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MediaPortal 1
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<blockquote data-quote="Owlsroost" data-source="post: 656367" data-attributes="member: 83973"><p>I have tried using MMCSS for the 'scheduler' thread in the past - the code is still there, commented out (and the other two threads <strong>do </strong>use MMCSS).</p><p></p><p>I stopped using MMCSS for the 'scheduler' thread because it seemed to have side effects which made the overall performance worse. MMCSS seems to be a very 'aggressive' scheduler, so it's all too easy to degrade the performance of other threads if you're not careful e.g creating high latencies in the worker thread which results in the sample queue running low on data. Running at 'THREAD_PRIORITY_TIME_CRITICAL' under the normal scheduler just seems to work better for that thread - and the timers are normally pretty good ('Derr:' is usually much less than 1ms on my system).</p><p></p><p>I don't want to put anyone off trying things, but don't expect miracles by using MMCSS <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Tony</p></blockquote><p></p>
[QUOTE="Owlsroost, post: 656367, member: 83973"] I have tried using MMCSS for the 'scheduler' thread in the past - the code is still there, commented out (and the other two threads [B]do [/B]use MMCSS). I stopped using MMCSS for the 'scheduler' thread because it seemed to have side effects which made the overall performance worse. MMCSS seems to be a very 'aggressive' scheduler, so it's all too easy to degrade the performance of other threads if you're not careful e.g creating high latencies in the worker thread which results in the sample queue running low on data. Running at 'THREAD_PRIORITY_TIME_CRITICAL' under the normal scheduler just seems to work better for that thread - and the timers are normally pretty good ('Derr:' is usually much less than 1ms on my system). I don't want to put anyone off trying things, but don't expect miracles by using MMCSS :) Tony [/QUOTE]
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