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CPU high 90% slow performance after migrating VM's to HYPER-V R2

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  • CPU high 90% slow performance after migrating VM's to HYPER-V R2

    We migrated branch site running Virtual server 2005 with 3 virtual machines all running Window Server 2003. We stopped the VM’s copied to USB external device.
    Reinstalled host with windows 2008 Server R2 Enterprise and add it to VMM Server 2008 R2.
    Once Hyper-V role added by VMM server we imported the VM’s.
    Once the VM could start we uninstalled the VM Additions 13.814 from the guest 2003 servers.
    We mounted the vmguest.iso and installed the Hyper-V guest services.
    Increased the CPU resource of VM’s to 3 GHz Dual core but the CPU processor performance on task manager in VM is so slow we cannot even click on something.

    The performance is terribly slow, CPU performance of VM’s remain above 90%

    Then we build 1 clean new virtual machine with same virtual CPU and memory specs on same host with the above 3 virtual machines and it has no slow performance issue.

    Is there performance problem with migration virtual machines from Virtual Server 2005 to Hyper-V 2008 R2 that somebody can help us with?

    The physical host server specs: IBM 3650
    8 x 2.66 GHz Intel Xeon CPU’s
    18 GB Memory 9.7 GB available
    713 GB storage available (RAID 5 SCSI Internal disks)

    Thanks

  • #2
    Re: CPU high 90% slow performance after migrating VM's to HYPER-V R2

    This sounds like integration component problem. The recommended way is to uninstall Virtual Machine Additions within Virtual Server prior moving into Hyper-V. Also, make sure you change HAL, as Hyper-V supports SMP guests whilst VS supports only single CPU. Here is a Technet article about migration, good read.

    The CPU resource settings are used to determine the cost of the virtual machine in System Center VMM. Changing CPU to bad-ass Xeon does NOT give more CPU power to the guest.

    -vP

    Comment


    • #3
      Re: CPU high 90% slow performance after migrating VM's to HYPER-V R2

      here is more info:

      I used System Center Virtual Machine Manager (VMM) to convert the 3 virtual machines that did run on Virtual Server 2005. the Virtual Machine
      Additions version 13.813 or later was installed. VMM 2008 did not uninstall Virtual Machine Additions, now i unfortuenly do not have a virtual
      server 2005 in branch remote site to uninstall VM additions, that is why i uninstalled it when it started on Hyper-v host
      The hardware abstraction layer (HAL) did upgrade when I installed the integration components “virtual guest services” in VM's by mounting ISO
      vmguest.iso located on local branch Hyper-v host.


      Process information for SRV001020:
      Name Pid Pri Thd Hnd Priv CPU Time Elapsed Time
      Idle 0 0 1 0 0 8:57:32.656 0:00:00.000
      System 4 8 113 1778 0 0:22:39.734 0:00:00.000
      smss 328 11 3 31 148 0:00:00.015 15:44:23.906
      csrss 380 13 15 825 1828 0:00:23.359 15:44:20.359
      winlogon 404 13 21 543 7944 0:00:01.593 15:44:20.202
      services 452 9 17 389 4576 0:01:14.218 15:44:19.874
      lsass 464 9 40 732 11888 0:00:51.750 15:44:19.874
      svchost 684 8 5 87 848 0:00:00.218 15:44:19.796
      svchost 776 8 11 331 1440 0:05:15.093 15:44:19.656
      svchost 832 8 10 146 3824 0:00:07.078 15:44:19.390
      svchost 860 8 14 173 2664 0:00:00.828 15:44:19.390
      svchost 896 8 50 2154 23764 0:09:21.812 15:44:19.374
      spoolsv 1048 8 11 130 3264 0:00:00.890 15:44:18.781
      vmicsvc 1072 8 3 101 2760 0:00:07.343 15:44:18.781
      vmicsvc 1092 8 5 146 6344 0:00:03.875 15:44:18.765
      vmicsvc 1108 8 3 80 2224 0:00:00.015 15:44:18.765
      vmicsvc 1132 8 2 82 2216 0:00:07.078 15:44:18.765
      vmicsvc 1148 8 3 87 2288 0:00:00.000 15:44:18.718
      msdtc 1180 8 18 180 2000 0:00:04.500 15:44:18.406
      svchost 1272 8 2 68 556 0:00:00.000 15:44:17.499
      inetinfo 1380 8 11 205 3732 0:00:07.937 15:44:17.265
      msftesql 1448 8 6 405 3736 0:00:04.906 15:44:16.999
      sqlservr 1500 8 52 861 1598992 0:09:35.218 15:44:16.171
      NTRtScan 1612 8 21 548 15632 0:01:49.843 15:44:14.718
      svchost 1708 8 2 39 304 0:00:00.062 15:44:14.406
      ReportingServicesService 1728 8 18 467 34876 0:01:02.125 15:44:14.140
      sqlwriter 1840 8 3 83 1016 0:00:00.093 15:44:13.562
      wsusservice 1920 8 15 517 43664 0:00:22.593 15:44:13.234
      CcmExec 2120 8 17 1166 19676 0:00:37.625 15:44:09.859
      smsexec 2160 8 72 1308 50076 0:02:00.015 15:44:09.562
      sitecomp 2256 8 3 138 5364 0:00:01.281 15:44:08.859
      smssqlbkup 2308 8 3 93 2760 0:00:00.125 15:44:07.124
      smswriter 2356 8 4 132 3264 0:00:00.062 15:44:06.624
      TmListen 2376 8 22 287 11428 0:00:25.562 15:44:06.499
      svchost 2420 8 16 173 2972 0:00:01.265 15:44:05.687
      svchost 2436 8 6 110 2440 0:00:00.156 15:44:05.546
      svchost 2672 8 26 229 2728 0:00:45.000 15:44:03.234
      CNTAoSMgr 3136 8 5 62 1128 0:00:00.328 15:43:57.796
      w3wp 3192 8 13 212 5300 0:00:05.250 15:43:57.171
      wmiprvse 3364 8 6 135 3116 0:00:01.234 15:43:53.390
      csrss 3696 13 10 130 864 0:00:33.578 15:43:41.468
      winlogon 3728 13 15 272 4924 0:00:02.234 15:43:38.468
      wmiprvse 3856 8 7 250 21864 0:00:02.578 15:43:33.249
      rdpclip 212 8 3 78 992 0:00:00.093 15:43:17.171
      ctfmon 764 8 1 80 480 0:00:00.156 15:43:10.249
      explorer 828 8 9 286 14056 0:01:09.671 15:43:10.249
      wmiprvse 1116 8 7 136 1800 0:00:01.828 15:43:08.374
      PccNTMon 3040 8 8 142 4904 0:02:02.750 15:42:41.202
      taskmgr 2020 13 3 89 1372 0:03:09.453 15:42:38.374
      svchost 3592 8 15 225 2868 0:00:00.234 15:42:31.312
      w3wp 4060 8 28 802 68640 0:00:32.812 15:42:30.202
      w3wp 4388 8 17 251 5364 0:00:02.203 15:41:59.640
      TmProxy 4980 8 11 116 2972 0:00:01.421 15:41:29.374
      logon.scr 5800 4 1 22 384 0:00:04.843 15:33:16.359
      dllhost 4536 8 15 198 2552 0:00:00.812 1:01:12.988
      csrss 4856 13 10 131 1072 0:00:01.328 0:39:04.741
      winlogon 4056 13 14 260 3684 0:00:00.906 0:39:04.586
      rdpclip 2076 8 3 78 996 0:00:00.125 0:38:37.299
      explorer 6020 8 9 292 7720 0:00:03.390 0:38:35.533
      PccNTMon 5996 8 8 141 4896 0:00:06.531 0:38:33.536
      ctfmon 4836 8 1 80 488 0:00:00.046 0:38:33.536
      mmc 3548 8 3 140 7044 0:00:00.296 0:14:07.653
      wmiprvse 4048 8 5 118 1840 0:00:00.000 0:11:03.426
      scrnsave.scr 4680 4 1 19 276 0:00:00.000 0:03:55.328
      cmd 1560 8 1 31 1500 0:00:00.000 0:02:02.203
      pslist 1468 13 1 173 1100 0:00:00.062 0:00:00.078

      The following statement "VMM 2008 uninstalls Virtual Machine Additions, upgrades the hardware abstraction layer (HAL), and installs the
      integration components" in article below did not work,
      http://technet.microsoft.com/en-us/l...8WS.10%29.aspx

      Comment


      • #4
        Re: CPU high 90% slow performance after migrating VM's to HYPER-V R2

        Made interesting discovery, the VM’s that was migrated their HAL in Device Manager Driver version is newer then the newly installed VM that only got SP2 for Win2003. The new VM performance is fine.
        The migrated VM HAL Driver Versions:
        ACPI Uniprocessor PC
        Driver version: 5.2.3790.3959

        New installed VM:
        ACPI Uniprocessor PC
        Driver version: 5.2.3790.1830

        Comment

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