Results 1 to 4 of 4

Thread: RHEL 5 low performance on AMD Opteron Processor

  1. #1
    Junior Member
    Join Date
    Mar 2009
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Default RHEL 5 low performance on AMD Opteron Processor

    Hi,

    We have HP DL385 server with AMD OPteron processor loaded with RHEL 5 X64. We are facing CPU utilization issue.

    Whenever we run any app or shell and execute any command CPU utilization is high and runs on only one core at any given point. Load keep changing between all cores.

    Any help greatly appreciated.

    Thanks
    SNN

  2. #2
    Never say die nixcraft's Avatar
    Join Date
    Jan 2005
    Location
    BIOS
    Posts
    4,498
    Thanks
    17
    Thanked 789 Times in 507 Posts
    Rep Power
    10

    Default

    Do you have SMP kernel loaded? Run the following command to verify that you have SMP kernel loaded:
    Code:
    umame -a
    All [Solved] threads are closed by mods / admin to avoid spam issues. See Howto mark a thread as [Solved]


  3. #3
    Junior Member
    Join Date
    Mar 2009
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    Default

    The kernel version is Linux 2.6.18-53.el5xen

  4. #4
    Never say die nixcraft's Avatar
    Join Date
    Jan 2005
    Location
    BIOS
    Posts
    4,498
    Thanks
    17
    Thanked 789 Times in 507 Posts
    Rep Power
    10

    Default

    Did you saw SMP as output in above command?

    Whenever we run any app or shell and execute any command CPU utilization is high and runs on only one core at any given point. Load keep changing between all cores.
    This is normal. Use a better tool for monitoring cpu load such as atop:
    Code:
    atop
    All [Solved] threads are closed by mods / admin to avoid spam issues. See Howto mark a thread as [Solved]


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. performance monitoring with example
    By ghpradeep in forum CentOS / RHEL / Fedora
    Replies: 1
    Last Post: 19th May 2008, 11:12 PM
  2. apache performance
    By kasimani in forum Web servers
    Replies: 2
    Last Post: 15th May 2008, 04:22 PM
  3. PHP code performance
    By zafar466 in forum Linux software
    Replies: 1
    Last Post: 22nd April 2007, 08:23 PM
  4. PHP Form Processor
    By Brandon27 in forum Coding in General
    Replies: 0
    Last Post: 22nd April 2007, 01:20 PM
  5. regarding server performance
    By lovewdhwa in forum Linux software
    Replies: 1
    Last Post: 21st September 2006, 01:42 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •