The situation when a Java machine starts the garbage collector is called вЂњStop the world,вЂќ which means that your application will be completely stopped while the garbage collection is running. Like in the case of the Load average, the lower the number, the better. The following few metrics are relevant to the Java Virtual Machine: You can find the value of degraded_streams_percent on the statistics page (where is the address of the WCS server) Therefore, the percentage of degraded streams is an important metric that signals a loss of quality. In case of a high load on the CPU and a lack of performance for encoding/decoding or with internal locks, these queues can grow, and streams can degrade. The video data of the published stream is queued, and the data is sent in a separate thread. A stream is degraded if the server does not have time to process the queue of this stream.

The next metric, which is directly related to the previous one: degraded_streams_percent вЂ“ the percentage of degraded streams. load average: 4.55 4.22 4.18ДЇor example, such values for a quad-core processor mean that it works at the limit of its capabilities for a long time (several hours), and such work will definitely lead to degradation of streams. This parameter is displayed as three values, which represent the average load data for the last 1, 5 and 15 minutes. Usually, the Load average parameter is estimated вЂ“ the average value of the system load. You can estimate the current processor load using the htop software. If the processor is loaded by more than 80%, and/or the CPU load periodically rises to 100%, this means that the server is overloaded and does not have enough processing power to perform work operations, which will certainly lead to degradation of streams. There are artifacts, friezes, stuttering, or out of sync sound.

Stream degradation is a condition of a video/audio stream, in which the picture and sound quality is not satisfactory. All these data for assessing stream quality can be obtained manually from various sources. The quality of the stream, as has already been discussed many times, is not constant and depends on many factors, such as the load on the server with or without transcoding, and the use of TCP or UDP transport protocols, and the presence of packet loss and/or NACK feedbacks, etc.

to assess the stream quality, the number of viewers and other parameters. As a rule, it is important for a streamer to know what is happening on the вЂњother sideвЂќ вЂ“ i.e. Frequent requests to our support include questions about organizing monitoring for WebRTC streaming.

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