prlimit man page on Archlinux

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PRLIMIT(1)			 User Commands			    PRLIMIT(1)

       prlimit - get and set a process resource limits.

       prlimit [options] [--{resource_name}[=limits] [--pid PID]

       prlimit [options] [--{resource_name}[=limits]] command [argument...]

       Given a process id and one or more resources, prlimit tries to retrieve
       and/or modify the limits.

       When command is given, prlimit will run this  command  with  the	 given

       The  limits  format  is	composed by a soft and a hard (ceiling) value,
       separated by a semicolon (:), in order to modify the existing value(s).
       If no limits are used, prlimit will only display the current values. If
       one of the values is not used, then the existing one will be  used.  To
       specify	the  unlimited	or  infinity  limit (RLIM_INFINITY), the -1 or
       'unlimited' string can be passed.

       Because of the nature of limits, the soft value must be lower or	 equal
       to  the	high limit. To see all the available resource limits, refer to
       the RESOURCE OPTIONS section.

       <soft>:<hard>  Specify both limits

       <soft>:	      Specify only the soft limit

       :<hard>	      Specify only the hard limit

       <value>	      Specify both soft and hard limits to the same value

       -p, --pid
	      Specify the process id, if none is given, it will use  the  run‐
	      ning process.

       -o, --output list
	      Define  the  output  columns to use. If no output arrangement is
	      specified, then a default set is used.  Use --help to  get  list
	      of all supported columns.

       -V, --version
	      Display version information and exit.

	      Verbose mode.

       --raw  Use the raw output format.

	      Do not print a header line.

       -h, --help
	      Display help text and exit.

       -c, --core[=limits]
	      Maximum size of a core file.

       -d, --data[=limits]
	      Maximum data size.

       -e, --nice[=limits]
	      Maximum nice priority allowed to raise.

       -f, --fsize[=limits]
	      Maximum file size.

       -i, --sigpending[=limits]
	      Maximum number of pending signals.

       -l, --memlock[=limits]
	      Maximum locked-in-memory address space.

       -m, --rss[=limits]
	      Maximum Resident Set Size (RSS).

       -n, --nofile[=limits]
	      Maximum number of open files.

       -q, --msgqueue[=limits]
	      Maximum number of bytes in POSIX message queues.

       -r, --rtprio[=limits]
	      Maximum real-time priority.

       -s, --stack[=limits]
	      Maximum size of the stack.

       -t, --cpu[=limits]
	      CPU time, in seconds.

       -u, --nproc[=limits]
	      Maximum number of processes.

       -v, --as[=limits]
	      Address space limit.

       -x, --locks[=limits]
	      Maximum number of file locks held.

       -y, --rttime[=limits]
	      Timeout for real-time tasks.

       prlimit --pid 13134
	      Display limit values for all current resources.

       prlimit --pid 13134 --rss --nofile=1024:4095
	      Display  the  limits of the RSS and set the soft and hard limits
	      for the number of open files to 1024 and 4095, respectively.

       prlimit --pid 13134 --nproc=512:
	      Modify only the soft limit for the number of processes.

       prlimit --pid $$ --nproc=unlimited
	      Set the number of processes for both soft and ceiling values  to

       prlimit --cpu=10 sort -u hugefile
	      Set the soft and hard CPU time limit and run 'sort'.

       prlimit(2), ulimit(1)

       The prlimit system call is supported since Linux 2.6.36, previous kernels will
       break this program.

       Davidlohr Bueso <> - In memory of Dennis M. Ritchie.

       The  prlimit command is part of the util-linux package and is available

util-linux			 October 2011			    PRLIMIT(1)

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