plimit

 

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 User Commands                                           plimit(1)
 
 
 


NAME
      plimit - get or set the resource limits of running processes
 


SYNOPSIS
      plimit [ -km ]  pid ...
 
      plimit { -cdfnstv }  soft,hard ...  pid ...
 


DESCRIPTION
      If one or more of the cdfnstv options is  specified,  plimit
      sets  the  soft  (current)  limit  and/or the hard (maximum)
      limit of the indicated resource(s) in the processes  identi-
      fied  by  the process-ID list, pid. Otherwise plimit reports
      the resource limits  of  the  processes  identified  by  the
      process-ID list, pid.
 
      Only the owner of a process or the super-user  is  permitted
      either  to  get  or to set the resource limits of a process.
      Only the super-user can increase the hard limit.
 


OPTIONS
      The following options are supported:
 
      -k    On output, show file sizes in kilobytes  (1024  bytes)
            rather than in 512-byte blocks.
 
      -m    On output, show file and  memory  sizes  in  megabytes
            (1024*1024 bytes).
 
      The remainder of the options are used  to  change  specified
      resource limits. They each accept an argument of the form:
 
           soft,hard
 
 
      where soft specifies  the  soft  (current)  limit  and  hard
      specifies the hard (maximum) limit. If the hard limit is not
      specified, the comma may be omitted. If the soft limit is an
      empty  string,  only  the  hard  limit is set. Each limit is
      either the literal string unlimited, or a  number,  with  an
      optional scaling factor, as follows:
 
           nk    n kilobytes
 
           nm    n megabytes (minutes for CPU time)
 
           nh    n hours (for CPU time only)
 
           mm:ss minutes and seconds (for CPU time only)
 
 
 
 
 
 
 SunOS 5.8            Last change: 8 Jun 1998                    1
 
 
 
 
 
 
 User Commands                                           plimit(1)
 
 
 
      The soft limit cannot exceed the hard limit.
 
      -c soft,hard
            Set core file size limits (default  unit  is  512-byte
            blocks).
 
      -d soft,hard
            Set data segment (heap) size limits (default  unit  is
            kilobytes).
 
      -f soft,hard
            Set  file  size  limits  (default  unit  is   512-byte
            blocks).
 
      -n soft,hard
            Set file descriptor limits (no default unit).
 
      -s soft,hard
            Set stack segment size limits (default unit  is  kilo-
            bytes).
 
      -t soft,hard
            Set CPU time limits (default unit is seconds).
 
      -v soft,hard
            Set virtual memory size limits (default unit is  kilo-
            bytes).
 


OPERANDS
      The following operands are supported.
 
           pid   Process ID list.
 
 
 EXIT STATUS
      plimit returns the exit value zero on success,  non-zero  on
      failure  (such  as  no  such  process, permission denied, or
      invalid option).
 


FILES
      /proc/pid/*
            process information and control files
 


ATTRIBUTES
      See attributes(5) for descriptions of the  following  attri-
      butes:
 
 
 
 
 
 
 
 
 
 SunOS 5.8            Last change: 8 Jun 1998                    2
 
 
 
 
 
 
 User Commands                                           plimit(1)
 
 
 
      ____________________________________________________________
     |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
     |_____________________________|_____________________________|
     | Availability                | SUNWesu                     |
     |_____________________________|_____________________________|
 
 


SEE ALSO
      ulimit(1),  proc(1),  getrlimit(2),  setrlimit(2),  proc(4),
      attributes(5),
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 SunOS 5.8            Last change: 8 Jun 1998                    3
 
 
 

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