Start by running a make mrproper and make defconfig (if not using a x64 system specify in your post as the defconfig will be different for different architectures)
Finally, run time(make -j$(nproc)) and post the output here along with your hardware specs!
My result? Well, not the most scientific as I had this window open typing this post up while listening to music, but still pretty impressive I think…
@alenbasic
I have the Ryzen 3800X with Amd RX590 & 32 GB memory. So how do i do this as i have never compiled a kernel. So i download the kernel from kernel.org. Do i put it in a different directory? Then explain what i do and when i’m all done what then?
Well, we’re not going to do anything with this kernel when compiled, you can just delete it afterwards since it’s just for performance benchmark reasons. In terms of what to do more step by step:
Open a terminal
cd into a directory where you’ll want to download the file
Figured add in a bit lower end of a system, so did this on my Inspiron 5485 laptop. With, as alenbasic had, this window open and listening to some music…
Shit, I’ve got a few dozen cores free I could try that!! How many cores/threads/ram did you throw at it? Given I’m the only one at work that actually KNOWS how to manage the Nutanix appliances…noone would even realize it…
A long long time ago I dared to write a script and with a lot of support from a forum the automatic kernel building worked (v4).
Now IDK the correct path in arch (calling stat for ‘/boot/config-5.8.3-zen1-1-zen’ is not possible: file or directory not found) or if other things are needed.
Maybe someone wants to fix it or is inspired to program a completely improved version.
I have not searched the net if something like this already exists
Because it was/is a german forum the texts are also in german, sorry
diy_kernel
Let's go.
CA certificate "/etc/ssl/certs/ca-certificates.crt" was loaded
2020-08-23 02:43:17 URL:https://www.kernel.org/ [16609/16609] -> "-" [1]
Latest stable kernel is: 5.8.3
Current running kernel is: 5.8.3-zen1-1-zen
Download approved
Working folder is: /home/sgs/kernel_build
--2020-08-23 02:43:23-- https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.8.3.tar.xz
CA certificate "/etc/ssl/certs/ca-certificates.crt" was loaded
Resolving the host name cdn.kernel.org (cdn.kernel.org)... 151.101.1.176, 151.101.65.176, 151.101.129.176, ...
Connection setup to cdn.kernel.org (cdn.kernel.org)|151.101.1.176|:443 ...
HTTP request sent, waiting for response ... 200 OK
Length: 114473912 (109M) [application/x-xz]
Is stored in "linux-5.8.3.tar.xz".
linux-5.8.3.tar.xz 100%[=========================================================================>] 109.17M 6.39MB/s in 17s
2020-08-23 02:43:40 (6.38 MB/s) - "linux-5.8.3.tar.xz" stored [114473912/114473912].
The file linux-5.8.3.tar.xz is unpacked.
Change to the folder /home/sgs/kernel_build/linux-5.8.3
The .config is created from the existing config-5.8.3-zen1-1-zen
/home/sgs/.local/bin/diy_kernel: Line 156: ../kernel_gcc_patch/*.patch: file or directory not found
No *.patch in /home/sgs/kernel_build/kernel_gcc_patch available, no problem, continue
cp: calling stat for '/boot/config-5.8.3-zen1-1-zen' is not possible: file or directory not found
/home/sgs/.local/bin/diy_kernel: Error creating the .config
#!/bin/bash
# - 07.03.2018 -
#---- diy_kernel ---- Do it yourself_Kernel ----
#Script aus https://www.linuxmintusers.de/index.php?topic=47468.0
#Ermöglicht durch NeXxGeN, Nessie, Spartacus, PeLi, CLImate
#*Hoffentlich habe ich niemanden vergessen*
#Tutorial: "Kernel selbst kompilieren"
#https://www.linuxmintusers.de/index.php?topic=46911.msg662513#msg662513
#
# ${0##*/} Programname
# ${0%/*} Verzeichnis = verz=“${0%/*}“
Hilfe(){
echo "${0##*/} ist Dein automatisierter Kernelbauer. "
echo "Hilfe für ${0##*/} gibt es bei https://www.linuxmintusers.de"
exit
}
test "${1}" = "-h" -o "${1}" = "-help" -o "${1}" = "--help" && Hilfe
Exit(){
echo "$0: $2" >&2
exit "$1"
}
if ! zenity --question \
--title "- DIY Kernel -" \
--width='700' \
--ok-label="Ja" \
--cancel-label="Nein" \
--icon-name='system-software-update' \
--text "Dein *DIY-Kernel* setzt voraus, dass du weißt was du tust.\\n\\n\
<span color='#ff0000'><b>Benutzung auf eigene Gefahr.</b></span>\\n\\n\
<a href='https://www.linuxmintusers.de/index.php?topic=47468.0'>Hilfe</a>\\n\\n\
<a href='https://www.linuxmintusers.de/index.php?topic=46911'>\
Tutorial: Kernel selbst kompilieren</a>\\n\\n\\n
<span size='small'>\"Niemand weiß, was er kann, bis er es probiert hat...\"</span>\\n\\n\\n\\n\
<span size='xx-large'><span color='#ff0000'><b>Weiter?</b></span></span>" 2>/dev/null
then
exit 0
else
echo "Weiter geht's."
fi
url_kernelinfo='https://www.kernel.org/'
wget_timeout=10
workdir="$HOME/kernel_build"
patchdir="$workdir/kernel_gcc_patch"
ak=$(uname -r)
if ! kernelinfo="$( wget -nv -T $wget_timeout "$url_kernelinfo" -O- )"
then
Exit 1 'Fehler beim Download der Kernelinfos'
fi
if ! version="$( grep -A 1 'id="latest_link"' <<< "$kernelinfo" | grep -Po '(?<=\.tar\.xz">)[0-9]{1,2}\.[0-9]{1,2}\.[0-9]{1,2}(?=</a>)' )"
then
Exit 2 'Fehler beim Ermitteln der Versionsnummer'
fi
echo "Neuester stabiler Kernel ist: $version"
echo "Aktuell laufender Kernel ist: $ak"
current_kernel="${ak//-*/}"
if (( $( printf "%d%02d%02d" ${current_kernel//./ } ) >= $( printf "%d%02d%02d" ${version//./ } ) ))
then
if ! zenity --question \
--width='700' \
--timeout='30' \
--ok-label="Ja" \
--cancel-label="Nein" \
--icon-name='system-help' \
--title "Aktuell installiert - $ak" \
--text "<b>Aktueller geht nicht.\\n\\n\
Latest stable, auf kernel.org, ist $version.\\n\\n\
Abbruch des Scripts erfolgt in 30 Sekunden. \
\\n\\n<span color='#ff0000'> \
<span size='xx-large'>Download dennoch starten?</span></span></b>" 2>/dev/null
then
exit 0
else
echo 'Download genehmigt'
fi
fi
if ! [ -d "$workdir" ]
then
if ! mkdir "$workdir"
then
Exit 3 'Fehler beim Erzeugen eines Arbeitsordners'
fi
fi
if ! [ -d "$patchdir" ]
then
if ! mkdir "$patchdir"
then
Exit 31 'Fehler beim Erzeugen des Patchordners'
fi
fi
if ! cd "$workdir"
then
Exit 4 'Fehler beim Wechsel in den Arbeitsordner'
fi
echo "Arbeitsordner ist: $workdir"
if ! zenity --question \
--width='700' \
--ok-label="Ja" \
--cancel-label="Abbruch" \
--title "Aktuell installiert - $ak" \
--text "\\n\\n<b>Download von Kernel $version starten?</b>" 2>/dev/null
then
exit 0
fi
if ! wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$version".tar.xz
then
Exit 5 'Fehler beim Download der Kernels'
fi
echo "Die Datei linux-$version.tar.xz wird entpackt."
if ! tar xf linux-"$version".tar.xz
then
Exit 6 "Fehler beim entpacken von linux-$version.tar.xz"
fi
echo "Wechsel in den Ordner $PWD/linux-$version"
if ! cd "$workdir/linux-$version"
then
Exit 7 "Fehler beim Wechsel in den Ordner $PWD/linux-$version"
fi
echo "Die .config wird aus der vorhandenen config-$ak erstellt"
if ! zenity --question \
--ok-label="Ja" \
--cancel-label="Abbruch" \
--title "Aktuell installiert - $ak" \
--text "\\n\\n<b>Option:\\n\\nWenn der Kernel gepatcht werden soll muss der Ordner \\n\\n\
$patchdir \\n\\neine *.patch Datei enthalten.\\n\\nMit oder ohne patch weiter?</b>" 2>/dev/null
then
exit 0
fi
if ! patch -p1 < ../kernel_gcc_patch/*.patch
then
echo "Kein *.patch in $patchdir vorhanden, kein Problem, weiter"
else
echo 'Kernel wird gepatcht'
fi
if ! cp /boot/config-"$ak" .config
then
Exit 8 'Fehler beim Erzeugen der .config'
fi
if ! zenity --question \
--width='700' \
--ok-label="Ja" \
--cancel-label="Abbruch" \
--title "Aktuell installiert - $ak" \
--text "\\n\\n<b>Kernel $version bauen?</b>" 2>/dev/null
then
exit 0
fi
if ! sed -i 's/CONFIG_DEBUG_INFO=y/CONFIG_DEBUG_INFO=n/g' .config
then
Exit 9 'Fehler, .config konnte nicht erstellt werden'
fi
if ! yes '' | make oldconfig
then
Exit 10 'Fehler: make oldconfig fehlgeschlagen'
fi
#make menuconfig
d=$(printf %02d ${version//./ })
if ! make clean
then
Exit 11 'Fehler: Konnte nicht durchwischen'
fi
if ! make -j '$(nproc) bindeb-pkg LOCALVERSION='-$d
then
Exit 12 'Kernel backen fehlgeschlagen'
fi
if ! cd '$workdir'
then
Exit 13 'Fehler beim Wechsel in den Arbeitsordner'
fi
if ! zenity --question \
--width='700' \
--timeout='30' \
--ok-label='Ja' \
--cancel-label='Nein' \
--title 'Aktuell installiert - $ak' \
--text '<b>Kernel linux-image-'$version-$d'-1 installieren?</b>' 2>/dev/null
then
exit 0
fi
echo "Stop on line 215, for do not install kernel"
exit 0
if ! gksudo --message 'Für die Installation des Kernel werden Rootrechte benötigt.Passwort eingeben oder [Abbrechen] drücken.' -- tee '${launcher}'
then
exit 0
else
dpkg -i linux-headers-* linux-image-*
fi
You can install it, but probably not worth it as it’s not nearly as streamlined/optimized as the arch kernel provided. If you wanted something more suited to your system you’d probably wanna run make localyesconfig instead of make defconfig. This will only build the modules your system has currently loaded (so you’d wanna attach usb devices and things like that you’d normally use to make sure they’re present in the kernel image before running this) and will be more streamlined. Lastly, to make it easier to replace and update you’d wanna make your own PKGBUILD for it which is easy enough if you take the Arch one as the blueprint for yours. Could at the very least make for a fun project even if you don’t end up keeping it.
As mentioned above, probably modifying the default arch PKGBUILD would be easier if you wanted to go down this route. Could make for a fun learning experience
@alenbasic
I tried this on my Intel but it didn’t give me the times. I got this at the end.
ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text'
ld: warning: creating DT_TEXTREL in a PIE
ZOFFSET arch/x86/boot/zoffset.h
OBJCOPY arch/x86/boot/vmlinux.bin
AS arch/x86/boot/header.o
LD arch/x86/boot/setup.elf
OBJCOPY arch/x86/boot/setup.bin
BUILD arch/x86/boot/bzImage
Setup is 13884 bytes (padded to 14336 bytes).
System is 8831 kB
CRC a0c127cc
Kernel: arch/x86/boot/bzImage is ready (#1)
[ricklinux@eos-xfce linux-5.8.3]$
