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MediaPortal 1
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Can my server handle being a TV server?
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<blockquote data-quote="mm1352000" data-source="post: 1026508" data-attributes="member: 82144"><p>Okay, so lets recap.</p><p></p><p>First you said that only one of your tuners - the PCTV T2 tuner - was affected. Now it is all of them, right?</p><p>Previously you were running a custom build of TV Server that I'm aware has higher potential for stream discontinuity issues. Are you still using that custom version?</p><p></p><p>In your previous thread I said to ensure that you hadn't got any scanners operating on your timeshift/record folders. The more general thing I could have said is that discontinuities can be caused by HDD stress. In other words, if TV Server doesn't have fast enough read/write performance from your HDDs then you'll see discontinuities... and if you're using the same timeshift and record folders for all tuners and the same programs are running concurrently then you should see the same problem for all tuners.</p><p></p><p>Now, two other interesting points.</p><p></p><p>First, as far as I'm concerned you've proved that the HDD access speed is the issue with your comment about the VMs. I suspect their HDD access requirements are in conflict with TV Server. In other words, other applications running at the same time as TV Server that use the HDD heavily (like a scanner) or for random access (like a VM) can slow the HDD access enough to cause problems for TV Server. If you're running TV Server itself in a VM then that could also explain the problem.</p><p></p><p>Second, as far as I'm aware DVBViewer doesn't enable timeshifting by default when playing/streaming TV. In practical terms that means it is not hitting the HDD. MediaPortal <strong>does</strong> use the HDD for playing/streaming TV, and there is no way to disable it. This could explain why you have no problem with DVBViewer while you do have problems with MediaPortal.</p><p></p><p></p><p>I don't think it is such a simple question - at least not for me. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p>At this point your HDD access speed seems the likely cause of the problem, but I'm not sure whether your low power CPU could also be a contributor. I advise you to open up task manager, jump over to the performance tab, and into the resource monitor. Find out whether your CPU and/or HDDs are being driven to the wall when TV Server is timeshifting. Find out whether it is TV Server doing this by itself or whether other processes are also contributing.</p><p></p><p>Note that when you test, please use the standard version of TV Server (DJBlu's version uses the HDD more heavily) and I recommend to test from the "manual control" section of TV Server configuration.</p></blockquote><p></p>
[QUOTE="mm1352000, post: 1026508, member: 82144"] Okay, so lets recap. First you said that only one of your tuners - the PCTV T2 tuner - was affected. Now it is all of them, right? Previously you were running a custom build of TV Server that I'm aware has higher potential for stream discontinuity issues. Are you still using that custom version? In your previous thread I said to ensure that you hadn't got any scanners operating on your timeshift/record folders. The more general thing I could have said is that discontinuities can be caused by HDD stress. In other words, if TV Server doesn't have fast enough read/write performance from your HDDs then you'll see discontinuities... and if you're using the same timeshift and record folders for all tuners and the same programs are running concurrently then you should see the same problem for all tuners. Now, two other interesting points. First, as far as I'm concerned you've proved that the HDD access speed is the issue with your comment about the VMs. I suspect their HDD access requirements are in conflict with TV Server. In other words, other applications running at the same time as TV Server that use the HDD heavily (like a scanner) or for random access (like a VM) can slow the HDD access enough to cause problems for TV Server. If you're running TV Server itself in a VM then that could also explain the problem. Second, as far as I'm aware DVBViewer doesn't enable timeshifting by default when playing/streaming TV. In practical terms that means it is not hitting the HDD. MediaPortal [B]does[/B] use the HDD for playing/streaming TV, and there is no way to disable it. This could explain why you have no problem with DVBViewer while you do have problems with MediaPortal. I don't think it is such a simple question - at least not for me. ;) At this point your HDD access speed seems the likely cause of the problem, but I'm not sure whether your low power CPU could also be a contributor. I advise you to open up task manager, jump over to the performance tab, and into the resource monitor. Find out whether your CPU and/or HDDs are being driven to the wall when TV Server is timeshifting. Find out whether it is TV Server doing this by itself or whether other processes are also contributing. Note that when you test, please use the standard version of TV Server (DJBlu's version uses the HDD more heavily) and I recommend to test from the "manual control" section of TV Server configuration. [/QUOTE]
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