[sldev] [LINUX, PLUGINS] Snowglobe - high load due to Media Plugins

[Carlo Wood]

I ran into something simular while I had the plugins linked
with libcwd (which writes to stdout). The result is that
the system gets confused and the whole thing simply hangs
at 100% cpu usage, without errors or recovery.

So, my advise (to the developer investigating this) would be
to add better error detection to what is sent/received over the
pipes, and if anything out of the ordinary happens, don't
"hang" but report it as an error.

On Thu, Nov 12, 2009 at 11:11:34AM +0000, Opensource Obscure wrote:
> Hello everybody,
> I'm sorry I couldn't do more testing recently;
> I'm on Linux Ubuntu 9.04, where I usually get good
> performances with the stable official viewer.
> 
> I tried yesterday Snoglobe RC-2 and after some time
> client performances were seriously degraded (<10FPS),
> apparently because of media plugins taking lots of CPU.
> 
> I already saw the same thing a few weeks ago, using
> the first releases using Media Plugins. I'm not 
> sure I'm seeing an improvement with regard to this,
> on my system at least.
> 
> I have 4 or 5 plugins processes taking 10-15%
> CPU each one: system load goes until 5-6-7,
> while it's usually at 1.
> The very bad detail about this is that that 
> media were disabled at all.
> 
> I apologize again I didn't more testing, I should
> have raised this before. It appears to be a
> critical issue, at least in my case. I guess 
> I couldn't use Snowglobe on a daily basis anymore
> until this problem won't be solved.
> 
> my hardware system specs (these data are from
> some time ago, but they should be the same):
> CPU: Intel(R) Core(TM)2 CPU 6420 @ 2.13GHz 
> Memory: 3292 MB 
> OS Version: Linux 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009
> i686 
> Graphics Card Vendor: NVIDIA Corporation 
> Graphics Card: GeForce 9600 GT/PCI/SSE2 
> OpenGL Version: 2.1.2 NVIDIA 173.14.12 
> 
> bye
> opensource obscure 
> 
> visit, copy & reuse my LSL HTTP-IN interactive installation:
> http://www.youtube.com/watch?v=IdjwFHCITbE
> https://wiki.secondlife.com/wiki/User:Opensource_Obscure/Chromutate
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-- 
Carlo Wood <carlo at alinoe.com>