05-09-2013
Well, I will try and write it again. Trying to answer something complex just before dinner is poor timing. And this is complex stuff. I travel all around Europe to look at systems and explain how to modify configurations to increase overall system utilization. - read - not an easy subject for a forum - a "whitepaper" and/or a presentation is better.
However, read the man page and/or google on lbusy. The IBM infocenter should at least say something.
Also look at physc (which is actually a count of the msec used (/10), not the actual # of (virtual) processors used.
For your specific question I would like to ask you to look at the output of sar -P ALL - and see if it already answered for you.
Post your remaining questions, also include what this is for (if I understand your objective I can give a better answer, otherwise it tends to become technical (nerdy) mumbo-jumbo).
7 More Discussions You Might Find Interesting
1. Solaris
Dear All,
We are going for Disaster Recovery project, the vendor asked for more details about how much is the daily data changes only. using sar / iostat can any one help me to collect this ?!
Note: only I need the changed data size not the daily increasing data. this is to know how much... (1 Reply)
Discussion started by: adel8483
1 Replies
2. What is on Your Mind?
Hi,
I got 2 courses Intermediate and advanced Solaris 10 Administration before 1 month.
I was studying the material of the 1st course I will finish it soon. I want to get the Exam. What is your advice?
Which is the best Exam Quastion ( Testking or ,,,,,,,, Etc) ....
Regards (1 Reply)
Discussion started by: adel8483
1 Replies
3. AIX
Hi All,
What do you usually use for capacity planning on AIX?
Any idea will do?
Thanks in advance,
itik (1 Reply)
Discussion started by: itik
1 Replies
4. Solaris
Hi All,
What do you usually use for capacity planning tool on solaris 8 or later?
Thanks in advance. (2 Replies)
Discussion started by: itik
2 Replies
5. AIX
Hi all,
I have the following configuration
2 ds3524 storage disk systems located over 2 locations
2 P720 server located over 2 locations
DS3524 are connected to san switch.
Each vio server has 1 fc adapter attached to a san switch.
per p720 server 2 virtual io servers. Vio 1 has 1 lun... (2 Replies)
Discussion started by: markiemark
2 Replies
6. AIX
There can be configurations in IBM Server wherein a
standalone partition is created on some supported IBM Server
Or
A VIOS - VIOC LPARs created.
Now in both cases they are lpars. But if I want to differentiate b/w a standalone LPAR vs an VIOC LPAR how can I do..?
On a... (2 Replies)
Discussion started by: Manish00712
2 Replies
7. AIX
can anyone tell me how to reduce Fs capacity by using echo zero. (3 Replies)
Discussion started by: nkchand
3 Replies
CHCPU(8) User Manuals CHCPU(8)
NAME
chcpu - configure CPUs
SYNOPSIS
chcpu [-e] [-d] [-c] [-g] cpu-list
chcpu [-p] mode
chcpu -r
chcpu [-h] [-V]
DESCRIPTION
chcpu can modify the state of CPUs. It can enable or disable CPUs, scan for new CPUs, change the CPU dispatching mode of the underlying
hypervisor, and request CPUs from the hypervisor (configure) or return CPUs to the hypervisor (deconfigure).
Some options have a cpu-list argument. Use this argument to specify a comma-separated list of CPUs. The list can contain individual CPU
addresses or ranges of addresses. For example, 0,5,7,9-11 makes the command applicable to the CPUs with the addresses 0, 5, 7, 9, 10, and
11.
OPTIONS
-r, --rescan
Trigger a rescan of CPUs. Use this option on systems that do not automatically detect newly attached CPUs. The Linux kernel then
recognizes the new CPUs.
-c, --configure cpu-list
Configure all specified CPUs. Configuring a CPU means that the hypervisor takes a CPU from the CPU pool and assigns it to the vir-
tual hardware on which your kernel runs.
-e, --enable cpu-list
Enable all specified CPUs. Enabling a CPU means that the kernel sets it online. A CPU must be configured, see -c, before it can be
enabled.
-p, --dispatch mode
Set the CPU dispatching mode (polarization). This option has an effect only if your hardware architecture and hypervisor support
CPU polarization. Available modes are:
horizontal The workload is spread across all available CPUs.
vertical The workload is concentrated on few CPUs.
-d, --disable cpu-list
Disable all specified CPUs. Disabling a CPU means that the kernel sets it offline.
-g, --deconfigure cpu-list
Deconfigure all specified CPUs. Deconfiguring a CPU means that the hypervisor removes the CPU from the virtual hardware on which
the Linux instance runs and returns it to the CPU pool. A CPU must be offline, see -d, before it can be deconfigured.
-h, --help
Display help information and exit.
-V, --version
Display version information and exit.
AUTHOR
Heiko Carstens <heiko.carstens@de.ibm.com>
COPYRIGHT
Copyright IBM Corp. 2011
SEE ALSO
lscpu(1)
AVAILABILITY
The chcpu command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util-
linux/>.
Linux June 2012 CHCPU(8)