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Participating Frequently
June 3, 2009
Question

Massive CPU usage FMS 3.5 live streaming

  • June 3, 2009
  • 1 reply
  • 1819 views

Hi,

Hope this is the right group to post a question.

We have a problem working with FMS 3.5 (installed on a IIS server).

Configuration of the servers all based on IIS:

webserver (authentification, xml data loaded by Flash app, data (on IIS) sended to and recieve from FMS).

Seperate FMS 3.5 (latest update) server. Only running FMS (no other apps are running on this machine).

Starting this project we tested the amount of connections (data flow, CPU, memory) by multiplying it with the aimed number of users (at least 500

simultaneously). Now is seams that this is not the way to do this.

Clients         |             CPU       |    Memory

    10                           2%            12,5 %

    50                           5%            12,5 %

    100                        12%            17,0%

    200                        17%            25,0%

    300                       100%            30,0%

Does anyone have the same problem (high usage of CPU) with a higher amount of connections?

I hoped/figured that the FMS sollution would provide a wider/higer range of connections without the trouble of server capacity.

We use servers with 2 processors (seperate), and 4 gig internal memory, run on 2003 server standard edition (32 bit version).

We are still testing and trying to figure out how to solve this problem. I hope we did something wrong and be able to fix this.

I read a lot of articles on the adobe site (including the optimize FMS for streaming media).

Martijn

    This topic has been closed for replies.

    1 reply

    June 4, 2009

    Hi Martijn,

    Are you streaming live or VOD? What are the bit rates of the content? If the nic is saturated, the CPU could spike. Also, an additional load on a mid-to-high bit rate stream could spike the CPU. Live content is more CPU intensive and VOD content is more memory and disk intensive.

    Jody

    Participating Frequently
    June 4, 2009

    Hi Jody,

    Thanks for replying on my message.

    We are streaming live from a video feed (webcam, edit suite).

    The bitrates we do not set. We use fps and audio herz. Can you explain what you mean?

    The nic is fine, it is a gig network, no problem there. The switches having a winter break.

    What would create an additional load on the mid-to-high bit rate? We have a lot of traffic within our system.

    It is for sure live content, and I do understand that this is more CPU intensive. But the exponential factor is unexplainable as far as we get.

    Gr,

    martijn

    June 4, 2009

    Hi Martijn,

    I'm checking with someone here but won't be able to get back to you until tomorrow (I'm at UTC-7). You might get some answers in the forum before then, who knows!

    Jody