Large Scale Load Testing Tool

KITE Grid Manager

End-to-end testing under heaviest loads to validate the entire system with any stress conditions. One fixed price, no limit.

Why load test your WebRTC system?

KITE Grid Manager for WebRTC load testing features end-to-end testing using your own application as client running in Chrome or Firefox. Load testing is useful to validate your entire system and helps to :

  • Recognize upper capacity limits of your application system
  • Anticipate user experience changes (UX) under different stressed conditions
  • Identify and eradicate system bottlenecks

Cost Effective

KITE Grid Manager is a web app you subscribe for fixed monthly fee for unlimited usage to run the load tests on your own cloud.

Pay your cloud provider directly for VM usage at the lowest instance prices.

Cloud cost – Example Scenario 1

Video Conference Test

  • 2000 Meeting Rooms
  • 7 Participants per Rooms
  • Video @ 1.7 Mbps
  • Test duration: 1 hour

Estimated AWS Usage Cost:

US $70*

Cloud cost – Example Scenario 1

Live Streaming or Webinar

  • 100,000 Viewers
  • Video @ 1.7 Mpbs
  • Test duration: 1 hour

Estimated AWS Usage Cost:

US $175*

*  AWS instance price only, based on historical spot price in us-east-1 for C4.xlarge. Excluding data transfer cost and Grid Manager monthly fee which is fixed for unlimited usage. Please contact us for more details.

Intuitive Workflow

1. Script your test

Effortless and Ready-to-Use

Leverage our existing Selenium Test Scripts with modular steps to validate any WebRTC service in any setup, p2p, small conference, large conference, webinar, live streaming, and more.

Validate any of your service’s functionalities:

  • Login, join existing rooms or initiate calls
  • Verify video, audio and WebRTC stats
  • Check your Last N, screen sharing, messaging features and more

2. Configure your scenario

Highly Configurable

Set ramp-up speed, number of rooms, number of participants, leave/join timings and meeting durations for each participant.

Highly Scalable

No limit imposed by KITE Grid Manager : setup as many clients as allowed by your Cloud provider’s instance limits.

3. Results Analysis

Server-side System Metrics

Monitor your system in real-time during the test for network traffic, CPU & memory utilization, disk I/O thanks to our MetricBeat integration

Client-side WebRTC Statistics

Collect statistics from all the clients during the full duration of the test and analyze for each audio and video streams, tracks, filtering by Server, Meeting ID, User ID, Clients:

  • In/out bitrates, packet loss, jitter
  • Frame rate, round trip time, codec, resolution


Enables video media frame quality assessment, specifically built to assess real-time media quality.

Learn more on NARVAL

Customer Story

KITE Grid Manager has been used by 3CX, a unified communication solutions company, for the load testing and benchmarking of their WebRTC based video conferencing solution, Webmeeting.

Discover how load testing 3’000 concurrent clients with KITE has helped 3CX improve server performance and capacity, and benchmark against open source SFUs.

“CoSMo Software’s KITE Grid Manager suite for load testing provided new capabilities to 3CX and its WebRTC team to further improve our SFU/MCU.

The test suite is extremely versatile and easy to use, and minimal development effort is required to get started. What’s also valuable about CoSMo’s KITE Grid Manager is that you can simulate each WebRTC client in its own dedicated Virtual Machine. This is the best way to ensure your WebRTC statistics are not skewed by running bulk tests with multiple clients on a single machine. On top of that, you’re able to conveniently analyze statistics from each connected client.

What was really great about the whole experience was the fact that the CoSMo team was always super responsive to our questions and needs. They’ve even gone above and beyond the call of duty on several occasions to help with our tests. CoSMo Software’s test suite has greatly helped us with our development efforts and we’ve been able to significantly improve our SFU/MCU’s performance as well as its capacity.”


Leonidas Georgiou, Product Manager of 3CX

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