Topic
IC4NOTICE: developerWorks Community will be offline May 29-30, 2015 while we upgrade to the latest version of IBM Connections. For more information, read our upgrade FAQ.
1 reply Latest Post - ‏2009-08-10T12:26:53Z by SystemAdmin
SystemAdmin
SystemAdmin
706 Posts
ACCEPTED ANSWER

Pinned topic How to modify /proc/ppc64/lparcfg field values on a power6 RHEL 5.3 machine

‏2009-08-10T11:14:25Z |
Hi All,

I am trying to modify p series linux performance parameters following the below link -
http://www.ibm.com/developerworks/wikis/display/LinuxP/Understanding+Linux+on+Power+performance

In the end of the link, it mentions that the fields like shared_processor_mode and capped are to be set to 0 and 1 respectively for performance. But, I am not able to modify that file directly opening in vi editor. The change is not saved anyhow.

Is there any alternative way to change this file fields and how can it be done?

After the change is done, does the machine requires reboot?

Thanks,
sk
Updated on 2009-08-10T12:26:53Z at 2009-08-10T12:26:53Z by SystemAdmin
  • SystemAdmin
    SystemAdmin
    706 Posts
    ACCEPTED ANSWER

    Re: How to modify /proc/ppc64/lparcfg field values on a power6 RHEL 5.3 machine

    ‏2009-08-10T12:26:53Z  in response to SystemAdmin
    The values from "lparcfg" simply reflect the definition of your partition.

    The partition is defined by the HMC (or in some cases the IVM).

    Once you change the values from the HMC, the partition will need to shutdown and re-started.

    Check out this Redbook for more details..