Gstreamer RTMP Streaming Memory Leak In DMA

[giritharanr]

Hi Friends,

      I am new to this. Still i didn't clear my issue.I Mention below my problems and solutions which i tried. Please help me.

I am using,

    Hardware         - I.MX6 DL RAM:512 MB

    Kernel Version - 3.0.35

    Gstreamer       - 0.10   

     2Cameras(5MP)  - Mipi interface & Parallel Interface

    Streaming - RTMP

My Problem is,

    1.Memory Leak

     2.Not freeing RAM memory

Solutions Tried,

       See the attachments patch_v4l2_issue.zip.I tried these patches correctly.But no solution i meet.

I Tried the solutions from the below links:

Long running vpu task with memory leak bug on imx6

Re: i.MX6Q: VPU memory allocation "fragmentation" error

GStreamer crashing on i.MX6 (Boundary Devices Nitrogen6x)

  I issued Free command and is shows like

root@freescale ~$ free

             total         used         free       shared      buffers

Mem: 513988       120080       393908            0           60

-/+ buffers:             120020       393968

Swap:            0            0            0

And i gave this command to clear the memory  ( echo 3 > /proc/sys/vm/drop_caches ).But its not clearing the RAM memory(In 720 P resolution).But in 320P Resolution Memory is Cleared.Thats not a problem.   

I attach the  error log file for you reference (gstreamer_error_memory).

So , While i am streamer both camera continously in 720P it streamed upto maximum 30 mins only. But After that i got an memory issue problem.

Thanks and Regards,

R.Giritharan

Original Attachment has been moved to: patch_v4l2_issue.zip

Original Attachment has been moved to: gstreamer_error_memory.zip

[jiaxingliang]

HI, Giritharan, I meet a similar problem while playing RTSP streaming.

Command：

gst-launch-1.0 playbin uri=rtsp://192.168.1.88:556/vga

The memory of gst-launch-1.0 will increase more than 30M per hour， then the video stop， but audio soud ok。

 Delete the libgstvpu.so , use the same commad. memory will not increase,  but play the high resolution (1920x1080) not smooth.

CPU: IMX6DL

Kernel: 4.1.15

BSP: 2.0.1 GA

GST: imx-gst1.0-plugin-4.1.4

Hope get some guide form you, thanks.

[joanxie]

got some information from expert team: the file cache is a common issue from linux, more times read/write to file will cause large memory occupied by cache, the linux only recycle the cache memory when there is no enough memory, that’s why you run second time successfully. Also I find some instructs to limit the cache size, but I don’t know the result by decreasing  the  size.
          The linux memory management point is put the most memory to using to increase the system performance, so much memory was used as cache.