ISSUE TYPE

Improvement Request

COMPONENT NAME

NoVNC Console

CLOUDSTACK VERSION

4.15

CONFIGURATION

All

OS / ENVIRONMENT

Ubuntu 20.04

SUMMARY

With Ubuntu 20.04(KVM)+ACS 4.15, we noticed

• Access to Windows guests via NoVNC console is extremely laggy, barely to use, even compared to the original VNC console in ACS 4.14 or previous versions.
• Access to Linux guests via NOVNC consoles however, looks pretty smooth, no any issue

STEPS TO REPRODUCE

1. Creat Windows VMs
2. Click Windows VM's console to access
3. Move mouse curisor and click any icons or menus

EXPECTED RESULTS

Quick mouse movement and response

ACTUAL RESULTS

Very laggy , significant delay. Poor user expericen.