Hi Michael, Your matrix makes me wonder: are you trying to play from a launchd daemon?
Try taking an Instruments trace that captures thread scheduling activity. It sounds like the daemon is in a throttled state, which would show in a kernel or Instruments trace as having its threads running at a very low priority. Doug > On Dec 26, 2015, at 10:11 , Michael McNeela <[email protected]> wrote: > > Should you be curious, here’s what I’ve tried narrowing down so far; > > <Screen Shot 2015-12-26 at 18.06.39 copy.jpeg> > > Michael > 07595247282 > >> On 26 Dec 2015, at 16:55, Michael McNeela <[email protected] >> <mailto:[email protected]>> wrote: >> >>> On 26 Dec 2015, at 16:48, Cyril Blanc <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Where are your video files ? >> >> On the internal SSD >> >>> What Mac do you use ? >> >> A late 2014 Mac mini (Macmini7,1), factory-configured to 2.6 GHz i5, 8GB >> RAM, 256GB SSD. The issue presents itself on three Macs of the same hardware >> configuration (bought & configured at roughly the same time), across >> 10.10.3, 10.10.5 and 10.11. I’m puzzled. >> >> Michael >> 07595247282 >> >>>> On 26 Dec 2015, at 16:50, Michael McNeela <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Thanks for the input everybody. I should clarify that I’m simply playing >>>> regular ol’ video files using Cocoa’s AVPlayer; nothing spectacular, and >>>> the video playback continues unaffected as the audio stutters and drops. >>>> It’s incredibly odd. >>>> >>>> Oh, and audio is being outputted through the Mac’s headphone port; not >>>> external audio interface via USB/FireWire, etc. >>>> >>>> I’ve stopped SSH attempts bumping the CPU, just in case they were related, >>>> but the issue persists, so now I’m at a loss. >>>> >>>> Michael >>>> 07595247282
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