More > JRiver Media Center 21 for Linux
JRiver Linux 21 problems - cpu usage laggy audio multiple distros
anton-sa:
yeah i hear you.
i see a new bios has JUST been released for the NUC in question. i will install and see... and will post back.
i can surely keep benchmarking and see if score improves..etc I cannot imagine a quadcore 1.6ghz (turbo upto 2.7ghz x 4) to not be enough...
the nuc5i5ryh is fairly new, i got the nuc(s) last week, there was a bios update for end of july. to date there have been 8 bios updates.
considering the device only came out jan/feb/march this year./ thats alot. perhaps more performance will unlock.. we will see. i will update here
mwillems:
--- Quote from: anton-sa on August 27, 2015, 03:35:31 am ---yeah i hear you.
i see a new bios has JUST been released for the NUC in question. i will install and see... and will post back.
i can surely keep benchmarking and see if score improves..etc I cannot imagine a quadcore 1.6ghz (turbo upto 2.7ghz x 4) to not be enough...
the nuc5i5ryh is fairly new, i got the nuc(s) last week, there was a bios update for end of july. to date there have been 8 bios updates.
considering the device only came out jan/feb/march this year./ thats alot. perhaps more performance will unlock.. we will see. i will update here
--- End quote ---
Also please try the two performance tuning tips I offered above; fixing your scaling and disabling the visualizer may give you enough extra "oomph" to put you over.
anton-sa:
Ok folks. an update.
using fedora core 22, my "math" score went upto 1420.. up from 1730 on other distro. but its such a small increase.
BAM! multichannel audio works perfectly now. cpu usage is mostly around 10 - 15% per core., but peaks at around 180% (45% per core +-)
to be honest i think pulseaudio has something to do with it, the other nuc.. identical setup, (my fedora unit) has pulseaudio removed, and only alsa.
i use this box for kodi, and kodi wont "see" my rotel hdmi device/processor with alsa.
I'll play around a bit and post more info here as i can.. but im very chuffed that its now working smoothly... and i even browsed some web pages while listening to music
system seems responsive also...
mwillems:
--- Quote from: anton-sa on August 27, 2015, 09:45:44 am ---Ok folks. an update.
using fedora core 22, my "math" score went upto 1420.. up from 1730 on other distro. but its such a small increase.
BAM! multichannel audio works perfectly now. cpu usage is mostly around 10 - 15% per core., but peaks at around 180% (45% per core +-)
to be honest i think pulseaudio has something to do with it, the other nuc.. identical setup, (my fedora unit) has pulseaudio removed, and only alsa.
i use this box for kodi, and kodi wont "see" my rotel hdmi device/processor with alsa.
I'll play around a bit and post more info here as i can.. but im very chuffed that its now working smoothly... and i even browsed some web pages while listening to music
system seems responsive also...
--- End quote ---
I can't tell if adding or removing pulse was what helped? If you're using pulse it resamples all audio to 48KHz by default so if removing pulse helped, that may be why. If it's better with pulse, I'd be suspicious that you're actually getting the specified sample rate.
That said, JRiver uses alsa by default, so unless you selected the "pulse" output device it shouldn't really matter for JRiver? Very mysterious.
anton-sa:
heres whats interesting, firstly, my rotel rsp1572 processor detects the sample rate, so previously it was indeed at 192khz.
I dont really know what the point of pulseaudio is expect maybe for production purposes, but all over the internet theres howto's of people removing pulse
in flavour of alsa for playback...
cpu usage is easily down 10-15% per core.
my other nuc (identical) has debian 8.1, i'll test. this will bother me till i find out why.. haha
oh yeah,. fedora 22 ships with linux 4.x kernel. ? perhaps this has something to do with it..
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