Load Generator vs Controller at different network location

Hello Experts,

1)Is it advisble to have Controller machines and Load generator machines are different geo graphical locations and under different network?

2)Our Client has LG's moved to calif and users are in NY. At this moment our client is not willing to purchase any additional licenses for NV or other tool. So in this case i have asked our client not to move the LG machines to Calif and keep them at NY to simulate real user behavior. Is this this correct approach?

  • Verified Answer

    Hi Nik,

    Please see my reply inline

    Thanks,

    Shlomi

    _0315000 wrote:

    Hello Experts,

    1)Is it advisble to have Controller machines and Load generator machines are different geo graphical locations and under different network? [Shlomi]  LoadRunner supports locating Load Generators in different geo locations. While it is better locating them in the same location it is not supposed to be a showstopper. The customer just need to make sure the network does not have too long delays and can sustain the results transfer across the locations.

    2)Our Client has LG's moved to calif and users are in NY. At this moment our client is not willing to purchase any additional licenses for NV or other tool. So in this case i have asked our client not to move the LG machines to Calif and keep them at NY to simulate real user behavior. Is this this correct approach? [Shlomi] the best practice is to simulate load from the same location the real users are going to come from. 

     


     

  • Thank you Shlomi. 

    Regarding point2(the best practice is to simulate load from the same location the real users are going to come from. ), is there any recommendation documented, so that we can refer to our client as HP recommendation and proceed from there.

  • HI,

    There is no written recommendation that I know off. It is common knowledge among performance engineers.

    Maybe can find the rationale for that HPE NV online help pages (check also the Video)

    I am not suggesting to purchase NV, I do suggest to locate the Load Generators closer to the application under tests

    Regards,

    Shlomi

  • HI,

    There is no written recommendation that I know off. It is common knowledge among performance engineers.

    Maybe can find the rationale for that HPE NV online help pages (check also the Video)

    I am not suggesting to purchase NV, I do suggest to locate the Load Generators closer to the application under tests

    Regards,

    Shlomi

  • As an NV advocate :) I will bring to your attention some problems you might encounter when testing across the real network instead of with NV. Even though the use case you are describing (all the users are desktop users connecting from NY) is relatively simple network conditions-wise.

    See page 8 in https://www.hpe.com/h20195/V2/GetPDF.aspx/4AA6-5788ENW.pdf 

     

    In case you are not familiar with it by the way, NV also provides recommendations for optimizing the performance of HTTP/S based applications (NV Insights).

     

    Regards,

    Yaron