Find the bottle necks in Transcoding

[mekya]

Issue

Short description

Ant Media Server supports about ~20 sessions in g4dn.2xlarge. However it should support more. Let's find out the bottlenecks in the code that can removes this barrier.

Environment

• Operating system and version: Ubuntu 18.04
• Java version: 11
• Ant Media Server version: 2.4.0.2
• Browser name and version:

Steps to reproduce

1. Install Ant Media Server and Enable GPU in g4dn.2xlarge
2. Add two or three adaptive bitrates(720, 480, 360)
3. Disable WebRTC playback
4. Send 20 RTMP Streams to the server

Expected behavior

CPU usage should be about ~40-50%

Actual behavior

CPU usage is about ~90% and GPU usage is about %50

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