[kernel] HD vs CPU performance and rescources

Discussion in 'Proxmox VE 1.x: Installation and configuration' started by jmjosebest, Aug 16, 2010.

  1. jmjosebest

    jmjosebest Member

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    Hello,

    I have always noticed that when you compress a file or making vzdump do a negative impact on overall system performance, making bottleneck between the CPU and hard drive.
    This is so the server is down with 75% -90% io wait.

    For some time I am using RHEL virtual machines and this problem still existed, until he had this kernel update:
    http://wiki.openvz.org/Download/kernel/rhel5/028stab069.6

    The problem has been solved!
    when I do a vzdump CPU consumption is 25-30% io wait.

    We have some information to do the same in Proxmox?

    Thanks!!
     
    #1 jmjosebest, Aug 16, 2010
    Last edited: Aug 17, 2010
  2. dietmar

    dietmar Proxmox Staff Member
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    There are serious problem with KVM on newer 2.6.18 openvz kernels - we will release a new one as soon as those problems gets solved.
     
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  3. bohansen

    bohansen Member
    Proxmox VE Subscriber

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    Also this one? It seems just to be a bug fix release on top of the 2.6.18-194.3.1 kernel.
     
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