64bit snakeoil raspberry pi installer.
#1
I have been tyrying to get a ubuntu realtime kernel running on a pi. The problem is ubuntu must be 64 bit to install the realtime kernel. So to install snakeoil I need a 64 bit installer. Edit: I may have found a way Smile opps nope. I guess I will need a 64 bit snakeoil to get ubuntu running a realtime kernel on ubuntu on pi.
John
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  • uglymusic, hkphantomgtr
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#2
Start a poll??? You should be able to edit your original post and add poll questions.

If enough people want 64 bit Pi I can abandon Raspbian and move on to Ubuntu Pi.. Which is 64 bits...  Can only support one platform though as hardware resources are still limited.
Snakeoil Operating System - Music, your way!
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#3
(24-Feb-2023, 04:56 PM)agent_kith Wrote: Start a poll??? You should be able to edit your original post and add poll questions.

If enough people want 64 bit Pi I can abandon Raspbian and move on to Ubuntu Pi.. Which is 64 bits...  Can only support one platform though as hardware resources are still limited.

Thanks for the reply. At this time the raspbian 32bit is still the best choice with the limited resources available. I have two pi 3b with snakeoil os, and have a new pi on the way. I will just experiment  with the new pi 4 and Ubuntu 22.04 and the realtime kernel, allo dacs and mpd. It maybe a realtime kernel doesn't make a sonic difference for my ears.  Whatever the future brings I will continue with snakeoil os powering my audio hardware.

thanks for all your hard work,

John
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#4
(25-Feb-2023, 04:45 AM)criminalzen Wrote:
(24-Feb-2023, 04:56 PM)agent_kith Wrote: Start a poll??? You should be able to edit your original post and add poll questions.

If enough people want 64 bit Pi I can abandon Raspbian and move on to Ubuntu Pi.. Which is 64 bits...  Can only support one platform though as hardware resources are still limited.

Thanks for the reply. At this time the raspbian 32bit is still the best choice with the limited resources available. I have two pi 3b with snakeoil os, and have a new pi on the way. I will just experiment  with the new pi 4 and Ubuntu 22.04 and the realtime kernel, allo dacs and mpd. It maybe a realtime kernel doesn't make a sonic difference for my ears.  Whatever the future brings I will continue with snakeoil os powering my audio hardware.

thanks for all your hard work,

John
OK i found a solurtion, at least for me, after all my attempts at obtaining a realtime/low latency kernel on the web I found someone who has made an image of bullseye with a  preempt_rt kernel (https://github.com/guysoft/RealtimePi). I have made two images for my two pies and snakeoil installs fine and it works well. The builder also explains how to create your own image, if you are uncomfortable with using his . Thls appears to be a simple way to accomplish using a realtime/preempt kernel  with snakeoil 32bit. I must say I do hear a difference between stock and his kernel. On my system it produces deeper and clearer bass, better clarity and depth on mid and top. You might not hear what I hear, but I think you will notice some positive changes.

I was going to ask where to install cycletest so the link on the system section would run the program?

Thanks.
John
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#5
If link does not work, use this command for time being
sudo cyclictest -t4 -p 90 -N -s -i 10000 -l 10000 -q

You should be running it several times to get a meaningful picture.  The most important number is the max latency.
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#6
Thanks for the info ..

John
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#7
(27-Feb-2023, 11:44 AM)Snoopy8 Wrote: If link does not work, use this command for time being
sudo cyclictest -t4 -p 90 -N -s -i 10000 -l 10000 -q

You should be running it several times to get a meaningful picture.  The most important number is the max latency.

After an install of the rt-tests programs I am able to run it from snakeoil  system page. My figures are -

T: 0 ( 1133) P:80 I:10000 C:  10000 Min:  74739 Act:  169273 Avg:  177398 Max: 7955413
T: 1 ( 1134) P:80 I:10500 C:   9525 Min:  58579 Act:  188261 Avg:  186285 Max: 9866748
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#8
(28-Feb-2023, 08:01 AM)criminalzen Wrote:
(27-Feb-2023, 11:44 AM)Snoopy8 Wrote: If link does not work, use this command for time being
sudo cyclictest -t4 -p 90 -N -s -i 10000 -l 10000 -q

You should be running it several times to get a meaningful picture.  The most important number is the max latency.

After an install of the rt-tests programs I am able to run it from snakeoil  system page. My figures are -

T: 0 ( 1133) P:80 I:10000 C:  10000 Min:  74739 Act:  169273 Avg:  177398 Max: 7955413
T: 1 ( 1134) P:80 I:10500 C:   9525 Min:  58579 Act:  188261 Avg:  186285 Max: 9866748

Wooh.  It's terribly high!!
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#9
(28-Feb-2023, 08:50 PM)hkphantomgtr Wrote:
(28-Feb-2023, 08:01 AM)criminalzen Wrote:
(27-Feb-2023, 11:44 AM)Snoopy8 Wrote: If link does not work, use this command for time being
sudo cyclictest -t4 -p 90 -N -s -i 10000 -l 10000 -q

You should be running it several times to get a meaningful picture.  The most important number is the max latency.

After an install of the rt-tests programs I am able to run it from snakeoil  system page. My figures are -

T: 0 ( 1133) P:80 I:10000 C:  10000 Min:  74739 Act:  169273 Avg:  177398 Max: 7955413
T: 1 ( 1134) P:80 I:10500 C:   9525 Min:  58579 Act:  188261 Avg:  186285 Max: 9866748

Wooh.  It's terribly high!!

Let me try some changes.. I think the numbers are because of errors in installing program not kernel..

John
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#10
(28-Feb-2023, 09:39 PM)criminalzen Wrote:
(28-Feb-2023, 08:50 PM)hkphantomgtr Wrote:
(28-Feb-2023, 08:01 AM)criminalzen Wrote:
(27-Feb-2023, 11:44 AM)Snoopy8 Wrote: If link does not work, use this command for time being
sudo cyclictest -t4 -p 90 -N -s -i 10000 -l 10000 -q

You should be running it several times to get a meaningful picture.  The most important number is the max latency.

After an install of the rt-tests programs I am able to run it from snakeoil  system page. My figures are -

T: 0 ( 1133) P:80 I:10000 C:  10000 Min:  74739 Act:  169273 Avg:  177398 Max: 7955413
T: 1 ( 1134) P:80 I:10500 C:   9525 Min:  58579 Act:  188261 Avg:  186285 Max: 9866748

Wooh.  It's terribly high!!

Let me try some changes.. I think the numbers are because of errors in installing program not kernel..

John

The BIOS / CMOS setting and hardwares also play a role.
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