kernel compiling in woof-ce

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s243a · #361 Post by **s243a** » Sun 14 Feb 2016, 07:42

peebee wrote:Hi Stemsee

It would be interesting to know why you've gone for the "rt" = "real time"?? versions of the kernels this time - and what differences this might make to their performance in a desktop environment??

Do you intend to only build rt variants from now on?

Many thanks for your efforts
Cheers
peebee

That would be pretty cool. I'd like to see a realtime version of puppylinux. That said, I'm sure there is much much more to building an effective realtime system than having the right kernel.

stemsee · #362 Post by **stemsee** » Sun 14 Feb 2016, 09:25

@peebee

I used to build real-time kernels for ubuntu, then when I switched to puppy I had problems patching rt and adding aufs. I just hapened to search at kernel archives and found rt patches for recent kernels so i gave them a go and they work. During configure I am not able to compile to completion if Fully pre-emptible real time is selected, this 64 bit kernel has basic rt, and the pae has voluntary pre-emptible desktop. There are five options

1) non preemptible
2) voluntary (usual for puppy)
3) low-latency desktop
4) Basic rt
5) Fully preemptible

Most of the rt patches are now included in the kernel anyway. And I was curious to try something new. I have not noticed any performance increase. Perhaps after adding rtirq package and optimising a number of other settings to make use of rt kernel: there are some useful websites detailing system tuning for rt audio/video system.

@s243a
Iowtech provides studio 1337, multimedia distro, based on puppy linux slacko, every package compiled against a fully preemptible real time custom kernel.

here
http://www.getstudio1337.com/

peebee · #363 Post by **peebee** » Sun 14 Feb 2016, 09:43

All seems pretty snappy here....

"Stuttering" printing during initial boot has gone....
Can select savefiles using usb keyboard during boot

There does seem to be some spurious firmware directories in /lib/firmware though... see screenie

Many thanks
peebee

stemsee · #364 Post by **stemsee** » Sun 14 Feb 2016, 09:47

That is wierd that those directories appeared! Ahh ... I know ... I am booting with a tainted modules.sfs so they copied in again! darn it!!!!

I will have to repackage ... again!!!

moeppyfan · #365 Post by **moeppyfan** » Sun 14 Feb 2016, 18:51

stemsee wrote:kernel-4.4.1-EmSee-nopae-i486-rt3
https://drive.google.com/file/d/0B_gaN1 ... sp=sharing

Hello stemsee,

This link seems to go to the previous huge-4.4.0-EmSeei486 (29M) instead of kernel-4.4.1-EmSee-nopae-i486-rt3 for me.

stemsee · #366 Post by **stemsee** » Sun 14 Feb 2016, 18:59

Thanks @ moeppyfan

I have removed the link until corrected.

In the mean time I recompiled 64 bit kernel because kernel modules for wireless were missing for my system!

4.4.1-EmSee-64-rt6
https://drive.google.com/file/d/0B_gaN1 ... sp=sharing

sources
https://drive.google.com/file/d/0B_gaN1 ... sp=sharing

stemsee · #367 Post by **stemsee** » Sun 14 Feb 2016, 21:12

4.4.1-EmSee-nopae-rt6 i486 no smp
https://drive.google.com/file/d/0B_gaN1 ... sp=sharing

moeppyfan · #368 Post by **moeppyfan** » Sun 14 Feb 2016, 22:59

stemsee wrote:4.4.1-EmSee-nopae-rt6 i486 no smp
https://drive.google.com/file/d/0B_gaN1 ... sp=sharing

Thanks stemsee. Nice work!

stemsee · #369 Post by **stemsee** » Wed 17 Feb 2016, 18:42

Here is SUKK-2016

Updated configs + rt6 patch

other code added to not copy in firmware from running system if compiling on other linux system.

https://drive.google.com/file/d/0B_gaN1 ... GZlaHNnU0E

Revolverve · #370 Post by **Revolverve** » Thu 18 Feb 2016, 18:58

stemsee,

Nice work.For sure you could find some folks interested in rt preempt,more then just audio oriented ones,as machinekit(linuxcnc) for cnc,3d printer,laser,etc now got good latency result with rt-preempt .Dreaming end user point of view here..having no clues of the amount of work needed to achive it,well,lets say if based on my few attempts to learn chinese or kernel compiling/patching gave me an idea of it...and appreciate the work done.
Testing K4.4.1 rt on Tahrpup64 ,no real speed improvement here neither problems,for now.

stemsee · #371 Post by **stemsee** » Thu 18 Feb 2016, 19:17

hi Revolverve

To get the most of rt kernel you will need to tune the system to raise certain threads to realtime priority. rtirq package

http://openavproductions.com/real-time-latency-tuning/

I notice the difference using the 64bit rt6 kernel on a core i5 desktop @ 3.05ghz. Hardinfo>CPU Blowfish scored 3 !!!

regards.

stemsee · #372 Post by **stemsee** » Sat 20 Feb 2016, 10:21

kernel-4.4.2-emsee-64-amd64.deb for full installs or DebianDog or Debian/Ubuntu

linux-image-*.deb

https://drive.google.com/file/d/0B_gaN1 ... zhnbzhiSlU

linux-headers-*.deb
https://drive.google.com/file/d/0B_gaN1 ... 1BGRVNOVVk

peebee · #373 Post by **peebee** » Sun 21 Feb 2016, 10:49

Hi Stemsee

Just tried compiling drivers in 4.4.1-pae-rt3

Small problem in that the /lib/modules are named differently:

/lib/modules/4.4.1-EmSee-32-pae in kernel sources

/lib/modules/4.4.1-EmSee-32-pae-rt3 in the zdrv

Easily solved by just copying the 2 links across - but thought you should know...

Cheers
peebee

stemsee · #374 Post by **stemsee** » Sat 05 Mar 2016, 16:05

Untested

huge-4.4.4-EmSeei686

https://drive.google.com/file/d/0B_gaN1 ... WFqSkg4STA
i686 sources
https://drive.google.com/file/d/0B_gaN1 ... 3lra1dlQm8

huge-4.4.4-EmSee64

https://drive.google.com/file/d/0B_gaN1 ... C1ZV3RiQ1U

peebee · #375 Post by **peebee** » Sat 05 Mar 2016, 16:48

stemsee wrote:Untested

huge-4.4.4-EmSeei686

https://drive.google.com/file/d/0B_gaN1 ... WFqSkg4STA
i686 sources
https://drive.google.com/file/d/0B_gaN1 ... 3lra1dlQm8

Downloaded i686 to test....

Noticed big change in size - 25MB instead of the 55MB of 4.4.1....

Seems like there maybe quite a lot of firmware missing?

Also note from /lib/modules that this one is "rt9" - is that different to "rt3"??

Cheers & thanks
peebee

jlst · #376 Post by **jlst** » Sat 05 Mar 2016, 17:51

hi stemsee, now that you're compiling brand new kenerls... how about compiling the full kernel, or something like that, I see here

http://archive.archlinux.org/repos/2016 ... e/os/i686/

That the kernel is about 56mb, xz compressed, the firmware is in another packages 36mb xz compressed.

I tested your 4.4.1 kernel in a 2003 machine, and it worked fine

peebee · #377 Post by **peebee** » Sat 05 Mar 2016, 18:04

stemsee wrote:Untested

huge-4.4.4-EmSeei686

Test not too good I'm afraid - would not boot to desktop when substituted for a working 4.4.1 vmlinuz/zdrv

nvidia graphics - nouveau usually works without fail.

even tried making a ydrv with just /lib/firmware from 4.4.1 but that didn't help...

couldn't see anything in lsmod or dmesg to suggest why

stemsee · #378 Post by **stemsee** » Sun 06 Mar 2016, 10:22

@peebee

You must have missed something in your test! I have just used my newkern script to install the new kernel from huge package and it is working wonderfully. The modules sfs is only 21mb big, and everything is up and running.

Here is the script. Just have huge-4.*.tar.bz2 in ~/Downloads

Code: Select all

#!/bin/sh 
# Untar huge-kernel-archive.tar.bz2 
# For all pups! 

downkernarchivefn () { 
. /etc/DISTRO_SPECS 
echo "Defaultbrowser will now open download a kernel package in woof-ce format huge-xxx-name.tar.bz2 
to ~/Downloads."
sleep 3

defaultbrowser http://tinyurl.com/gt8eltx &

echo "Press Enter when ready!" 
read dummy 
} 
downkernarchivefn 

getbootfn () { 
echo "Now enter the path to the dir where your vmlinuz (kernel) is: 
e.g. /mnt/sda2/Tahr/ or /mnt/home/EmSee/" 
read BOOTPATH 
} 
getbootfn 
if [ -z "$BOOTPATH" ]; then 
   getbootfn 
fi 
if [ ! -e $HOME/Downloads/huge-*.tar.bz2 ]; then 
   downkernarchivefn 
else 
   kern=`ls $HOME/Downloads/huge-*.tar.bz2 | yad --title "Select Kernel Archive to install" --list --column="From these" --width=310` 
      if [[ -z "$kern" ]]; then 
         exec "$0" 
         exit 
      fi 
fi 
kern=`echo $kern | cut -f1 -d '|'`
cd $HOME/Downloads 
[[ ! -z "$kern" ]] && tar -vxjf "$kern" 
cd "$kern" 
[[ "$BOOTPATH"vmlinuz ]] && rename vmlinuz vmlinuz-bak "$BOOTPATH"vmlinuz 
[[ vmlinuz-*i686 ]] && cp -f vmlinuz-*i686 "$BOOTPATH"vmlinuz 

[[ "$BOOTPATH""$DISTRO_ZDRVSFS" ]] && rename "$DISTRO_ZDRVSFS" "$DISTRO_ZDRVSFS"-bak "$BOOTPATH"/"$DISTRO_ZDRVSFS" 
[[ kernel-modules.sfs*i686 ]] && cp -f kernel-modules.sfs*i686 "$BOOTPATH""$DISTRO_ZDRVSFS" 

[[ "$BOOTPATH"vmlin64 ]] && rename vmlin64 vmlin64-bak "$BOOTPATH"vmlin64 
[[ vmlinuz-*x86_64 ]] && cp -f vmlinuz-*x86_64 "$BOOTPATH"vmlin64 

[[ "$BOOTPATH""$DISTRO_YDRVSFS" ]] && rename "$DISTRO_YDRVSFS" "$DISTRO_YDRVSFS"-bak "$BOOTPATH"/"$DISTRO_YDRVSFS" 
[[ kernel-modules.sfs*x86_64 ]] && cp -f kernel-modules.sfs-*x86_64 "$BOOTPATH""$DISTRO_YDRVSFS" 

[[ "$BOOTPATH"vmlin48 ]] && rename vmlin48 vmlin48-bak "$BOOTPATH"vmlin48
[[ vmlinuz-*i486 ]] && cp -f vmlinuz-*i486 "$BOOTPATH"vmlin48 
[[ kernel-modules.sfs*i486 ]] && cp -f kernel-modules.sfs*i486 "$BOOTPATH""$DISTRO_ADRVSFS" 
sync 
exit 0 
------

peebee · #379 Post by **peebee** » Mon 07 Mar 2016, 09:58

stemsee wrote:@peebee
You must have missed something in your test!

Hi Stemsee

Re-downloaded to make sure I didn't have a bad'un - both same md5 = 0ac4e9cd4eecfbe3a520f24d204964d7

Tested on my laptop with intel graphics - worked AOK

Have now tested on my desktop with nvidia graphics (304.131 legacy type) using both a slacko and a tahrpup base, and in both cases the system does not boot to a desktop (whereas both do with k4.4.1)....

Would be interested to hear from somebody else with nvidia graphics - maybe mine is getting too long in the tooth??

Cheers
peebee

stemsee · #380 Post by **stemsee** » Mon 07 Mar 2016, 12:58

@Peebee

Did you boot without savefile? Do you try pfix=nox ? And then run xorgwizard ?

To get the nvidia proprietary graphics drivers working you will need to install the kernel sources and then run the nvidia installer from outside of X on cli. It needs to compile the module/driver for the new kernel ... it cannot work otherwise (as far as I know (which isn't too far!)).

Nvidia driver installer package select here:
http://www.nvidia.co.uk/Download/Find.aspx?lang=en-uk

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kernel compiling in woof-ce