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The prstat utility iteratively examines all active processes on the system and reports
statistics based on the selected output mode and sort order. prstat provides options
to examine only processes matching specified PIDs, UIDs, zone IDs, CPU IDs, and
processor set IDs.
The -j, -k, -C, -p, -P, -u, -U, and -z options accept lists as arguments. Items in a list
can be either separated by commas or enclosed in quotes and separated by commas or
spaces.
If you do not specify an option, prstat examines all processes and reports statistics
sorted by CPU usage.
The following options are supported:
-a
Report information about processes and users. In this mode prstat displays
separate reports about processes and users at the same time.
-c
Print new reports below previous reports instead of overprinting them.
-C psrsetlist
Report only processes or lwps that are bound to processor sets in the given list.
Each processor set is identified by an integer as reported by psrset(1M). The load
averages displayed are the sum of the load averages of the specified processor sets
(see pset_getloadavg(3C)). Processes with one or more LWPs bound to
processor sets in the given list are reported even when the -L option is not used.
-j projlist
Report only processes or lwps whose project ID is in the given list. Each project ID
can be specified as either a project name or a numerical project ID. See project(4).
-J
Report information about processes and projects. In this mode prstat displays
separate reports about processes and projects at the same time.
-k tasklist
Report only processes or lwps whose task ID is in tasklist.
-L
Report statistics for each light-weight process (LWP). By default, prstat reports
only the number of LWPs for each process.
-m
Report microstate process accounting information. In addition to all fields listed in
-v mode, this mode also includes the percentage of time the process has spent
processing system traps, text page faults, data page faults, waiting for user locks
and waiting for CPU (latency time).
-n ntop[,nbottom]
Restrict number of output lines. The ntop argument determines how many lines of
process or lwp statistics are reported, and the nbottom argument determines how
many lines of user, task, or projects statistics are reported if the -a, -t, -T, or -J
options are specified. By default, prstat displays as many lines of output that fit
in a window or terminal. When you specify the -c option or direct the output to a
file, the default values for ntop and nbottom are 15 and 5.
-p pidlist
Report only processes whose process ID is in the given list.
-P cpulist
Report only processes or lwps which have most recently executed on a CPU in the
given list. Each CPU is identified by an integer as reported by psrinfo(1M).
-R
Put prstat in the real time scheduling class. When this option is used, prstat is
given priority over time-sharing and interactive processes. This option is available
only for superuser.
-s key
Sort output lines (that is, processes, lwps, or users) by key in descending order.
Only one key can be used as an argument.
There are five possible key values:
cpu
Sort by process CPU usage. This is the default.
pri
Sort by process priority.
rss
Sort by resident set size.
size
Sort by size of process image.
time
Sort by process execution time.
-S key
Sort output lines by key in ascending order. Possible key values are the same as for
the -s option. See -s.
-t
Report total usage summary for each user. The summary includes the total number
of processes or LWPs owned by the user, total size of process images, total resident
set size, total cpu time, and percentages of recent cpu time and system memory.
-T
Report information about processes and tasks. In this mode prstat displays
separate reports about processes and tasks at the same time.
-u euidlist
Report only processes whose effective user ID is in the given list. Each user ID may
be specified as either a login name or a numerical user ID.
-U uidlist
Report only processes whose real user ID is in the given list. Each user ID may be
specified as either a login name or a numerical user ID.
-v
Report verbose process usage. This output format includes the percentage of time
the process has spent in user mode, in system mode, and sleeping. It also includes
the number of voluntary and involuntary context switches, system calls and the
number of signals received. Statistics that are not reported are marked with the -
sign.
-z zoneidlist
Report only processes or LWPs whose zone ID is in the given list. Each zone ID can
be specified as either a zone name or a numerical zone ID. See zones(5).
-Z
Report information about processes and zones. In this mode, prstat displays
separate reports about processes and zones at the same time.
The following list defines the column headings and the meanings of a prstat report:
PID
The process ID of the process.
USERNAME
The real user (login) name or real user ID.
SIZE
The total virtual memory size of the process, including all mapped files and
devices, in kilobytes (K), megabytes (M), or gigabytes (G).
RSS
The resident set size of the process (RSS), in kilobytes (K), megabytes (M), or
gigabytes (G). The RSS value is an estimate provided by proc(4) that might
underestimate the actual resident set size. Users who want to get more accurate
usage information for capacity planning should use the -x option to pmap(1)
instead.
STATE
The state of the process:
cpuN
Process is running on CPU N.
sleep
Sleeping: process is waiting for an event to complete.
run
Runnable: process in on run queue.
zombie
Zombie state: process terminated and parent not waiting.
stop
Process is stopped.
PRI
The priority of the process. Larger numbers mean higher priority.
NICE
Nice value used in priority computation. Only processes in certain scheduling
classes have a nice value.
TIME
The cumulative execution time for the process.
CPU
The percentage of recent CPU time used by the process. If executing in a non-global
zone and the pools facility is active, the percentage will be that of the processors in
the processor set in use by the pool to which the zone is bound.
PROCESS
The name of the process (name of executed file).
LWPID
The lwp ID of the lwp being reported.
NLWP
The number of lwps in the process.
With the some options, in addition to a number of the column headings shown above,
there are:
NPROC Number of processes in a specified collection.
MEMORY Percentage of memory used by a specified collection of processes.
The following columns are displayed when the -v or -m option is specified
USR The percentage of time the process has spent in user mode.
SYS The percentage of time the process has spent in system mode.
TRP The percentage of time the process has spent in processing system
traps.
TFL The percentage of time the process has spent processing text page
faults.
DFL The percentage of time the process has spent processing data page
faults.
LCK The percentage of time the process has spent waiting for user
locks.
SLP The percentage of time the process has spent sleeping.
LAT The percentage of time the process has spent waiting for CPU.
VCX The number of voluntary context switches.
ICX The number of involuntary context switches.
SCL The number of system calls.
SIG The number of signals received.
Under the -L option, one line is printed for each lwp in the process and some
reporting fields show the values for the lwp, not the process.
The following operands are supported:
count Specifies the number of times that the statistics are repeated. By
default, prstat reports statistics until a termination signal is
received.
interval Specifies the sampling interval in seconds; the default interval is 5
seconds. |
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发表于 2007-03-29 11:02
发表于 2007-03-29 11:35
发表于 2007-03-29 17:04
