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MediaPortal 1
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5111: Parallel DVB EPG
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<blockquote data-quote="CyberSimian" data-source="post: 1273391" data-attributes="member: 141969"><p>My OS disk is a rather slow Western Digital Green Drive <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" />, so that may partly explain the statistics:</p><ul> <li data-xf-list-type="ul">I grab the EPG by recording a specific radio channel for 30 minutes from 06:00 to 06:30 each morning.</li> <li data-xf-list-type="ul">The entire EPG for about 150 TV and radio channels for 7 days can be grabbed in about 10 minutes (varies slightly from day to day).</li> <li data-xf-list-type="ul">From looking at the logs, it seems that TV Server stores the EPG data in RAM until the grabbing phase is complete, and then it performs the SQL updates. The SQL updates take another 10 minutes on my system.</li> <li data-xf-list-type="ul">So overall, the EPG takes around 20 minutes (varying slightly from day to day), at the end of which I have a full EPG for 7 days.</li> <li data-xf-list-type="ul">TV Server seems to have a criterion for deciding when to stop grabbing the EPG, so the grabbing/updating is not usually stopped prematurely by the ending of the 30-minute recording (the grabbing/updating usually stopped about 10 minutes earlier).</li> <li data-xf-list-type="ul">The UK EPG tends to vary very little at short notice, but if (say) live sport has overrun, I can manually record the "EPG" radio channel for 5-10 minutes to receive any last-minute changes to the EPG.</li> </ul><p>I have only been using this arrangement since January. Previously I grabbed the EPG when the tuners were idle, with a repetition period of one hour. But this often delayed hibernation when I "switched off" the HTPC because the HTPC decided that it was overdue for an EPG grabbing. Mostly now it hibernates immediately, although occasionally hibernation is delayed. I think that this is caused by Windows performing maintenance, as nothing else is running that would cause the delay.</p><p></p><p>-- from CyberSimian in the UK</p></blockquote><p></p>
[QUOTE="CyberSimian, post: 1273391, member: 141969"] My OS disk is a rather slow Western Digital Green Drive :(, so that may partly explain the statistics: [LIST] [*]I grab the EPG by recording a specific radio channel for 30 minutes from 06:00 to 06:30 each morning. [*]The entire EPG for about 150 TV and radio channels for 7 days can be grabbed in about 10 minutes (varies slightly from day to day). [*]From looking at the logs, it seems that TV Server stores the EPG data in RAM until the grabbing phase is complete, and then it performs the SQL updates. The SQL updates take another 10 minutes on my system. [*]So overall, the EPG takes around 20 minutes (varying slightly from day to day), at the end of which I have a full EPG for 7 days. [*]TV Server seems to have a criterion for deciding when to stop grabbing the EPG, so the grabbing/updating is not usually stopped prematurely by the ending of the 30-minute recording (the grabbing/updating usually stopped about 10 minutes earlier). [*]The UK EPG tends to vary very little at short notice, but if (say) live sport has overrun, I can manually record the "EPG" radio channel for 5-10 minutes to receive any last-minute changes to the EPG. [/LIST] I have only been using this arrangement since January. Previously I grabbed the EPG when the tuners were idle, with a repetition period of one hour. But this often delayed hibernation when I "switched off" the HTPC because the HTPC decided that it was overdue for an EPG grabbing. Mostly now it hibernates immediately, although occasionally hibernation is delayed. I think that this is caused by Windows performing maintenance, as nothing else is running that would cause the delay. -- from CyberSimian in the UK [/QUOTE]
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