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Thread: Mezzmo MediaServer CPU - anyway to calm it down?

  1. #1
    Join Date
    Nov 2011
    Posts
    94

    Default Mezzmo MediaServer CPU - anyway to calm it down?

    I've activated and looked at the logs for the server since I have regular issues with it constantly hanging on to 5-8% of the CPU for no apparent reason. I noticed it's polling/answering my dozen or so web cams. Got to wondering if there was a way to have the server stop looking/interacting with things that it doesn't need to interact with.

    One amazing fact, when I shutdown the server just now, it added just over 40,000 log entries before gracefully shutting down. Looks like 3 repeating lines.

    9721656 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy (185)
    9721657 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy done(187)
    9721658 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: PendingSend_Head: 0 (170)
    9721659 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy (185)
    9721660 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy done(187)
    9721661 - Jul 13 07:55:26.245 [ThreadID:eb44] - [EB44] INFO > Destroy: PendingSend_Head: 0 (170)
    9721662 - Jul 13 07:55:26.246 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy (185)
    9721663 - Jul 13 07:55:26.246 [ThreadID:eb44] - [EB44] INFO > Destroy: sem_destroy done(187)
    ...

    Here's another snippet...a regular block of 200 lines like this. As I tailed the log, after polling the cameras it would spew this out, then go back to polling the cameras. Now for all I know, the cameras could me messing with Mezzmo by broadcasting hello packets.

    9714709 - Jul 13 07:51:23.671 [ThreadID:eb44] - [EB44] > ---------------------------------------------------------------------
    9714710 - Jul 13 07:51:23.850 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 532, tv_usec = 763000, slct = 0, v = 532763
    9714711 - Jul 13 07:51:23.912 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714712 - Jul 13 07:51:23.913 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 376, tv_usec = 933000, slct = 0, v = 376933
    9714713 - Jul 13 07:51:24.350 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714714 - Jul 13 07:51:24.413 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714715 - Jul 13 07:51:24.415 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 376, tv_usec = 432000, slct = 0, v = 376432
    9714716 - Jul 13 07:51:24.531 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 532, tv_usec = 84000, slct = 0, v = 532084
    9714717 - Jul 13 07:51:24.915 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714718 - Jul 13 07:51:24.916 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 375, tv_usec = 930000, slct = 0, v = 375930
    9714719 - Jul 13 07:51:25.031 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714720 - Jul 13 07:51:25.208 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 531, tv_usec = 403000, slct = 0, v = 531403
    9714721 - Jul 13 07:51:25.416 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714722 - Jul 13 07:51:25.417 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 375, tv_usec = 429000, slct = 0, v = 375429
    9714723 - Jul 13 07:51:25.708 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714724 - Jul 13 07:51:25.884 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 530, tv_usec = 727000, slct = 0, v = 530727
    9714725 - Jul 13 07:51:25.917 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714726 - Jul 13 07:51:25.918 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 374, tv_usec = 928000, slct = 0, v = 374928
    9714727 - Jul 13 07:51:26.384 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714728 - Jul 13 07:51:26.418 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714729 - Jul 13 07:51:26.420 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 374, tv_usec = 427000, slct = 0, v = 374427
    9714730 - Jul 13 07:51:26.562 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 530, tv_usec = 51000, slct = 0, v = 530051
    9714731 - Jul 13 07:51:26.920 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714732 - Jul 13 07:51:26.921 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 373, tv_usec = 925000, slct = 0, v = 373925
    9714733 - Jul 13 07:51:27.062 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714734 - Jul 13 07:51:27.239 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 529, tv_usec = 372000, slct = 0, v = 529372
    9714735 - Jul 13 07:51:27.421 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714736 - Jul 13 07:51:27.422 [ThreadID:eab4] - [EAB4] INFO > EAB4 fd_counts: readset = 7, writeset = 0, errorset = 8, tv_sec = 373, tv_usec = 424000, slct = 0, v = 373424
    9714737 - Jul 13 07:51:27.739 [ThreadID:eb44] - [EB44] WARN > select timed out with tv_sec = 0 and tv_usec = 500000
    9714738 - Jul 13 07:51:27.918 [ThreadID:eb44] - [EB44] INFO > EB44 fd_counts: readset = 10, writeset = 0, errorset = 8, tv_sec = 528, tv_usec = 695000, slct = 0, v = 528695
    9714739 - Jul 13 07:51:27.922 [ThreadID:eab4] - [EAB4] WARN > select timed out with tv_sec = 0 and tv_usec = 500000

  2. #2
    Join Date
    Sep 2009
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    2,221

    Default

    If your cameras have UPnP enabled then this would cause them to send Notify messages over the network and Mezzmo will receive these and respond so you could try disabling UPnP on the cameras if possible.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  3. #3
    Join Date
    Nov 2011
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    94

    Default

    I did that on day one - many years ago. But I did just find another setting I'm turning off that controls whether the cameras appear in Window Explorer. The ones in the log had that enabled.

    So what do you make of the log entries above? Just normal diagnostic info that spews out when the server is idle?

    The 40,000 entries when terminating the server. Is that normal?

  4. #4
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    Sep 2009
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    2,221

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    The lines from terminating the server are messages that had not been sent yet to devices on the network so this is normal when there are a lot of devices on the network communicating. The other grouping of log lines is normal, just the server listening for incoming messages.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  5. #5
    Join Date
    Nov 2011
    Posts
    94

    Default

    Given a 1.6Gb log file, what sorts of things would you search for to reveal clues? During the 5-8% consumption period the only thing showing in the logs were the cameras and that block of "normal" stuff which you described as the server listening for incoming messages. So if that's all the log revealed while the server was consuming 5-8%, there's something the logs aren't seeing that is causing the load?

  6. #6
    Join Date
    Sep 2009
    Posts
    2,221

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    Can you please post the excerpt of the log with the cameras log lines?

    If you add the log to a zip and send it to support [at] conceiva [dot] com we can have a look to see if we can find anything that might cause the load.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

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