS
Robert N M Watson
BUGS
Some field values may include spaces, which limits the extent to which
the output of procstat may be mechanically parsed.
The display of open file or memory mapping pathnames is implemented using
the kernel's name cache. If a file system does not use the name cache,
or the path to a file is not in the cache, a path will not be displayed.
procstat currently supports extracting data only from a live kernel, and
not from kernel crash dumps.
BSD March 7, 2010 BSD