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The time now is Sat 23 Jan 2021, 03:40 All times are UTC - 4 |
 Forum index » Advanced Topics » Puppy Derivatives |
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Tahr-RT-6.0.6 with a real time kernel 4.14.63-rt37
Moderators: Flash, JohnMurga |
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| Page 1 of 2 [21 Posts] | Goto page: 1, 2 Next |
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rockedge
 Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
This is a build of tahr-6.0.6-uefi with a real time kernel Download Link -> http://rockedge.org/kernels/
The kernel 4.14.63 was compiled using the kernel-kit with the Real Time patches-4.14.63-rt40.tar.xz applied and aufs=4.14.56+
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Smithy
 Joined: 12 Dec 2011 Posts: 1157 |
hi rockedge, just been running your kernel up the flagpole for a couple of days. Running nicely and low latency in jack/qtractor. Hard Info/ Available entropy in dev/random=healthy. A non pae version would be good if you ever feel inclined. Just noticed how pae kernels really use up the ram on little computers. |
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ITSMERSH
Joined: 02 May 2018 Posts: 911 |
Hi. I want to try this by changing the kernels in my Art Studio (tahr602). Do I need to rename the kernel modules sfs to the zdrv sfs? If not, how to load at boot? _________________ RSH Beware of the Dog ähem nic007!  |
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rockedge
Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
download the kernel in your installed frugal puppy delete or rename vmlinuz and zdrv_xxx_xxx.sfs Something like vmlinuz-original and zdrv_xxx_xxx.sfs.original now extract the kernel you downloaded. there are 2 files copy those into your frugal install and rename them to match the vmlinuz and zdrv_xxx_xxx.sfs you deleted or renamed reboot. that is all there is to it. and for you I would try the full rt version...I have been using LMMS to test and so far good results. on Tahr, Xenial and Bionic all 3 just built using woof-CE |
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rockedge
Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
a bionicpup fresh from woof-CE out-fitted with the 4.14.63-rt37 Full RT kernel
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roadkill13
Joined: 10 Aug 2011 Posts: 155 Location: United States |
I changed to this kernel in XenialPup 7.5. It works quite well on my rig. |
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rockedge
Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
good idea .... so here it is kernel 4.14.63-rt37_full-rt_nopae Download -> http://rockedge.org/kernels/ |
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Smithy
Joined: 12 Dec 2011 Posts: 1157 |
Thanks for making that available. I tried it on my little netbook, but it took a lot of ram up. Is it definitely no-pae? When I boot up with a pae kernel, the ram container on the desktop is always kind of half empty, but say with Joseph's pupjibaro (non pae) 3.17xx it is full. |
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darry19662018
Joined: 31 Mar 2018 Posts: 731 Location: Rakaia |
Thank you Rockedge for this updated Tahr with a newer kernel runs sweetly on my Dell D620. 
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rockedge
Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
Smithy, I double checked and the kernel is definitely no-pae I will test to see what the RAM usage looks like on my IBM ThinkPad T-42 using this tahr and kernel combo....
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bigpup
 Joined: 11 Oct 2009 Posts: 13981 Location: S.C. USA |
What is the difference in a RT kernel and a normal kernel? Does the RT kernel give you something you need? Some added features? _________________ The things they do not tell you, are usually the clue to solving the problem. When I was a kid I wanted to be older.... This is not what I expected 
YaPI(any iso installer) |
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rockedge
Joined: 11 Apr 2012 Posts: 1874 Location: Connecticut, United States |
a very general rule of thumb
I made this kernel(s) for running MIDI keyboards using LMMS and recording it with Audacity or exported to .wav object detection using machine learning such as the opencv libraries for robot optics or security now with a Tahrpup one can build a Terminator 
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Smithy
Joined: 12 Dec 2011 Posts: 1157 |
Thanks Rockedge, I was running it in Artful, possibly I need to tweak the initrd.gz or something. I made an only i915 barebones Artful for my netbook, but the pae's are not very good with it. |
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Moat
 Joined: 16 Jul 2013 Posts: 968 Location: Mid-mitten |
When doing more involved audio recording (as in studio music recording/production), there exists a time lag between the audio input into the computer (say, a person singing into a microphone) and the final output sound, due to all of the processing required by the recording software that the signal is being fed through. That lag is called "latency", and can be significant enough to at minimum be annoying, and often bad enough to make listening to yourself (via software post-processed monitoring) in real-time completely unuseable when trying to keep time/tempo with the music, as an example (similar to the time lag experienced when talking on cell phones). A Real Time kernel is specifically tweaked to direct CPU processing & data handling towards reducing that time lag/latency during recording/monitoring to a minimum - and the reduction can be very noticeable in use, often reduced to the point of being un-noticable (somewhere around ~10-15 milliseconds and below), and thus no longer an issue. Very important and useful when doing more complex audio recording! Windows and Mac kernels do this OOTB, AFAIK, and have for quite some time (I've done a fair amount of such audio multi-track recording on Windows over the years - even on 98 - with very acceptable latencies - even on old PIII's). Bob |
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ITSMERSH
Joined: 02 May 2018 Posts: 911 |
Hi. I'm using the real time kernel now for a few days and it seems to be pretty stable. Though, the problem I was hoping to solve by the use of a real time kernel still remains. Getting Xrun some frames might be lost messages still in Qtractor. I'm using it in combination with Hydrogen and ZynAddSubFx. The Xrun some frames might be lost messages appearing only on the ZynAddSubFx tracks and they disappear when muting single tracks (which couldn't be of any solution). 
_________________ RSH Beware of the Dog ähem nic007! |
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Tahr-RT-6.0.6 with a real time kernel 4.14.63-rt37
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