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CatalinMarian
Participant
August 24, 2009
Question

FMSS - streaming interruptions

  • August 24, 2009
  • 1 reply
  • 873 views

Hello everybody,

I'm testing Live streaming with FMSS. The stream is pushed to FMSS buy Adobe FMLE software.

Streaming works fine until I reach 1300-1400 simultaneous connections.No matter what the encoding ratebit is (150kbps or 2000kbps) the stream is no longer play from time to time (5-8 seconds).

The CPU (2xIntel Quad) is loaded less than 20% and memory used is about 2 GB (there is plenty of memory installed 32G). The OS is RedHat 5.3 64bit platform. Network uplink maximum rate is 4Gbps.

I disabled the Queue but the problem still persist.

 <Queue enabled="false">

Any hint will be appreciated.

Thank you

Marian

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    1 reply

    C
    CatalinMarianAuthor
    Participant
    August 27, 2009

    FMS version: FMSS 3.5

    OS: Redhat 5.3

    I applied some sysctl optimizations based esspecialy setting higher values for memory and shorter time for time values.

    I can say it's worst.

    Now the encoder encodes the stream at 1000kbps video+40bkbps audio.

    - cpu of the encoder 60%, memory 400Mbyes used from 2000Mbytes total memory

    - latency between encoder and streamer: ping response constant 15-16 ms

    At 500 connections the streamer go crazy: at evey 10-12 second the stream in flv player stops for one second and then goes ok for another 10-12 seconds.

    - total memory used 600Mbytes from total of 32Gbytes

    - bandwidth: 450Mbps (from total of 4Gbps)

    - CPU load: 20% (from total of 800%), load per core: 10-30%

    Travelling arrounds the forums seems that nobody reach more than 300 simultaneous connections. Maybe Adobe was not the best choice for streaming while Wowza customers testify for more than 4000 simultaneous connections. I have a great hardware but the Adobe software cannot handle it.

    I will uld test for more few days and after that it's time for a refund.

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