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Performance issues with XenTools newer then 6.5.1 on XenServer 7.0

Started by Michael Meiser , 08 February 2017 - 10:49 AM
4 replies to this topic

Michael Meiser Members

Michael Meiser
  • 3 posts

Posted 08 February 2017 - 10:49 AM

Hello together,

 

we have performance issues if we install newer XenTools then 6.5.1 on our XenServer 7.0.

Our XenServer are patched to Hotfix Version 004. I tested different XenTools Versions up to the newest management Agent Version and every time the performance is much slower then before the upgrade.

 

Following scenarios we have:

 

VM1: XenTools 6.5.1

VM2: XenTools 6.5.1

Copy a file from VM1 to VM2: 200MB/sec

Copy a file from VM2 to VM1: 200MB/sec

 

 

VM1: XenTools 6.5.1

VM2: XenTools 7.0.0

Copy a file from VM1 to VM2: 100MB/sec

Copy a file from VM2 to VM1: 200MB/sec

 

VM1: XenTools 7.0.0

VM2: XenTools 7.0.0

Copy a file from VM1 to VM2: 100MB/sec

Copy a file from VM2 to VM1: 100MB/sec

 

 

It doesn´t matter from which VM i initiate the transfer.

And we have this problem on different VMs with different operationg systems.

 

Next step i will do is to update all XenServer Hosts with all released hotfixes.

 

What else can i try, is there someone with similar problems?

 

Greetings,

 

Michael

 

 

 



Michael Meiser Members

Michael Meiser
  • 3 posts

Posted 09 February 2017 - 09:10 AM

Additional Infos:

 

It´s not only the performance over ethernet, the overall performance of the VM is way slower then with the 6.5.1 XenTools.

 

Also i´ve managed to get 6.5.1 version of XenServer Drivers working under Server 2016 (Thought i HAD TO use the newest drivers under 2016, but 6.5.1 drivers are also working). Beside that the neweset Management Agent is running. I think, that this is a highly unsupported situation, but all my VMS runs soooooooo much better with this configuration. It is like doubling the performance.



Michael Meiser Members

Michael Meiser
  • 77 posts

Posted 15 February 2017 - 02:52 PM

Today we installed all available hotfixes on our XenServer7. Problem still exists. Still no reply on this thread so it seems we are the only one facing this issue... maybe it has something to to with our hardware the xenserver are running on.

 

Greetings, Michael



Alan Lantz Members

Alan Lantz
  • 6,562 posts

Posted 15 February 2017 - 03:46 PM

I've not noticed that, but yes it could be hardware specific. 

 

--Alan--



Boby John Members

Boby John
  • 703 posts

Posted 16 February 2017 - 04:28 PM

It would be interesting to know the behaviour on a Centos VM , this would help us in isolating the problem