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bzImage
PostPosted: Thu Mar 30, 2006 9:23 pm 
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Joined: Wed Feb 01, 2006 8:31 pm
Posts: 45
I just find out some weird stuff about VLC streaming (using mythstreamtv).. my current setup:

- 384 MB Ram
- Celeron 2.4 Ghz
- Hauppauge PVR 350

When i use the mythweb interface to stream a recorded program using any settings, the memory usage of the VLC proces goes up, and up, and up, and this eventually makes the oom-killer active, and it starts to kill processes..

Here is a snapshot every 3 seconds of the memory usage for the vlc process:

(check the SZ column)

Code:
F  S UID     PID  PPID  C PRI NI ADDR SZ  WCHAN TTY TIME CMD
   
0 S    33  9929  9927 25  75   0 - 70121 stext  ?        00:01:44 vlc
Thu Mar 30 21:09:07 CST 2006
0 S    33  9929  9927 25  75   0 - 70568 stext  ?        00:01:45 vlc
Thu Mar 30 21:09:10 CST 2006
0 S    33  9929  9927 25  75   0 - 70953 stext  ?        00:01:46 vlc
Thu Mar 30 21:09:13 CST 2006
0 S    33  9929  9927 25  75   0 - 71354 stext  ?        00:01:47 vlc
Thu Mar 30 21:09:16 CST 2006
0 S    33  9929  9927 25  75   0 - 71764 stext  ?        00:01:47 vlc
Thu Mar 30 21:09:19 CST 2006
0 S    33  9929  9927 25  75   0 - 72200 stext  ?        00:01:48 vlc
Thu Mar 30 21:09:22 CST 2006
0 S    33  9929  9927 25  75   0 - 72560 stext  ?        00:01:49 vlc
Thu Mar 30 21:09:25 CST 2006
0 S    33  9929  9927 25  75   0 - 72974 stext  ?        00:01:50 vlc
Thu Mar 30 21:09:28 CST 2006
0 S    33  9929  9927 25  75   0 - 73405 stext  ?        00:01:51 vlc
Thu Mar 30 21:09:31 CST 2006
0 S    33  9929  9927 25  75   0 - 73829 stext  ?        00:01:52 vlc
Thu Mar 30 21:09:34 CST 2006
0 S    33  9929  9927 25  75   0 - 74234 stext  ?        00:01:52 vlc
Thu Mar 30 21:09:37 CST 2006
0 S    33  9929  9927 25  75   0 - 74619 stext  ?        00:01:53 vlc
Thu Mar 30 21:09:40 CST 2006
0 S    33  9929  9927 25  75   0 - 75002 stext  ?        00:01:54 vlc
Thu Mar 30 21:09:43 CST 2006
0 S    33  9929  9927 25  75   0 - 75339 stext  ?        00:01:55 vlc
Thu Mar 30 21:09:46 CST 2006
0 S    33  9929  9927 25  75   0 - 75777 stext  ?        00:01:56 vlc
Thu Mar 30 21:09:49 CST 2006
0 S    33  9929  9927 25  75   0 - 76086 stext  ?        00:01:56 vlc
Thu Mar 30 21:09:52 CST 2006
0 S    33  9929  9927 25  75   0 - 76429 stext  ?        00:01:57 vlc
Thu Mar 30 21:09:55 CST 2006
0 S    33  9929  9927 25  75   0 - 76765 stext  ?        00:01:58 vlc
Thu Mar 30 21:09:58 CST 2006
0 S    33  9929  9927 25  75   0 - 77100 stext  ?        00:01:59 vlc
Thu Mar 30 21:10:01 CST 2006
0 S    33  9929  9927 25  75   0 - 77426 stext  ?        00:01:59 vlc
Thu Mar 30 21:10:04 CST 2006
0 S    33  9929  9927 25  75   0 - 77747 stext  ?        00:02:00 vlc
Thu Mar 30 21:10:07 CST 2006
0 S    33  9929  9927 25  75   0 - 78064 stext  ?        00:02:01 vlc
Thu Mar 30 21:10:10 CST 2006
0 S    33  9929  9927 25  75   0 - 78379 stext  ?        00:02:01 vlc
Thu Mar 30 21:10:14 CST 2006
0 S    33  9929  9927 25  75   0 - 78706 stext  ?        00:02:02 vlc
Thu Mar 30 21:10:17 CST 2006
0 S    33  9929  9927 25  75   0 - 79026 stext  ?        00:02:03 vlc
Thu Mar 30 21:10:20 CST 2006
0 S    33  9929  9927 25  75   0 - 79384 stext  ?        00:02:04 vlc
Thu Mar 30 21:10:23 CST 2006
0 S    33  9929  9927 25  75   0 - 79716 stext  ?        00:02:04 vlc
Thu Mar 30 21:10:26 CST 2006
0 S    33  9929  9927 25  75   0 - 80074 stext  ?        00:02:05 vlc
Thu Mar 30 21:10:29 CST 2006
0 S    33  9929  9927 25  75   0 - 80437 stext  ?        00:02:06 vlc
Thu Mar 30 21:10:32 CST 2006
0 S    33  9929  9927 25  75   0 - 80844 stext  ?        00:02:06 vlc
Thu Mar 30 21:10:35 CST 2006
0 S    33  9929  9927 25  75   0 - 81208 stext  ?        00:02:07 vlc
Thu Mar 30 21:10:38 CST 2006
0 S    33  9929  9927 25  75   0 - 81588 stext  ?        00:02:08 vlc
Thu Mar 30 21:10:41 CST 2006
0 S    33  9929  9927 25  75   0 - 81972 stext  ?        00:02:09 vlc



After a while i can see something like this on the /var/log/messages file

Code:
Mar 30 20:52:05 chronos kernel: oom-killer: gfp_mask=0xd0, order=0
Mar 30 20:52:05 chronos kernel: Mem-info:
Mar 30 20:52:05 chronos kernel: DMA per-cpu:
Mar 30 20:52:05 chronos kernel: cpu 0 hot: low 0, high 0, batch 1 used:0
Mar 30 20:52:05 chronos kernel: cpu 0 cold: low 0, high 0, batch 1 used:0
Mar 30 20:52:05 chronos kernel: DMA32 per-cpu: empty
Mar 30 20:52:05 chronos kernel: Normal per-cpu:
Mar 30 20:52:05 chronos kernel: cpu 0 hot: low 0, high 186, batch 31 used:3
Mar 30 20:52:05 chronos kernel: cpu 0 cold: low 0, high 62, batch 15 used:14
Mar 30 20:52:05 chronos kernel: HighMem per-cpu: empty
Mar 30 20:52:05 chronos kernel: Free pages:        3920kB (0kB HighMem)
Mar 30 20:52:05 chronos kernel: Active:41865 inactive:42038 dirty:0 writeback:0
unstable:0 free:980 slab:7128 mapped:83881 pagetables:602
Mar 30 20:52:05 chronos kernel: DMA free:1572kB min:104kB low:128kB high:156kB a
ctive:4900kB inactive:4836kB present:16384kB pages_scanned:10922 all_unreclaimab
le? yes
Mar 30 20:52:05 chronos kernel: lowmem_reserve[]: 0 0 367 367
Mar 30 20:52:05 chronos kernel: DMA32 free:0kB min:0kB low:0kB high:0kB active:0
kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
Mar 30 20:52:05 chronos kernel: lowmem_reserve[]: 0 0 367 367


As you can see, it seems that the vlc streaming process its eating the ram of the system.. anyone else has noticed this on their systems (using mythstreamtv ) ?


Edit: It seems that this problem is an already known issue with VLC 0.8.1.. (according to http://forum.videolan.org/viewtopic.php ... emory+leak).

In R5B7 "vlc --version" outputs:
0.8.1 Janus


What is the right way to upgrade VLC on knoppmyth ?
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bzImage
 Post subject:
PostPosted: Fri Mar 31, 2006 4:59 pm 
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Joined: Wed Feb 01, 2006 8:31 pm
Posts: 45
I can now confirm that the latest beta version of VLC 0.8.5-test1 does not present this memory leak.
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RichP
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PostPosted: Mon Apr 03, 2006 8:13 am 
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Joined: Wed Nov 10, 2004 12:28 am
Posts: 91
Location: NJ
Did you upgrade VLC?

If so can you provide instructions on how to do so?

I want to try to get MythStreamTV to stream HD recordings...

Thx.

Rich
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