# Performance testing 1:N sessions **URL:** \ **Category:** How to implement?\ **Tags:** v2\ **Created:** [June 25, 2020, 8:03am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295 "2020-06-25T08:03:02Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![rohit.roy](https://avatars.discourse-cdn.com/v4/letter/r/eada6e/32.png) [@rohit.roy](https://openvidu.discourse.group/u/rohit.roy)\ **Post date:** [June 25, 2020, 8:03am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/1 "2020-06-25T08:03:02Z")
How can i perform load testing of a single Media Node with below scenario Test sessions with **topologies, such as 1:M** (1 Publisher and Multiple Subscribers. Only Publisher will be publishing Audio and Video with 320x240 resolution) I have - Openvidu server pro with 4 core **- Openvidu Media node with 8 core (C5.2X Large)** I want to check the capacity, how many concurrent subscribers in a single session one Media node can handle. In this table i can see how many “ **subscribers streams** ” can be managed in a server at the same time: (Reference is taken from [[this post](https://medium.com/@openvidu/openvidu-load-testing-a-systematic-study-of-openvidu-platform-performance-b1aa3c475ba9)]) ![image](https://global.discourse-cdn.com/free1/uploads/openvidu/original/1X/5cd7f736906f52f25c30c60a9f629d4730a99d41.png) If i could achieve somewhere around 500 - 600 subscribers with 8 core then it would be really great. Please suggest how can i do this? ---
**Author:** ![CSantosM](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/csantosm/32/16_2.png) [@CSantosM](https://openvidu.discourse.group/u/CSantosM)\ **Post date:** [June 25, 2020, 8:57am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/2 "2020-06-25T08:57:38Z")
Hello, We performed test, the post you referenced, using openvidu-loadtest tool ([https://github.com/OpenVidu/openvidu-loadtest](https://github.com/OpenVidu/openvidu-loadtest)) In your use case, you should modify the webapp ([https://github.com/OpenVidu/openvidu-loadtest/tree/master/webapp](https://github.com/OpenVidu/openvidu-loadtest/tree/master/webapp)) to allow 1:M session ---
**Author:** ![rohit.roy](https://avatars.discourse-cdn.com/v4/letter/r/eada6e/32.png) [@rohit.roy](https://openvidu.discourse.group/u/rohit.roy)\ **Post date:** [June 25, 2020, 9:29am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/3 "2020-06-25T09:29:53Z")
Hello, After modifying the app.js file (for 1:M support) do i need to change in Jenkins code or some where else to pick the latest changes code. OR **No changes required in openvidu-loadtest tool**. I will just change the weapp/app.js file as per my need and I will deploy the webapp somewhere independently and during `Launch Test` i will pass the APP URL (URL where i hosted the webapp client) in Configuration parameters. Can i use the master version or the specific one related to webapp as mentioned below [https://github.com/OpenVidu/openvidu-loadtest/tree/webcomponent\_loadtest](https://github.com/OpenVidu/openvidu-loadtest/tree/webcomponent_loadtest) [https://github.com/OpenVidu/openvidu-loadtest/tree/webcomponent\_loadtest/selenium-test](https://github.com/OpenVidu/openvidu-loadtest/tree/webcomponent_loadtest/selenium-test) ---
**Author:** ![CSantosM](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/csantosm/32/16_2.png) [@CSantosM](https://openvidu.discourse.group/u/CSantosM)\ **Post date:** [June 25, 2020, 10:17am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/4 "2020-06-25T10:17:47Z")
The main difference between each branch is the webapp, so you can add your webpp in the branch you want and follow the README instructions. ---
**Author:** ![rohit.roy](https://avatars.discourse-cdn.com/v4/letter/r/eada6e/32.png) [@rohit.roy](https://openvidu.discourse.group/u/rohit.roy)\ **Post date:** [June 25, 2020, 10:35am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/5 "2020-06-25T10:35:31Z")
Great, it meas i can host the “webapp code” somewhere else independently and can use the URL in command like this cd /home/ubuntu/openvidu-loadtest/selenium-test mvn -Dtest=OpenViduLoadTest -DCONFIGURATION\_ **APP\_URL=https://url-where-i-hosted-the-webapp:PORT/** test ```auto ``` ---
**Author:** ![CSantosM](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/csantosm/32/16_2.png) [@CSantosM](https://openvidu.discourse.group/u/CSantosM)\ **Post date:** [June 25, 2020, 10:54am UTC](https://openvidu.discourse.group/t/performance-testing-1-n-sessions/1295/6 "2020-06-25T10:54:20Z")
Sure, you can do that