03-05-2016
When running in Dedicated Processor mode - that parition may donate unused cycles to the shared pool. However, when using it's processors CPU1 will always be the exact same physical core, idem for the other three - whatever is assigned when it is activated is what they will be.
When running is Shared Mode only the number of virtual cores is defined. On a system with, e.g., 16 cores activated - while the PHYP will attempt to map virtual to the same physical core (aka Home node) - it is not a requirement - hence the physical core assigned may change (e.g., another LPAR is using it, so rather than wait for it to be free a different core is assigned)
p.s. When donating a core - if a dedicated (processor) partition wants it CPU the borrowing LPAR gets removed immediately by the PHYP.
Hope this explains the basics!
10 More Discussions You Might Find Interesting
1. AIX
How do you turn SMT(symm multi threading).I think that is what it's called.:)
TIA
Mike (2 Replies)
Discussion started by: mcastill66
2 Replies
2. HP-UX
I'm working on a system to monitor a wide-range of Unix platforms, and I'd like to know if HP-UX has anything similar to AIX's SMT (simultaneous multithreading)? If there a way to separate an HP-UX CPU into multiple logical partitions which can then act as multiple CPUs?
Thanks in advance,
Dave (0 Replies)
Discussion started by: DaveZeltserman
0 Replies
3. Programming
I am writing a shared library in Linux (but compatible with other UNIXes) and I want to allow multiple instances to share a piece of memory -- 1 byte is enough. What's the "best" way to do this? I want to optimize for speed and portability.
Obviously, I'll have to worry about mutual exclusion. (0 Replies)
Discussion started by: otheus
0 Replies
4. AIX
How to enable SMT in aix 5.2 ml 9? If i run smtctl it gives error
ksh: smtctl: not found.
please tell me if SMT is supported in 5.2 (4 Replies)
Discussion started by: vjm
4 Replies
5. Solaris
How does capped-memory work in zones?
I have 32G of memory and 10 zones.
I want about physical=4G and swap=4G in each zone.
Is this possible? I am going over the 32G. (1 Reply)
Discussion started by: photon
1 Replies
6. 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
7. Solaris
Calling upon all Solaris zone experts.
I have a Sun T3-1 that is running a few whole-root zones. I've set the 'capped-memory' setting on all the zones.
However, I have a problem on the one zone. Under load it uses more memory that has been allocated to it.
zonecfg -z sunrep02 export
... (4 Replies)
Discussion started by: soliberus
4 Replies
8. Programming
Hello.
I am new to this forum and I would like to ask for advice about low level POSIX programming.
I have to implement a POSIX compliant C shared library.
A file will have some variables and the shared library will have some functions which need those variables.
There is one special... (5 Replies)
Discussion started by: iamjag
5 Replies
9. Solaris
Is there a way to find the capped memory of a solaris non global zone from the non global zone itself (given rcapd is disabled) (6 Replies)
Discussion started by: CuriousDev
6 Replies
10. 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
LEARN ABOUT SUSE
xfce4-power-manager
XFCE4-POWER-MANAGER(1) General Commands Manual XFCE4-POWER-MANAGER(1)
NAME
xfce4-power-manager - The Xfce 4 Power manager
SYNOPSIS
xfce4-power-manager [options]
DESCRIPTION
xfce4-power-manager manages the power sources on the computer and the devices that can be controlled to reduce their power consumption
(such as LCD brightness level, monitor sleep, CPU frequency scaling). In addition, xfce4-power-manager provides a set of freedesktop-com-
pliant DBus interfaces to inform other applications about current power level so that they can adjust their power consumption, and it pro-
vides the inhibit interface which allows applications to prevent automatic sleep actions via the power manager; as an example, the operat-
ing system's package manager should make use of this interface while it is performing update operations.
You can run xfce4-power-manager from the command line without specifying any extra arguments.
OPTIONS
--no-daemon
Starts the power manager in non-daemon mode: useful for debugging.
--restart
Causes the running power manager to restart.
--customize
Shows the configuration dialog.
--quit Causes any running instance of xfce4-power-manager to exit.
BUGS
Please report any bugs to http://bugzilla.xfce.org/. Development discussion should be conducted on the goodies-dev@xfce.org mailing list.
Usage related questions should be directed to the xfce@xfce.org mailing list.
HOMEPAGE
http://goodies.xfce.org/
AUTHOR
Ali Abdallah <aliov@xfce.org>
MANPAGE AUTHORS
Ali Abdallah <aliov@xfce.org>, Robby Workman <rworkman@slackware.com>.
31 March 2009 Version 0.8.0 XFCE4-POWER-MANAGER(1)