Call for testers! Daphile

[sedest]

Latest Daphile version now supports native DSD replay. Pretty cool stuff! Thanks Kimmo!

[hifinme]

Latest Daphile version now supports native DSD replay. Pretty cool stuff! Thanks Kimmo!

How is it different from previous version where it supports DSD playback ?

[sedest]

No need for DoP encapsulation.

[Core32]

My limited knowledge of this still leaves me confused a bit.

Can anyone describe how this is transmitted over USB to a DAC or does this apply to only within the PC itself?

Such that the PCs L/R analog channels are the output to the amp?

[sedest]

Daphile is pushing things even further... Latest pre-release version (15.11-b061252-x86_64-rt) supports PCM to DSD conversion.

[Core32]

Where in the settings does this option lie?

I see DSD to PCM but not the reverse.

[sedest]

On DSD support, select Native or DoP. Then, on PCM resampling, select Convert PCM to DSD. For now, this is only supported if LMS runs on same hardware as the Player.

[Possum Jenkins]

Where in the settings does this option lie?

I see DSD to PCM but not the reverse.

 

Setting location attached

 

I'm running this version, daphile-15.11-b080743-x86_64-rt

 

Can't get it to go to DSD128 yet and my DAC does support it. Any advice welcome.

[Core32]

Found it. Thanks very much.

[Guest]

Any one here using the RT version who feels comfortable ssh'ing into Daphile to try a small and VERY noticeable [to me] tweak?

 

If so try this;

 

chrt -f -p 99 'input the PID of the four ksoftirqd threads here'....example: chrt -f -p 99 3

 

taskset -p 03 'input the PID of squeezelite here'.......example: taskset -p 03 3166

 

Report back please...to go back to normal just reboot...no harm done.

[Guest]

Any one here using the RT version who feels comfortable ssh'ing into Daphile to try a small and VERY noticeable [to me] tweak?

 

If so try this;

 

chrt -f -p 99 'input the PID of the four ksoftirqd threads here'....example: chrt -f -p 99 3

 

taskset -p 03 'input the PID of squeezelite here'.......example: taskset -p 03 3166

 

Report back please...to go back to normal just reboot...no harm done.

 

Forgot to add one more

 

chrt -f -p 99 'input the PID of the real time clock -rtc0'

 

BTW this is for computers with multiple cores...ie most modern cpu's

[Possum Jenkins]

Forgot to add one more

 

chrt -f -p 99 'input the PID of the real time clock -rtc0'

 

BTW this is for computers with multiple cores...ie most modern cpu's

 

 

A very basic question. how do you get the PIDs and what benefits are you noticing? I'm in for a test!

[Possum Jenkins]

A very basic question. how do you get the PIDs and what benefits are you noticing? I'm in for a test!

 

Got it, I think. ps ax | grep kso

 

There's a new iso out too if anyone is interested.

[Guest]

Got it, I think. ps ax | grep kso

 

There's a new iso out too if anyone is interested.

 

ps -e will list everything

 

ps -eLo pid,cls,rtprio,pri,nice,cmd | grep -i "irq" will show the softirq and rtc0 threads

[Guest]

ps -e will list everything

 

ps -eLo pid,cls,rtprio,pri,nice,cmd | grep -i "irq" will show the softirq and rtc0 threads

 

Okay so after playing around with this today I decided that changing the 4 softirq's and rtc0 is about tuning not just 99. I like the cpu affinity for squeezelite though.

[Guest]

Okay so after playing around with this today I decided that changing the 4 softirq's and rtc0 is about tuning not just 99. I like the cpu affinity for squeezelite though.

 

I see squeezelite changes its pid with every boot so I used

 

taskset -c -p 03 $(pidof squeezelite)

 

I ended up making a script and putting it into the /etc/local.d folder

 

#!/bin/sh

sleep 10

chrt -f -p 83 3

chrt -f -p 83 21

chrt -f -p 83 30

chrt -f -p 83 39

taskset -c -p 03 $(pidof squeezelite)

 

save it as whateveryouwant.start <----needs to end with .start

 

Going to keep playing with the chrt values until I dial it in just right.

 

~~~~~~~~~~~~~~~~

 

Next up....unbind all the usb ports [hardware] from being scheduled ie pooled. I don't use any PCIe, hd etc but I notice a whole lot of unnecessary tasks.

 

More about unbinding

https://lwn.net/Articles/143397/

[Possum Jenkins]

I see squeezelite changes its pid with every boot so I used

 

taskset -c -p 03 $(pidof squeezelite)

 

I ended up making a script and putting it into the /etc/local.d folder

 

#!/bin/sh

sleep 10

chrt -f -p 83 3

chrt -f -p 83 21

chrt -f -p 83 30

chrt -f -p 83 39

taskset -c -p 03 $(pidof squeezelite)

 

save it as whateveryouwant.start <----needs to end with .start

 

Going to keep playing with the chrt values until I dial it in just right.

 

~~~~~~~~~~~~~~~~

 

Next up....unbind all the usb ports [hardware] from being scheduled ie pooled. I don't use any PCIe, hd etc but I notice a whole lot of unnecessary tasks.

 

More about unbinding

https://lwn.net/Articles/143397/

 

This is super helpful, especially the scripting. Keep it coming, I'm testing with the RT build too

[Guest]

This is super helpful, especially the scripting. Keep it coming, I'm testing with the RT build too

 

I'm trying all my usually Linux tweaks

 

you might want to add this to the bottom of the script

 

echo 0 > /proc/sys/vm/swappiness

 

swappiness was set at 60!

 

btw make sure you have one empty line at the end of the script

[Possum Jenkins]

I'm trying all my usually Linux tweaks

 

you might want to add this to the bottom of the script

 

echo 0 > /proc/sys/vm/swappiness

 

swappiness was set at 60!

 

btw make sure you have one empty line at the end of the script

 

 

Thanks for that, having some issues getting it to run. Script appears ok and in the right dir but when I check the PIDs they're all still default values..

[Guest]

Thanks for that, having some issues getting it to run. Script appears ok and in the right dir but when I check the PIDs they're all still default values..

 

chmod 755 *.start

[joelha]

Got it, I think. ps ax | grep kso

 

There's a new iso out too if anyone is interested.

 

Thanks for the information.

 

What does this ISO add to Daphile?

 

Joel

[Guest]

Spent the weekend tweaking and listening to Daphile on a itx/i7/16gig Ram board vs. RPI-bv2 and BBB [both using Rune Audio with every tweak I can throw at it.

 

ITX board and ARM boards have separate maxed out power supplies powered by Balanced + Regenerated Power.

 

RPI-b V2 sounds better than BBB [far more organic and natural, full of details]

 

ITX has the slight edge over the RPI in that is has more 'swing' it is able to reach deeper into anything played [only with cpu affinity] but it requires tweaking and tuning to do so......

 

The stock value performer goes to RPI/RuneAudio hands down at about 1/10th the cost of the ITX setup....tweaked it goes to ITX/Daphile hands down. FWIW, both have very similar tweaks but the ITX board and Daphile is able to pull of greater performance.

[joelha]

Is there a way to automatically copy files to the ram drive before they're played or is manual copying the only way?

 

Joel

[HenSch]

Hi Kimmo,

 

first of all a big 'thank you' for all the work that must have been put into that project. The result is really great indeed!

 

I'm running Daphile 64bit RT on a thin client (Futro S550) which features an internal CF-card for storage. The SQ is best when the music is played directly from the CF card. Unfortunately only max. 16GB capacity is supported by the main board.

 

So a really neat feature would be that the tracks from the current playlist are automatically copied to the internal CF card and being played from there. So basically something Aurender is doing with their streamers, where the music files from the playlist are copied to a dedicated SSD.

 

What do you think?

 

Cheers, Henning

 

P.S.: RAM is only 1GB, which seems to be too less for RAM play of an entire album

[siuping]

Hi All,

 

Just wanna share some of my findings on some configurations in Daphile according to the SQ...

 

1. Network drive mapping using CIFS sounds better than NFS - Although the file transmission speed (file copy function) under NFS is significantly faster than CIFS, CIFS definitely gives a (much) better resolution in SQ. I have confirmed this with some guys who're using NFS before.

 

 

2. Default Squeezelite sounds better than SqueezePlay - Seriously, they are not just only "hearing the difference". I think you may not concern since the squeezelite is the default option.

 

Thanks for the tweaks of the startup script. I believe that would be an great improvement in SQ. I have been disabled all unnecessary ports and devices in BIOS and the SQ improved much as well.