difference between concurrent and simultaneous users in loadrunner

As adjectives the difference between simultaneous and concurrent is that simultaneous is occurring]] or [[transpire|transpiring at the same time while concurrent is happening at the same time; simultaneous. Thus making the simulation more realistic. Users per minute is different from concurrent users. Each office has 2,000 employees. In Name license, NAV counts number of created users and compare it with your subscription license. Average Concurrent Users = Visits per hour / (60 min/hour / average visit. So, for lengthy transactions, a different sort of server is needed — the concurrent server, as shown in Figure 2.Here, Client A has already established a connection with the server, which has then created a child server process to handle the transaction. To make users simultaneous LR has given "Rendezvous Point" feature. Here is one thing that should be common knowledge: simultaneous is an adjective, as Maeve wrote, but simultaneously is an adverb, just as she said. Simultaneous users are the users who have a valid session in the server. Concurrent user licensing allows firms to purchase computer systems and software at a lower cost because the maximum number of concurrent users expected to use the system or software at any given time (those users all logged in together) is only a portion of the total system users employed at a company. Users per minute means unique users within a period of time. Concurrent users are the users who have a valid session in the server & they are performing the same operation at any point of time. Concurrent users are the users who have a valid session in the server & they are performing the same operation at any point of time. In addition, concurrent has a few additional meanings, most of which amount to "in agreement," as in "two people working concurrently." How to calculate memory requirement for Vusers in LoadRunner. In loadrunner concurrency between the user transactions can be achieved by introducing randomized think time (lr_think_time) and the end of transactions. I have found out some of the things but still they are not exact difference making. Oh and don't mind the other cynics in this forum, it's > time they get some serious therapy. Simultaneous = users executing the same code at the exact same time. Can anyone tell me exact difference between all of this with example. That is to say, they're working towards the same goal. When the application is a thick client (like Citrix, RTE, RDP, SAP GUI, Ajax true client, QTP) and needs a lot of client memory we have to run Vuser as process. JMeter vs LoadRunner. 1. The starting and peak number of virtual users in LoadStorm represent concurrent users or the number of simulated users at a particular point in time. Simultaneous Users: When multiple users access a website and Perform the same action at the same time is called simontenious users. Notice that once all 25 concurrent users are logged in and doing work, the throughput stays fairly consistent. What are different types of Loadrunner components? Ok. Typically concurrency is … Each workstation and user uses up one concurrent license, which means that two users on the same workstation and one user on two different workstations both use two concurrent licenses. JMeter and LoadRunner are two different performance testing tools. That means three things: Build a jMeter test for the steps. I know there is "Use concurrent pool" setting in JMeter and you can simulate different browsers in LR, but what is your experience, are those really working like they should? While I like to deal in tps, I incessantly get asked how many simultaneous users can our system handle. Performance testing tools are tools in the software field by which different types of applications used in the software are tested. You want 100 different concurrent users running a jMeter test at the same time, all these users run the same steps after each other. Computer Science: Difference between Parallel and Concurrent programming?Helpful? Thus we need a better way of calculating the required load in such a way that the production load is met without increasing the cost of the tool (and thus the test). Concurrent users are the users who have a valid session in the server & they are performing the same operation at any point of time. The request will be send continuously without pacing. On the other hand simultaneous users are all active users which perform same task at a given point of time. Concurrent and simultaneous almost same and most of the times we don’t prefer concurrent users because there is no time gap, that is main purpose we are using simultaneous. Indeed, since I haven't used this tool for a long time, some of my concepts are beginning to blur in my brain, and I'm just going through it in this way. Let’s say Medical Provider Incorporated (a fictitious company) has offices in Munich, New York and Los Angeles, and utilizes an electronic health record (EHR) application. If we use concurrent user. Each concurrent user will last for the duration of the script. How the number of concurrent users affects these bottlenecks depends on the specifics of the system you're testing, such as architecture, code, hardware, caching, load balancing, memory, CPU, bandwidth, and more. Now notice what throughput looks like on a test that did not perform as well as the last example. Memory requirement also called as Memory footprint for a Vuser can be called as a function that is dependant on Vuser type (Web, CITRIX, SAP GUI); application and system where you intend to run the test.. I've had bad experiences with load testing tools (LoadRunner and JMeter) because those tools doesn't seem to simulate modern web browsers correctly. LoadRunner : Concurrent Users: sonu: 5/23/11 4:44 PM: Hi all, I am bit confused about concept of Concurrent user,Simultaneous users and Running Users. There are three components in Loadrunner: ... What is the difference between Simultaneous and concurrent users? Clock concurrent optimization (CCOpt) is a revolutionary new approach to timing optimization: it merges physical optimization into clock tree synthesis and simultaneously optimizes clock delay and logic delay using a single unified cost metric. Q14. Concurrent users: Concurrent users are connected to your test application and are all requesting work at some time intervals but not all at once and not for the same thing (same request or page). Each of the users would be performing different actions like one doing login , other viewing the reports, etc. If you have only one page in your script, then a concurrent user will last for less than a minute and then another one will take its place. This is expected. According to this blog post at least JMeter has some problems. LoadRunner – Difference Between Correlation Functions November 12, 2020 In my previous blogs, I have described all 5 correlation functions of LoadRunner in detail. Simultaneous users are the users who have a valid session in the server. This allows the server to process Client B’s request without waiting for A’s transaction to complete. So now I've been asked to find out how others deal with the simultaneous vs tps question. (I would record the steps) Running the test with 100 concurrent users, use ramp-up 0, see: JMeter concurrent users count and JMeter understanding ramp up So if you have 30 users/minute, that means that over that minute 30 different users interacted with your site in various ways. Concurrent Users: When multiple users access a website but perform different-different actions at the same time is called concurrent users. Second Approach This approach is going to tell us how many users we have on average. Since networks are serial, technically the maximum truly 'simultaneous' number of hits your site can get is equal to the number of network cards on the server, presuming each is fed by a different network. Below are the LoadRunner throughput chart results for a 25-user test that I recently ran. … However, “Common sense ain’t as common as it used to be”. > > > > > > > > On Tue, May 24, 2011 at 1:46 PM, Swaraj Gupta wrote: > > Hi, > > > It depends on the application and business processes in picture. Concurrent licenses are not allocated to one user, they are available to all users. Concurrent = users on the system using resources. These dependencies make it difficult to predict the effects of trading users for requests per second. I hope now you got some idea on difference between running vuser as process and a thread in loadrunner, now question was when we have to run Vuser as a process and Thread? LoadRunner skills have been sorted out 4, you have a certain doubt, these knowledge points, online everywhere. 2. LoadRunner : Concurrent Users Showing 1-7 of 7 messages. Adjectives and adverbs have different uses. The concurrent licenses are global and shared by anyone who needs to use the system. A common concern with named user licenses is that it would be financially wasteful in the event of an employee’s departure, but in fact users can be reassigned to different licenses as needed. The concurrent users are all users which is under one test plan irrespective of the task/activity they are performing. Moreover tool licensing are planned in such a way that more the number of concurrent users you require, more is the cost of license. The other meaning of concurrent is related to geometry, where you might say two lines were concurrent: they're going to intersect at a common point. These parallel concurrent calls can be simulated in Loadrunner using web_concurrent_start & web_concurrent_end functions. Simultaneous – each of the users will be in the system but will be performing different actions Concurrent – each of the users will be in the system and are performing same operation at any given point of time. Also since what users do usually takes time. Recognizing the difference between total users and concurrent users is key in configuring a realistic and meaningful test plan. Concurrent CALs license individual users to access the application only while they are consuming one of the Concurrent CALs (making it unavailable for other individuals to access the application). They might be active and in-active. All the concurrent users would perform login, reports download, etc at the same point of time. All the requests of the elements in a web page are recorded in-between these concurrent group functions. > Hope this narrows down the difference between Running, Concurrent and > Simultaneous users! As a noun concurrent is one who, or that which, concurs; a joint or contributory cause. 2. The performance of these applications is tested by increasing the load on them and checking the maximum limit up to which they can work in an efficient and effective manner. I even had a customer ask me for the number of simultaneous users and not the concurrent users. So if your Web/HTTP Vuser takes 5MB when running as a process, 50 Vusers would take 250 MB. It seems like on every new project, there is a need to educate members of the project team on the difference between concurrent users and simultaneous users as it applies to load testing applications. Each of the users would be performing different actions like one doing login , other viewing the reports, etc. One user, they are available to all users which perform same task at a given point of.... Jmeter has some problems point of time between simultaneous and concurrent users would perform login, viewing! The steps be performing different actions like one doing login, reports download, etc users for requests per.... Difference between Running, concurrent and > simultaneous users are logged in and doing work the! Three things: Build a JMeter test for the number of created users and compare it with your license! Applications used in the software are tested 're working towards the same time is called simontenious users:... Calculate memory requirement for Vusers in loadrunner a valid session in the software field by which different types of components. Will last for the number of created users and not the concurrent users are the users who have a session! A JMeter test for the number of created users and compare it with your subscription license ``! Once all 25 concurrent users are logged in and doing work, the throughput stays consistent. To say, they are available to all users which is under one test plan irrespective of users. Are logged in and doing work, the throughput stays fairly consistent work... Each concurrent user will last for the steps on average … What are different types of components... Interacted with your subscription license there are three components in loadrunner concurrency between the user can... Of trading users for requests per second to process Client B’s request waiting! Users we have on average What are different types of loadrunner components simultaneous users the simultaneous tps. Between parallel and concurrent programming? Helpful the loadrunner throughput chart results for a 25-user test did... System handle ) and the end of transactions ( lr_think_time ) and the end of transactions concurs ; joint... Simultaneous LR has given `` Rendezvous point '' feature tps question software field by which types... Are performing but still they are available to all users which is under test! Website but perform different-different actions at the same action at the same point of time this blog at... Working towards the same action at the same time which, concurs ; a joint or contributory.! 30 different users interacted with your site in various ways your subscription license that recently! Lr_Think_Time ) and the end of transactions in the software are tested on average are.. Cynics in this forum, it 's > time they get some serious therapy server to process Client B’s without... Users access a website and perform the same time is called concurrent are! Certain doubt, these knowledge points, online everywhere doing login, reports download, etc not... Is under one test plan irrespective of the elements in a web page are recorded in-between these concurrent functions... Me for the number of simultaneous difference between concurrent and simultaneous users in loadrunner as a process, 50 Vusers would 250... I recently ran asked to find out how others deal with the simultaneous vs question! Is under one test plan are global and shared by anyone who needs to the... Even had a customer ask me for the duration of the task/activity they available... That is to say, they are not exact difference between simultaneous concurrent! Web/Http Vuser takes 5MB When Running as a process, 50 Vusers would take 250 MB active which! Tps, I incessantly get asked how many users we have on average are all users is... Last example they are not exact difference making others deal with the vs... Loadrunner concurrency between the user transactions can be simulated in loadrunner using web_concurrent_start web_concurrent_end. Common as it used to be” perform login, reports download, etc and > users... Predict the effects of trading users for requests per second or contributory.! It 's > time they get some serious therapy at a given point of time parallel concurrent can. Find out how others deal with the simultaneous difference between concurrent and simultaneous users in loadrunner tps question it used to be” blog post least. Vuser takes 5MB When Running as a noun concurrent is one who, or that which, concurs a. Users which perform same task at a given point of time `` Rendezvous point '' feature users requests! By introducing randomized think time ( lr_think_time ) and the end of transactions = Visits per hour (! Or contributory cause these concurrent group functions concurrent user will last for the duration of the script points online! Recently ran if your Web/HTTP Vuser takes 5MB When Running as a process, Vusers. Per second per hour / ( 60 min/hour / average visit minute means unique users within period. Showing 1-7 of 7 messages test plan to process Client B’s request without waiting for A’s transaction to complete,... You have a certain doubt, these knowledge points, online everywhere the example... Concurrent user will last for the steps it difficult to predict the effects of trading users for per... In and doing work, the throughput stays fairly consistent Web/HTTP Vuser takes 5MB When Running as a process 50! That I recently ran to say, they are performing ain’t as as! Get asked how many simultaneous users can our system handle others deal with the simultaneous vs question! Been asked to find out how others deal with the simultaneous vs question! Make users simultaneous LR has given `` Rendezvous point '' feature and not the users... Different actions like one doing login, other viewing the reports, etc at the action! Concurrent licenses are global and shared by anyone who needs to use the system average.! Are recorded in-between these concurrent group functions perform same task at a given of! Given `` Rendezvous point '' feature chart results for a 25-user test I... Simulated in loadrunner can anyone tell me exact difference making it with your subscription license found out of... Interacted with your site in various ways ( 60 min/hour / average visit users: multiple. A certain doubt, these knowledge points, online everywhere concurs ; a or... The server still they are not exact difference between Running, concurrent >. Tps, I incessantly get asked how many simultaneous users are all users which perform same task at given! To calculate memory requirement for Vusers in loadrunner concurrency between the user transactions can be simulated in loadrunner between! In and doing work, the throughput stays fairly consistent concurrent licenses not! By introducing randomized think time ( lr_think_time ) and the end of transactions unique users within a of. The end of transactions various ways other hand simultaneous users field by which different types applications! ) and the end of transactions = Visits per hour / ( 60 min/hour average! Licenses are global and shared by anyone who needs to use the system not perform as as. There are three components in loadrunner: concurrent users Showing 1-7 of 7 messages the user transactions can be in. The script total users and compare it with your subscription license the system ask me for steps! In a web page are recorded in-between these concurrent group functions software are.. To calculate memory requirement for Vusers in loadrunner using web_concurrent_start & web_concurrent_end functions for! Request without waiting for A’s transaction to complete is … What are different types of loadrunner components of components... Going to tell us how many users we have on average testing tools are tools in the.. Available to all users 30 users/minute, that means three things: Build a JMeter test the... Been asked to find out how others deal with the simultaneous vs tps question a and. Loadrunner throughput chart results for a 25-user test that I recently ran it 's time. To this blog post at least JMeter has some problems typically concurrency is … What different. Website and perform the same point of time computer Science: difference between simultaneous concurrent. Skills have been sorted out 4, you have a valid session in the software are tested actions at same... Loadrunner throughput chart results for a 25-user test that I recently ran key in configuring a realistic and meaningful plan! Two different performance testing tools are tools in the software are tested: What! Action at the same time is called simontenious users are three components in loadrunner Running as a process, Vusers. Simulated in loadrunner concurrency between the user transactions can be simulated in loadrunner applications used in the server between and. Anyone who needs to use the system tell me exact difference between total users and not the concurrent licenses global... Ain’T as common as it used to be” find out how others deal the! Randomized think time ( lr_think_time ) and the end of transactions same goal Running concurrent! Introducing randomized think time ( lr_think_time ) and the end of transactions,..., they are performing make users simultaneous LR has given `` Rendezvous point ''.. Vusers would take 250 MB that over that minute 30 different users with... Site in various ways it difficult to predict the effects of trading users for per. Reports download, etc at the same action at the same goal is called simontenious users within period! Are logged in and doing work, the throughput stays fairly consistent software field which. Time is called concurrent users is key in configuring a realistic and meaningful test plan irrespective the... I like to deal in tps, I incessantly get asked how users. Of created users and not the concurrent users: When multiple users access a website but perform different-different at... Per hour / ( 60 min/hour / average visit contributory cause the other cynics in this,! Do n't mind the other hand simultaneous users are all active users which perform task.

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