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MediaPortal 1
Development
General Development (no feature request here!)
5 Second CPU spikes with recent SVN builds
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<blockquote data-quote="bigj" data-source="post: 56734" data-attributes="member: 10940"><p>See subject.</p><p></p><p>Is anyone else experiencing this?</p><p>This occured with version after the 18th May, I think with SVN <=25th May.</p><p></p><p>I'm not using dvbt epg updates. Nor is there anything in the logs to indicate any software errors/exceptions. I've also disabled powermanagement. All process plugins are disabled apart from "tv.com parser" which won't disable.</p><p></p><p>I appreciate dailybuilds come with no guarantees, but I've been tracking this bug for a couple of weeks and I should raise it if it's not already understood.</p><p></p><p>Using sysinternals processexplorer:</p><p></p><p>Every 5 seconds: </p><p>CPU usage jumps from 25% to >80% sometimes maxing out CPU with obvious results of interrupted streams.</p><p>(The extra time is spent in the kernel.)</p><p></p><p>Examining the exe, the spike corresponds to this entry point:</p><p>mscorwks.dll!CreateApplicationContext</p><p>with massive number (hundreds) of context switches.</p><p>It's hard to get timing right - but thread stack may indicate it corresponds to sql access.</p><p>(This profile has same characteristics as dvb-t epg downloads which always caused me this sort of spiking, except this is disabled)</p></blockquote><p></p>
[QUOTE="bigj, post: 56734, member: 10940"] See subject. Is anyone else experiencing this? This occured with version after the 18th May, I think with SVN <=25th May. I'm not using dvbt epg updates. Nor is there anything in the logs to indicate any software errors/exceptions. I've also disabled powermanagement. All process plugins are disabled apart from "tv.com parser" which won't disable. I appreciate dailybuilds come with no guarantees, but I've been tracking this bug for a couple of weeks and I should raise it if it's not already understood. Using sysinternals processexplorer: Every 5 seconds: CPU usage jumps from 25% to >80% sometimes maxing out CPU with obvious results of interrupted streams. (The extra time is spent in the kernel.) Examining the exe, the spike corresponds to this entry point: mscorwks.dll!CreateApplicationContext with massive number (hundreds) of context switches. It's hard to get timing right - but thread stack may indicate it corresponds to sql access. (This profile has same characteristics as dvb-t epg downloads which always caused me this sort of spiking, except this is disabled) [/QUOTE]
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MediaPortal 1
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5 Second CPU spikes with recent SVN builds
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