much more memory leak with multiple rtsp streamings at the same time

[cfd new]

I have a RTSP gstreaming app on Ubuntu 22.02 and Gstreamer 1.20.3. For test purpose, I create a pipeline and then destroy it repeatedly.If only one pipeline is tested, there is a little bit memory leak. But memory leak rises up to 0.2% of 8G memory every time when 4 pipelines 
are tested at the same time. The same URL or 4 different URLs do not matter. What could be the reasons? 

Hardware info: Intel i7-7600U with HD Graphics 620 card. VA decoder is used in the pipeline.

    Joe  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20230224/7878e778/attachment.htm>