NSS and VMFS performance OES2 SP1

Earlier I blogged about the performance of NSS on VMFS.
You can read the result from that test over here.

Now I tested it also with SP1 for OES2 to see if the performance is better.

Sequential Output (nosync) Sequential Sequential Input
Per Char Per Block Rewrite Per Char Per Block 04K -3
MB K/Sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
SLES10 SP2(VMI) NSS on VMFS 6000M 11860 35,4 18398 1,3 14309 9,6 15424 62,8 25728 20,4 145,4 0,7

As you can see the performance is a bit better, but not nearly the performance when you use a RDM. So the conslusion is still the same. If you want to use NSS in Vmware ESX. Use a RDM for your NSS partition.

About Michael

Michael Wilmsen is a VMware training/consultant (no specific order) with more than 15 years in the IT industry. Main focus is VMware vSphere, Horizon View and Site Recovery Manager with a deepdive to performance.
Michael is VCDX 210, VCAP 4/5 certified, has been rewarded with the vExpert title from 2011, is a PernixPro, Nutanix Tech Champion and a Nutanix Platform Professional.

8 Comments to “NSS and VMFS performance OES2 SP1”

  1. By Charles, May 2, 2009 @ 14:58

    I have run these same tests in our environment with OES2 SP1, ESXi Update 4, and an EqualLogic array and the numbers for VMFS based and RDM based volumes are the same.

    • By Mike, May 5, 2009 @ 15:06

      Ok, Nice!
      Did you test this with ISCSI or Fiber?
      Can you give me the numbers of bonnie? I’m really interested in those numbers.

  2. By Charles, May 2, 2009 @ 14:58

    I have run these same tests in our environment with OES2 SP1, ESXi Update 4, and an EqualLogic array and the numbers for VMFS based and RDM based volumes are the same.

    • By Mike, May 5, 2009 @ 15:06

      Ok, Nice!
      Did you test this with ISCSI or Fiber?
      Can you give me the numbers of bonnie? I’m really interested in those numbers.

  3. By Charles, May 7, 2009 @ 23:36

    iSCSI using software initiator.

    NSS(VMFS)

    —Sequential Output (nosync)— —Sequential Input– –Rnd Seek-
    -Per Char- –Block— -Rewrite– -Per Char- –Block— –04k (03)-
    Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
    oes2test 6000 33724 82.2 35049 27.3 26426 33.1 22433 83.3 50318 58.3 392.1 9.2

    NSS(RDM)

    —Sequential Output (nosync)— —Sequential Input– –Rnd Seek-
    -Per Char- –Block— -Rewrite– -Per Char- –Block— –04k (03)-
    Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
    oes2test 6000 34212 74.1 33871 28.2 23432 31.3 25322 82.3 49716 59.3 395.8 8.6

    • By Mike, May 8, 2009 @ 07:45

      Hi,

      Great! Thanks for the results. Next week I’m giving a session at a Congres in the Netherlands called Novellcongres.nl. This is the subject I’m going to talked about.
      You confirm my testes. Althoug a Eqlogic is scalled lower than a Netapp. The performance with ISCSI and NSS is better!

      Next week I will ask the crowd to test there performance on there SAN with Bonnie and upload the results to here. So keep coming back.

  4. By Charles, May 7, 2009 @ 23:36

    iSCSI using software initiator.

    NSS(VMFS)

    —Sequential Output (nosync)— —Sequential Input– –Rnd Seek-
    -Per Char- –Block— -Rewrite– -Per Char- –Block— –04k (03)-
    Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
    oes2test 6000 33724 82.2 35049 27.3 26426 33.1 22433 83.3 50318 58.3 392.1 9.2

    NSS(RDM)

    —Sequential Output (nosync)— —Sequential Input– –Rnd Seek-
    -Per Char- –Block— -Rewrite– -Per Char- –Block— –04k (03)-
    Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
    oes2test 6000 34212 74.1 33871 28.2 23432 31.3 25322 82.3 49716 59.3 395.8 8.6

    • By Mike, May 8, 2009 @ 07:45

      Hi,

      Great! Thanks for the results. Next week I’m giving a session at a Congres in the Netherlands called Novellcongres.nl. This is the subject I’m going to talked about.
      You confirm my testes. Althoug a Eqlogic is scalled lower than a Netapp. The performance with ISCSI and NSS is better!

      Next week I will ask the crowd to test there performance on there SAN with Bonnie and upload the results to here. So keep coming back.

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