How are you load testing the app. How many clients are connected.
Is it doing vod or live streaming? Im assuming its vod.
I suspect that most time will be taken up with disk IO currently.
Once we have solved the threading issue this will be the next area we look.

- Luke


On 5/3/07, Maurits Dijkstra <[EMAIL PROTECTED]> wrote:

Hi all,

The last few weeks we've been transitioning our Flash Communication
Server setup to Red5.
When we started stresstesting our application (which is a slightly
modified version of the oflaDemo tutorial application) we noticed
Red5 is eating a lot of CPU, way more than FCS did on a machine with
similar load and specs.

We have the following setup:
* Pentium 4 2GHz server with 1GB of memory.
* Java 1.5 on Ubuntu 7.04.
* Around 85 broadcasters and about as much subscribers (although I'm
not sure how to count those).
* 240x160x15fps at 80 quality with no bandwidth restrictions. This is
about 10-15kb/s a stream.

Red5 uses around 90-100% CPU in this case and 'only' 11.5% memory,
measured using the UNIX tool 'top'. The load is around 3-4. Is this
normal? If so, what can we do to improve performance?

Thanks,
Maurits Dijkstra

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