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Thread: Observing high CPU utilization when ondemand load testing was done for long video

  1. #1
    Join Date
    Dec 2013
    Posts
    1

    Default Observing high CPU utilization when ondemand load testing was done for long video

    Hi,

    I am observing high cpu utilization when loadtesting was done using Wowza load testtool on WowzaMediaserver 3.1.1 for ondemand video of 8 hour duration of 1280*720(recorded at 768Kbps)

    Server: Dual Intel E5-2650, 32 gb ram

    Load test:
    1) Simulating 350 users hitting 50 different files of 8 hour duration (ondemand stream)
    2) Observed that cpu was spiking drastically even up to 99%

    Note:
    When the same test was done on 1 hour and 2 hour video files of same resolution, cpu was fine (around 5 %)


    I would like to know whether this is an issue with WowzaMedia Server 3.1.1 and if the same then is there a fix available in the recent releases.


    Thanks

  2. #2
    Join Date
    May 2013
    Posts
    680

    Default

    To help determine the cause of the spike, it'd be good to take a look at the logs toward the end of that period of time. If you could zip up your [install-dir]/logs and [install-dir]/conf directories and send it to support@wowza.com we can take a more in-depth look.

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