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PROCSTAT(1) General Commands Manual PROCSTAT(1) NAME procstat -- get detailed process information SYNOPSIS procstat [--libxo] [-h] [-M core] [-N system] [-w interval] command [pid ... | core ...] procstat [--libxo] -a [-h] [-M core] [-N system] [-w interval] command procstat [--libxo] [-h] [-M core] [-N system] [-w interval] [-b | -c | -e | -f [-C] | -i [-n] | -j [-n] | -k [-k] | -l | -r [-H] | -s | -S | -t | -v | -x] [pid ... | core ...] procstat [--libxo] -a [-h] [-M core] [-N system] [-w interval] [-b | -c | -e | -f [-C] | -i [-n] | -j [-n] | -k [-k] | -l | -r [-H] | -s | -S | -t | -v | -x] procstat [--libxo] -L [-h] [-M core] [-N system] [-w interval] core ... pargs [--libxo] pid ... penv [--libxo] pid ... pwdx [--libxo] pid ... DESCRIPTION procstat utility displays detailed information about the processes identi- fied by the pid arguments, or if the -a flag is used, all processes. It can also display information extracted from a process core file, if the core file is specified as the argument. The pargs, penv and pwdx utilities display the arguments, environment, and current working directory, respectively of the process specified by pid ar- gument. They mimic the behavior of Solaris utilities of the same names. If the --libxo flag is specified the output is generated via libxo(3) in a selection of different human and machine readable formats. See xo_op- tions(7) for details on command line arguments. The following commands are available for procstat: advlock Print information about advisory locks on files. All three types of locks are listed, BSD-style lockf(2), POSIX-style fcntl(2) F_SETLK, and remote lockd(8) locks used by NFSv3. Note that neither the -a option nor pid list can be used to limit the display of the locks, mostly because some types of locks do not have local (or any) owning processes. argument(s) | -c Display command line arguments for the process. Substring commands are accepted. auxv | -x Display ELF auxiliary vector for the process. basic Print basic process statistics (this is the default). binary | -b Display binary information for the process. Substring commands are accepted. credential(s) | -s Display security credential information for the process. Substring commands are accepted. cpuset | cs | -S Display the cpuset information for the thread. environment | -e Display environment variables for the process. Substring commands are accepted. file(s) | fd(s) | -f Display file descriptor information for the process. If the -C subcommand flag is used then additional capability infor- mation is printed. kqueue(s) [-v] Display the events registered in the process kqueues. The filter name, filter-specific identifier, flags, filter-specific flags, system and user data, and event status are displayed. If the -v verbose flag is provided to the subcommand, the values of the ext array are displayed as well. For flags, a string is printed consisting of the following symbols corresponding to set flags: O EV_ONESHOT C EV_CLEAR R EV_RECEIPT D EV_DISPATCH d EV_DROP 1 EV_FLAG1 2 EV_FLAG2 For status: A KNOTE_STATUS_ACTIVE Q KNOTE_STATUS_QUEUED D KNOTE_STATUS_DISABLED d KNOTE_STATUS_DETACHED K KNOTE_STATUS_KQUEUE kstack | -k Display the stacks of kernel threads in the process, excluding stacks of threads currently running on a CPU in userspace. If the -v subcommand option is used (or the command flag is re- peated), function offsets as well as function names are printed. pargs Display arguments for the process. penv Display environment variables for the process. ptlwpinfo | -L Display LWP info for the process pertaining to its signal driven exit. pwdx Display current working directory for the process. rlimit | -l Display resource limits for the process. rlimitusage Display the usage of the resource limits for the process. rusage | -r Display resource usage information for the process. If the -v (or -H) subcommand flag is used then per-thread statis- tics are printed, rather than per-process statistics. The second field in the table will list the thread ID to which the row of in- formation corresponds. signal(s) | -i Display signal pending and disposition information for the process. If the -n subcommand option is used, the signal numbers are shown instead of signal names. Substring commands are accepted. thread(s) | -t Display thread information for the process. tsignal(s) | -j Display signal pending and blocked information for the process's threads. If the -n subcommand option is used, the signal numbers are shown instead of signal names. Substring commands are accepted. vm | -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 spec- ified, the output will not repeat. Information for VM, file descriptor, and cpuset options is available only to the owner of a process or the superuser. A cpuset value displayed as -1 means that the information is either invalid or not available. Binary Information Display the process ID, command, and path to the process binary: PID process ID COMM command OSREL osreldate for process binary 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) Environment Variables Display the process ID, command, and environment variables: PID process ID COMM command ENVIRONMENT environment variables (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 system path. By default, the following information will be printed: 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: e POSIX semaphore E eventfd f fifo h shared memory i inotify descriptor k kqueue m message queue P process descriptor 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 d directory f fifo l symbolic link r regular file 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 If the -C flag is specified, the vnode type, reference count, and offset fields will be omitted, and a new capabilities field will be included list- ing capabilities, as described in cap_rights_limit(2), present for each ca- pability descriptor. The following network protocols may be displayed (grouped by address fam- ily): AF_INET, AF_INET6 ICM IPPROTO_ICMP; see icmp(4). IP? unknown protocol. RAW IPPROTO_RAW; see ip(4). SCT IPPROTO_SCTP; see sctp(4). TCP IPPROTO_TCP; see tcp(4). UDP IPPROTO_UDP; see udp(4). AF_LOCAL UDD Datagram socket. UDS Stream socket. UDQ Sequential Packet Stream socket. UD? unknown protocol. AF_DIVERT IPD Divert socket; see divert(4). ? unknown address family. 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 SIG_IGN; - otherwise. C if the signal will be caught; - 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's threads: PID process ID TID thread ID COMM command 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 signal numbers are shown instead of signal names. Kernel Thread Stacks Display kernel thread stacks for a process, allowing further interpretation of thread wait channels. If the -k flag is repeated, function offsets, 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 Resource Limits Display resource limits for a process: PID process ID COMM command RLIMIT resource limit name SOFT soft limit HARD hard limit Resource Usage Display resource usage for a process. If the -H flag is specified, re- source usage for individual threads is displayed instead. PID process ID TID thread ID (if -H is specified) COMM command RESOURCE resource name VALUE current usage 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 UMASK file creation mode mask FLAGS credential flags GROUPS group set The following credential flags may be displayed: C capability mode 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 FLAG 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 md device with managed pages (GEM/TTM) ph physical sg scatter/gather sw swap vn vnode gd guard (pseudo-type) The following mapping flags may be displayed: C copy-on-write N needs copy S one or more superpage mappings are used D grows down (top-down stack) U grows up (bottom-up stack) W pages in this range are locked by mlock(2) or mlockall(2) ELF Auxiliary Vector Display ELF auxiliary vector values: PID process ID COMM command AUXV auxiliary vector name VALUE auxiliary vector value Advisory Lock Information RW Read/Write type, RO for read, RW for write lock TYPE Type of the lock, one of FLOCK for flock(2), FCNTL for fcntl(2), LOCKD for remote PID Process id of the owner, for FCNTL and remote types SYSID Remote system id if applicable FSID File system id where the locked file resize RDEV rdev for the file system INO Unique file identifier (inode number) of the locked file on the file system START Start offset of the locked range LEN Length of the locked range. Zero means till EOF PATH If available, the path of the locked file EXIT STATUS The procstat utility exits 0 on success, and >0 if an error occurs. EXAMPLES Show binary information about the current shell: $ procstat binary $$ PID COMM OSREL PATH 46620 bash 1201000 /usr/local/bin/bash Same as above but showing information about open file descriptors: $ procstat files $$ PID COMM FD T V FLAGS REF OFFSET PRO NAME 46620 bash text v r r------- - - - /usr/local/bin/bash 46620 bash ctty v c rw------ - - - /dev/pts/12 46620 bash cwd v d r------- - - - /tmp 46620 bash root v d r------- - - - / 46620 bash 0 v c rw------ 7 372071 - /dev/pts/12 46620 bash 1 v c rw------ 7 372071 - /dev/pts/12 46620 bash 2 v c rw------ 7 372071 - /dev/pts/12 46620 bash 255 v c rw------ 7 372071 - /dev/pts/12 Show the arguments used to launch init(8): $ procstat arguments 1 PID COMM ARGS 1 init /sbin/init -- Extract binary information from a core dump: $ procstat binary core.36642 PID COMM OSREL PATH 36642 top 1201000 /usr/bin/top Trying to extract information from a core file generated in a different ma- jor FreeBSD version might show an error like this: $ procstat mplayer.core procstat: kinfo_proc structure size mismatch procstat: procstat_getprocs() SEE ALSO fstat(1), ps(1), sockstat(1), cap_enter(2), cap_rights_limit(2), ino- tify(2), mlock(2), mlockall(2), libprocstat(3), libxo(3), signal(3), xo_op- tions(7), ddb(4), divert(4), icmp(4), ip(4), sctp(4), tcp(4), udp(4), stack(9) AUTHORS Robert N M Watson <rwatson@FreeBSD.org>. libxo(3) support was added by Allan Jude <allanjude@FreeBSD.org>. Juraj Lutter <juraj@lutter.sk> added the pargs, penv and pwdx functional- ity. BUGS 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. FreeBSD ports 15.quarterly July 16, 2025 PROCSTAT(1)
NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | EXAMPLES | SEE ALSO | AUTHORS | BUGS
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