On 04.04.2015 01:53 AM, Robert Dinse wrote: > Thank you. Duh I don't know how I could stare at that directory > and not > notice the missing extension. Ugh.
You're not alone, this stuff happens to me too... More often than I'd like. > Thank you for your help. The 3.19.3 kernel I built is not only > preemptive but also stripped of most of the stuff I don't use. I also > turn off most of the kernel hacking and profiling stuff since it adds > a tiny bit of overhead. > > It helped considerably over either the stock kernel or the one > off of > el repo (the el repo 3.19.3-ml kernel), however the video isn't 100% > fluid. > > With the el repo kernel I got around maybe 10 frames per second, > with > my custom kernel I get around 30 frames per second most of the time > but there > are occasional glitches where the video will freeze for maybe a third > of a > second. > > Under Ubuntu, a kernel built the same way, the video is fluid. > There > must be something in CentOS eating more resources. I wouldn't be sure about the "eating more resources" part. Unless something spikes in top/htop, maybe. But given you've tried with a rt kernel as provided by Ubuntu, there are multiple other things to consider: - the Ubuntu kernel was patched by Canonical (most of the time quite heavily when comparing a vanilla kernel to a stock Ubuntu kernel) - the Ubuntu kernel may *additionally* include other RT patches that are neither part of their stock, nor the vanilla kernel - it may use different options from what you have There's a good chance this influences what you're seeing. If you really want to find out what leads to this differing behavior, you're in for a ride (and quite possibly a rather frustrating one, too.) Mihai
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