psrinfo(1) General Commands Manual psrinfo(1)NAME
psrinfo, pinfo - Displays processor administration information
SYNOPSIS
/usr/sbin/psrinfo -n
/usr/sbin/psrinfo [-v] [processor...]
/usr/sbin/psrinfo -s processor
/usr/sbin/pinfo [-v] [processor...]
OPTIONS
Displays the number of processors in the system. Enables verbose mode. Writes only a boolean value to standard output. The -s option
requires a single processor identification number (processor). The -s option is intended to be used in scripts. A value of 1 is output if
the specified processor is on line. A value of 0 is output if the specified processor is off line.
DESCRIPTION
The psrinfo and pinfo commands display information about processors. The processor variable specifies the processor identification number,
which is a unique integer that identifies the processor. If you do not specify any options or a processor identification number, the com-
mands display information about all processors.
EXAMPLES
The following is an example of the default prsinfo command output (no options or processor identification numbers):
greene:> psrinfo 0 on-line since 11/03/1999 09:41:34 1 on-line since 11/03/1999 09:41:34 2 off-line since
11/03/1999 08:41:34
The following example shows how to use the psrinfo command with the -s option in a shell script to determine the state of the pro-
cessor with an identification number of 1:
if [ "`psrinfo -s 1 2> /dev/null`" -eq 1 ] then echo "processor 1 is up" else echo "processor 1 is down" fi The following
example shows how to use the psrinfo command with the -v option:
% psrinfo -v Status of processor 0 as of: 05/23/00 15:47:40
Processor has been on-line since 05/23/2000 15:08:04
The alpha EV5.6 (21164A) processor operates at 465 MHz,
and has an alpha internal floating point processor. Status of processor 1 as of: 05/23/00 15:47:40
Processor has been on-line since 05/23/2000 15:08:04
The alpha EV5.6 (21164A) processor operates at 465 MHz,
and has an alpha internal floating point processor. Status of processor 2 as of: 05/23/00 15:47:40
Processor has been off-line since 05/23/2000 15:08:04
The alpha EV5.6 (21164A) processor operates at 465 MHz,
and has an alpha internal floating point processor. Status of processor 3 as of: 05/23/00 15:47:40
Processor has been on-line since 05/23/2000 15:14:00
The alpha EV5.6 (21164A) processor operates at 465 MHz,
and has an alpha internal floating point processor.
FILES SEE ALSO
Commands: pset_assign_cpu(1), pset_assign_pid(1), pset_info(1), psradm(8)
Files: utmp(4)
Processor Sets: processor_sets(4)psrinfo(1)
Check Out this Related Man Page
psrinfo(1M) System Administration Commands psrinfo(1M)NAME
psrinfo - displays information about processors
SYNOPSIS
psrinfo [-p] [-v] [processor_id...]
psrinfo [-p] -s processor_id
DESCRIPTION
psrinfo displays information about processors. Each physical processor may support multiple virtual processors. Each virtual processor is
an entity with its own interrupt ID, capable of executing independent threads.
Without the processor_id operand, psrinfo displays one line for each configured processor, displaying whether it is on-line, non-interrupt-
ible (designated by no-intr), spare, off-line, faulted or powered off, and when that status last changed. Use the processor_id operand to
display information about a specific processor. See OPERANDS.
OPTIONS
The following options are supported:
-s processor_id Silent mode. Displays 1 if the specified processor is fully on-line. Displays 0 if the specified processor is non-inter-
ruptible, spare, off-line, faulted or powered off.
Use silent mode when using psrinfo in shell scripts.
-p Display the number of physical processors in a system.
When combined with the -v option, reports additional information about each physical processor.
-v Verbose mode. Displays additional information about the specified processors, including: processor type, floating point
unit type and clock speed. If any of this information cannot be determined, psrinfo displays unknown.
When combined with the -p option, reports additional information about each physical processor.
OPERANDS
The following operands are supported:
processor_id The processor ID of the processor about which information is to be displayed.
Specify processor_id as an individual processor number (for example, 3), multiple processor numbers separated by spaces
(for example, 1 2 3), or a range of processor numbers (for example, 1-4). It is also possible to combine ranges and (indi-
vidual or multiple) processor_ids (for example, 1-3 5 7-8 9).
EXAMPLES
Example 1: Displaying Information About All Configured Processors in Verbose Mode
The following example displays information about all configured processors in verbose mode.
psrinfo -v
Example 2: Determining If a Processor is On-line
The following example uses psrinfo in a shell script to determine if a processor is on-line.
if [ "`psrinfo -s 3 2> /dev/null`" -eq 1 ]
then
echo "processor 3 is up"
fi
Example 3: Displaying Information About the Physical Processors in the System
With no additional arguments, the -p option displays a single integer: the number of physical processors in the system:
> psrinfo -p
8
psrinfo also accepts command line arguments (processor IDs):
> psrinfo -p 0 512 # IDs 0 and 512 exist on the
1 # same physical processor
> psrinfo -p 0 1 # IDs 0 and 1 exist on different
2 # physical processors
In this example, virtual processors 0 and 512 exist on the same physical processor. Virtual processors 0 and 1 do not. This is specific to
this example and is and not a general rule.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO psradm(1M), p_online(2), processor_info(2), attributes(5)DIAGNOSTICS
psrinfo: processor 9: Invalid argument
The specified processor does not exist.
SunOS 5.10 21 Feb 2004 psrinfo(1M)