12 Replies Latest reply: Sep 26, 2015 2:39 PM by Bill Markham RSS

    How much bandwidth does QlikView use?

    Karl Pover

      Hi all,

      Does anybody know how much bandwidth QlikView can use? Is there a way to limit it?

      Thanks,

      Karl

        • How much bandwidth does QlikView use?
          Rob Wunderlich

          Do you mean network bandwidth? There is a QVS setting "Compress network traffic" (on by default I think) that will reduce the load on the network.

          -Rob

            • How much bandwidth does QlikView use?
              Karl Pover

              Thanks for replying, Rob.

              I am talking about Network bandwidth and I've seen in the forum references to the option to compress network traffic, but my question is not based on a problem that QlikView is too slow; but rather, a request from 2 customers who are doing a sizing analysis of QlikView.

              There is a format to estimate the RAM or CPU necessary to support a certain data source size or number of users, but the customers also want to know how much network bandwidth to dedicate to QlikView.

              For example, SAP might tell them 32 K o 128 K per concurrent user. Has anybody done any tests to see what is a good network bandwidth per user for the QlikView Plugin or AJAX?

              Thanks for the help.

                • How much bandwidth does QlikView use?

                  Hi Karl, did you every get an answer to this question? I have been asked the same question, usually from the IT department of an organisation....

                  • Re: How much bandwidth does QlikView use?
                    Nayankumar Patel

                    Same Question asked by Customer

                    Please let me know.

                      • Re: How much bandwidth does QlikView use?
                        Teppo Ojala

                        Hi all, Same question - but about Sense. do we have any reference values about how much Qlik Sense uses bandwidth in normal usage? For example, if user does one selection in the sheet that contains 4-6 objects, how much data will be transferred between end user device and Sense server.

                         

                        Thanks in advance,

                         

                        Teppo

                          • Re: How much bandwidth does QlikView use?
                            Karl Pover

                            Hi Teppo,

                             

                            No answer yet, but I'll see if I can get an answer next week at the Masters Summit.

                             

                            Best, Karl

                              • Re: How much bandwidth does QlikView use?
                                Bill Markham

                                Assuming the question is re network traffic from web browser to QlikView Web Server then the answer is [hopefully] not very much, but it will be bursty.  On initially opening a qvw you'll get a surge as the initial html [/xml] transmits to paint the screen. Not much for a nice clean layout, loads if stuffed with hi res graphics.  Same when navigating between tabs. Not too much when making selections, unless that causes a hi res graphic to be transmitted. Nothing if the user is just contemplating the dashboard or gone to make a coffee.

                                 

                                To give a precise figure is a bit like estimating the length of a piece of elastic being played with in a dark room.  But one could guess at maybe 10 to 100 Kb/sec.  But I would not wager money on that.

                                 

                                Sense could well be more, but it would depend on the visualization extensions used. The data hypercube is transmitted as JSON to be visualized in the client web browser based javascript.  So it all depends on the hypercube design, your data and selections...........

                                 

                                ..... but a damn sight less than somebody watching cat videos on YouTube.

                                  • Re: How much bandwidth does QlikView use?
                                    Teppo Ojala

                                    Thanks Bill.

                                     

                                    I agree with you. The amount of data is small compared to youtube videos etc. But this is not an answer my customer is satisfied They would like to know if their line will be a bottle neck or not, if the usage of Sense would be company wide and hopefully quite active at the same time.

                                     

                                    As written to Karl - could we some how test this one? I am stupid when talking about network technologies, but would it be possible to measure some key actions for example by using some of our own demo from demo site?

                                     

                                    Thanks,

                                     

                                    Teppo

                                      • Re: How much bandwidth does QlikView use?
                                        Karl Pover

                                        I agree with Bill, and I've never had any problems with QlikView breaking a customer's network.  However, I created this post so many years ago because I had the same situation with a customer that wanted to know exactly how much bandwidth should be dedicated to QlikView.  Again, I deal with several SAP customers and SAP does give them a recommendation.  I have no doubt IT departments that use SAP are unnecessarily difficult ot work with, but also Qlik has been slow in giving hardware and network recommendations.  They started giving hardware recommendation a couple years ago, so let's see if they are comfortable doing the same for the network recommendations.

                                         

                                        Karl

                                    • Re: How much bandwidth does QlikView use?
                                      Teppo Ojala

                                      Thanks Karl,

                                       

                                      It would be great to give some average numbers. For example using some of our demos from demo site as an example.

                                       

                                      - Opening a document = xxx

                                      - One selection = yyy

                                      - Changing a sheet = zzz

                                       

                                      This way we could estimate something. Thanks in advance,

                                       

                                      Teppo

                            • Re: How much bandwidth does QlikView use?

                              Hi Karl,

                               

                              I´m also looking for that answer, did u get any feedback?

                               

                              Best regards

                               

                              Nelson Villarreal