svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
plimit(1)
plimit(1) User Commands plimit(1)
NAME
plimit - get or set the resource limits of running processes
SYNOPSIS
plimit [-hkm] [--scale[=item1,,item2,...]] 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 identified by the process-ID list, pid.
Otherwise plimit reports the resource limits of the processes identi‐
fied by the process-ID list, pid.
The owner of a process is permitted to either get or set the resource
limits of a process, unless the process has the {PRIV_PROC_SENSITIVE}
flag set (see the getpflags(2) man page). The {PRIV_PROC_OWNER} privi‐
lege is required to get or set the resource limits of a process which
is either owned by another uid or has the {PRIV_PROC_SENSITIVE} flag
set. The {PRIV_SYS_RESOURCE} privilege is required to increase a hard
limit.
OPTIONS
The following options are supported:
-h
On output, file and memory sizes are scaled to a human readable
format. The -h option is equivalent to using the --scale=max,1024
option.
-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).
--scale[=item1,item2,...]
On output, file and memory sizes are scaled to a human readable
format, for example, 14K, 234M, 2.7G, or 3.0T. Scaling is done by
repetitively dividing by 1024, unless otherwise specified. --scale
specified without arguments enables default scaled output, and is
equivalent to --scale=max,1024. See scale(7) for a complete de‐
scription of --scale features.
-?
--help
Print usage message and immediately exit.
The remainder of the options are used to change specified resource lim‐
its. 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 can have one of the following forms:
unlimited The literal string unlimited indicates that no limit
applies to the given resource.
n[.n][scale] A plain number, with an optional fraction and scale
factor. When specifying CPU time, the h or m scale fac‐
tors can be applied, indicating hours or minutes re‐
spectively. When specifying file or memory sizes, the
k, m, g, t, p, and e scale factors can be specified,
denoting kilobytes, megabytes, gigabytes, terabytes,
petabytes, or exabytes, respectively.
mm:ss Minutes and seconds (for CPU time only).
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. May be specified as a numeric id or /proc/pid.
EXAMPLES
Example 1 Setting a limit for a single process
The following example sets the file descriptor soft limit to 1024 and
does not change the hard limit, for process id 5114:
$ plimit -n 1024 5114
Note that some programs do not check if the number of file descriptors
they can use has changed while running and may continue to use to the
number they had at startup.
Example 2 Setting a limit for all running processes
The following example sets the maximum core dump size (both soft and
hard limits) to zero bytes for all processes running on the system:
# plimit -c 0,0 /proc/*
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(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Availabilitysystem/core-os
SEE ALSO
prctl(1), proc(1), ulimit(1), getpflags(2), getrlimit(2), setrlimit(2),
proc(5), attributes(7), privileges(7), scale(7)
HISTORY
The -?, -h, --help, and --scale options were added in Oracle Solaris
11.4.42.
The plimit command was added in Solaris 7.
Oracle Solaris 11.4 29 Nov 2022 plimit(1)