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How to recovery the system free memory after I stop the record pipeline

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Zhong Hongbo
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How to recovery the system free memory after I stop the record pipeline

Zhong Hongbo
Hi

How to recovery the system free memory after I stop the record pipeline.

I am using the following step to check the system free memory and create a pipline to record the video stream.
The system free memory will decrease after the pipline running.

But when I stop the pipline, The system memory could not be recovery to the origin memory state. After I delete
the record file, The system memory can be recovery.

1. X86:
(1) Test enviroment:
OS Enviroment: Ubuntu 14.04.4
Gstreamer Version: GStreamer 1.6.3

(2) Check the free memory script(The script name is test.sh) :
#!/bin/sh

while :
do
         cat /proc/meminfo | grep MemFree
         sleep  5
done


(3) Test step
The fist step: Running the test.sh to check the system free memory
The next step: Running the record command as the following:
gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! x264enc ! avimux ! filesink location=./test.avi

(4) Test Result:
When The pipeline is running, The system free memory will be decreased.
MemFree:          293064 kB
MemFree:          231984 kB
MemFree:          226280 kB
MemFree:          220780 kB
MemFree:          215340 kB
MemFree:          222788 kB
MemFree:          217228 kB
MemFree:          211908 kB
MemFree:          206048 kB
MemFree:          200344 kB
MemFree:          194796 kB
MemFree:          188904 kB
MemFree:          183448 kB
MemFree:          177868 kB
MemFree:          172072 kB
MemFree:          166212 kB
MemFree:          160756 kB
MemFree:          166684 kB
MemFree:          161036 kB
MemFree:          159176 kB
MemFree:          145444 kB

After I stop the pipeline(Using ctrl + c), the free memory will increase something. But it could not to recovery it.
MemFree:          200084 kB
MemFree:          199804 kB
MemFree:          203276 kB
MemFree:          199844 kB
MemFree:          200084 kB
MemFree:          200044 kB


After I delete the record file(test.avi), The system free memory can be recovery.
MemFree:          199968 kB
MemFree:          312332 kB
MemFree:          312288 kB


2. For ARM platform
Freescale imx6q:
gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! imxvpuenc_h264 ! avimux ! filesink location=./test.avi

Test Result:
When the pipeline is running, The system free memory state:
MemFree:          744920 kB
MemFree:          744600 kB
MemFree:          736352 kB
MemFree:          731656 kB
MemFree:          726316 kB
MemFree:          721024 kB
MemFree:          715908 kB
MemFree:          711088 kB
MemFree:          705872 kB
MemFree:          700204 kB
MemFree:          695028 kB
MemFree:          689984 kB
MemFree:          684784 kB
MemFree:          683872 kB
MemFree:          683772 kB
MemFree:          678640 kB
MemFree:          673712 kB
MemFree:          668380 kB
MemFree:          663100 kB
MemFree:          657808 kB
MemFree:          652732 kB
MemFree:          647516 kB
MemFree:          642316 kB
MemFree:          641476 kB
... ... ... ... ... ...
MemFree:          252860 kB
MemFree:          252812 kB
MemFree:          252860 kB
MemFree:          252844 kB
MemFree:          252796 kB
MemFree:          252876 kB
MemFree:          252876 kB
MemFree:          252876 kB
MemFree:          252868 kB
MemFree:          252836 kB
MemFree:          252884 kB
MemFree:          252744 kB
MemFree:          252812 kB
MemFree:          252736 kB
MemFree:          252736 kB
MemFree:          252624 kB
MemFree:          252672 kB
MemFree:          252704 kB
MemFree:          252516 kB
MemFree:          575392 kB

After I delete the record file(test.avi), The free memory can be recovery to the original state.
MemFree:          743300 kB
MemFree:          743416 kB
MemFree:          743408 kB
MemFree:          743220 kB
MemFree:          743284 kB

Thanks,
Hongbo



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saepia
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Re: How to recovery the system free memory after I stop the record pipeline

saepia
Hello,

first of all, ensure that you are checking memory correctly. I doubt if MemFree substracts memory used by cache/buffers which is occupied at the moment but can be easily freed by the system. For instance, free command shows that in the second row:

$ free
             total       used       free     shared    buffers     cached
Mem:       4045936    3538900     507036      10644     298020    2175820
-/+ buffers/cache:    1065060    2980876
Swap:      1950716       7664    1943052

If you still think that its GStreamer eating memory, it's likely a bug, and you have to fill a bug report.

Marcin
 

2016-03-12 16:38 GMT+01:00 hzhong <[hidden email]>:
Hi

How to recovery the system free memory after I stop the record pipeline.

I am using the following step to check the system free memory and create a pipline to record the video stream.
The system free memory will decrease after the pipline running.

But when I stop the pipline, The system memory could not be recovery to the origin memory state. After I delete
the record file, The system memory can be recovery.

1. X86:
(1) Test enviroment:
OS Enviroment: Ubuntu 14.04.4
Gstreamer Version: GStreamer 1.6.3

(2) Check the free memory script(The script name is test.sh) :
#!/bin/sh

while :
do
        cat /proc/meminfo | grep MemFree
        sleep  5
done


(3) Test step
The fist step: Running the test.sh to check the system free memory
The next step: Running the record command as the following:
gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! x264enc ! avimux ! filesink location=./test.avi

(4) Test Result:
When The pipeline is running, The system free memory will be decreased.
MemFree:          293064 kB
MemFree:          231984 kB
MemFree:          226280 kB
MemFree:          220780 kB
MemFree:          215340 kB
MemFree:          222788 kB
MemFree:          217228 kB
MemFree:          211908 kB
MemFree:          206048 kB
MemFree:          200344 kB
MemFree:          194796 kB
MemFree:          188904 kB
MemFree:          183448 kB
MemFree:          177868 kB
MemFree:          172072 kB
MemFree:          166212 kB
MemFree:          160756 kB
MemFree:          166684 kB
MemFree:          161036 kB
MemFree:          159176 kB
MemFree:          145444 kB

After I stop the pipeline(Using ctrl + c), the free memory will increase something. But it could not to recovery it.
MemFree:          200084 kB
MemFree:          199804 kB
MemFree:          203276 kB
MemFree:          199844 kB
MemFree:          200084 kB
MemFree:          200044 kB


After I delete the record file(test.avi), The system free memory can be recovery.
MemFree:          199968 kB
MemFree:          312332 kB
MemFree:          312288 kB


2. For ARM platform
Freescale imx6q:
gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! imxvpuenc_h264 ! avimux ! filesink location=./test.avi

Test Result:
When the pipeline is running, The system free memory state:
MemFree:          744920 kB
MemFree:          744600 kB
MemFree:          736352 kB
MemFree:          731656 kB
MemFree:          726316 kB
MemFree:          721024 kB
MemFree:          715908 kB
MemFree:          711088 kB
MemFree:          705872 kB
MemFree:          700204 kB
MemFree:          695028 kB
MemFree:          689984 kB
MemFree:          684784 kB
MemFree:          683872 kB
MemFree:          683772 kB
MemFree:          678640 kB
MemFree:          673712 kB
MemFree:          668380 kB
MemFree:          663100 kB
MemFree:          657808 kB
MemFree:          652732 kB
MemFree:          647516 kB
MemFree:          642316 kB
MemFree:          641476 kB
... ... ... ... ... ...
MemFree:          252860 kB
MemFree:          252812 kB
MemFree:          252860 kB
MemFree:          252844 kB
MemFree:          252796 kB
MemFree:          252876 kB
MemFree:          252876 kB
MemFree:          252876 kB
MemFree:          252868 kB
MemFree:          252836 kB
MemFree:          252884 kB
MemFree:          252744 kB
MemFree:          252812 kB
MemFree:          252736 kB
MemFree:          252736 kB
MemFree:          252624 kB
MemFree:          252672 kB
MemFree:          252704 kB
MemFree:          252516 kB
MemFree:          575392 kB

After I delete the record file(test.avi), The free memory can be recovery to the original state.
MemFree:          743300 kB
MemFree:          743416 kB
MemFree:          743408 kB
MemFree:          743220 kB
MemFree:          743284 kB

Thanks,
Hongbo



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Zhong Hongbo
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Re: How to recovery the system free memory after I stop the record pipeline

Zhong Hongbo


On 2016年03月13日 03:37, [hidden email] wrote:
Hello,

first of all, ensure that you are checking memory correctly. I doubt if MemFree substracts memory used by cache/buffers which is occupied at the moment but can be easily freed by the system. For instance, free command shows that in the second row:

$ free
             total       used       free     shared    buffers     cached
Mem:       4045936    3538900     507036      10644     298020    2175820
-/+ buffers/cache:    1065060    2980876
Swap:      1950716       7664    1943052
Thanks for your mind.

Thanks,
Hongbo

If you still think that its GStreamer eating memory, it's likely a bug, and you have to fill a bug report.

Marcin
 
2016-03-12 16:38 GMT+01:00 hzhong <[hidden email]>:
Hi
How to recovery the system free memory after I stop the record pipeline.
I am using the following step to check the system free memory and create a pipline to record the video stream.
 The system free memory will decrease after the pipline running.
But when I stop the pipline, The system memory could not be recovery to the origin memory state. After I delete
 the record file, The system memory can be recovery.
1. X86:
 (1) Test enviroment:
 OS Enviroment: Ubuntu 14.04.4
 Gstreamer Version: GStreamer 1.6.3
(2) Check the free memory script(The script name is test.sh) :
 #!/bin/sh
while :
 do
         cat /proc/meminfo | grep MemFree
         sleep  5
 done

(3) Test step
 The fist step: Running the test.sh to check the system free memory
 The next step: Running the record command as the following:
 gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! x264enc ! avimux ! filesink location=./test.avi
(4) Test Result:
 When The pipeline is running, The system free memory will be decreased.
 MemFree:          293064 kB
 MemFree:          231984 kB
 MemFree:          226280 kB
 MemFree:          220780 kB
 MemFree:          215340 kB
 MemFree:          222788 kB
 MemFree:          217228 kB
 MemFree:          211908 kB
 MemFree:          206048 kB
 MemFree:          200344 kB
 MemFree:          194796 kB
 MemFree:          188904 kB
 MemFree:          183448 kB
 MemFree:          177868 kB
 MemFree:          172072 kB
 MemFree:          166212 kB
 MemFree:          160756 kB
 MemFree:          166684 kB
 MemFree:          161036 kB
 MemFree:          159176 kB
 MemFree:          145444 kB
After I stop the pipeline(Using ctrl + c), the free memory will increase something. But it could not to recovery it.
 MemFree:          200084 kB
 MemFree:          199804 kB
 MemFree:          203276 kB
 MemFree:          199844 kB
 MemFree:          200084 kB
 MemFree:          200044 kB

After I delete the record file(test.avi), The system free memory can be recovery.
 MemFree:          199968 kB
 MemFree:          312332 kB
 MemFree:          312288 kB

2. For ARM platform
 Freescale imx6q:
 gst-launch-1.0 videotestsrc ! video/x-raw,format=UYVY,width=640,hight=480 ! videoconvert ! video/x-raw,format=I420 ! imxvpuenc_h264 ! avimux ! filesink location=./test.avi
Test Result:
 When the pipeline is running, The system free memory state:
 MemFree:          744920 kB
 MemFree:          744600 kB
 MemFree:          736352 kB
 MemFree:          731656 kB
 MemFree:          726316 kB
 MemFree:          721024 kB
 MemFree:          715908 kB
 MemFree:          711088 kB
 MemFree:          705872 kB
 MemFree:          700204 kB
 MemFree:          695028 kB
 MemFree:          689984 kB
 MemFree:          684784 kB
 MemFree:          683872 kB
 MemFree:          683772 kB
 MemFree:          678640 kB
 MemFree:          673712 kB
 MemFree:          668380 kB
 MemFree:          663100 kB
 MemFree:          657808 kB
 MemFree:          652732 kB
 MemFree:          647516 kB
 MemFree:          642316 kB
 MemFree:          641476 kB
 ... ... ... ... ... ...
 MemFree:          252860 kB
 MemFree:          252812 kB
 MemFree:          252860 kB
 MemFree:          252844 kB
 MemFree:          252796 kB
 MemFree:          252876 kB
 MemFree:          252876 kB
 MemFree:          252876 kB
 MemFree:          252868 kB
 MemFree:          252836 kB
 MemFree:          252884 kB
 MemFree:          252744 kB
 MemFree:          252812 kB
 MemFree:          252736 kB
 MemFree:          252736 kB
 MemFree:          252624 kB
 MemFree:          252672 kB
 MemFree:          252704 kB
 MemFree:          252516 kB
 MemFree:          575392 kB
After I delete the record file(test.avi), The free memory can be recovery to the original state.
 MemFree:          743300 kB
 MemFree:          743416 kB
 MemFree:          743408 kB
 MemFree:          743220 kB
 MemFree:          743284 kB
Thanks,
 Hongbo


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 gstreamer-devel mailing list
 [hidden email]
 https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
 



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