Call Statistics

 

During video calls, swyMed collects statistics to help you understand and troubleshoot possible quality issues with a meeting. In most cases, problems arise from the network or one of the computers involved. By providing real-time information on how well swyMed is running on your device and network, the statistics panel can help you diagnose issues quickly and efficiently.

 

Meeting statistics are displayed as a graph of one participant's data.

 

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Call Statistics Terminology

Round Trip Time (RTT)

The length of time, in ms, that it takes for a signal to be sent from the user's computer to the swyMed conferencing server and for an acknowledgment of that signal to be sent back to the user's computer. A long RTT typically results from network congestion. SwyMed automatically adjusts to optimize the RTT.

SD

Standard deviation

Audio/Video Jitter

Variability ("Jitter") in the quality of data packet transmission; if the jitter is greater than about 50 msec, this can result in poor call quality.

Packet Loss

A "packet" refers to a unit of audio, video, and other data that swyMed sends over the computer network. Sometimes, packets disappear due to congestion on the network router or switch ("lost packets") or delayed arrivals on the local jitter buffer ("discarded packets").

Upload

Data upload rate in kbps

Download

Data download rate in kbps

Global CPU usage

Total CPU usage for the user's device

Global Kernel usage

Portion of total CPU usage that was consumed to support hardware

CPU used by call

The CPU usage consumed by the video call

Kernel used by call

The percentage of hardware usage that is consumed by the video call

Video

Resolution of the user's video image and number of video frames sent per second (FPS)

 

Viewing Call Statistics during a Call

To view call statistics:

 
  1. On the in-call toolbar at the top of the screen, click or tap the Help button.
     
  2. Click or tap the Call statistics button.
     
  3. Select the user whose statistics you want to view.
  4. A pop-up window will display a graph of the round trip time (blue) over time. When you view your own graph, you will also see the round trip standard deviation (SD) in red.
     
  5. To view more detailed data, click the Infos button. For an explanation of the terminology, refer to the table above.