11-14-2006
Quote:
Originally Posted by bishweshwar
it takes the argument as processor id......
how can I know this id....b4 using psrinfo......
Without the processor_id operand, psrinfo displays one line for each configured processor, displaying whether it is on-line, non-interruptible (designated by no-intr), off-line, or powered off, and when that status last changed.
The processor_id is 1, 2, 3 ..etc depending on how many CPU the system has.
If you only have one cpu then it will be psrinfo -v 1
Run psrinfo without a processor_id to list them all.
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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)