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I'm using a Core i5-2500 and need to run virtualbox all the time; the problem is that it feels slow. I'm considering switching to BFS and use the virtualbox-ck. Can someone with experience tell me how much I might be able to get for the fspeed gain?
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The BFS in -ck packages will give you superior interactivity and potentially minor improvements in some tasks which depend heavily on queuing. The short answer is, yes.
Suggesting reading:
http://ck.kolivas.org/patches/bfs/bfs-faq.txt
http://repo-ck.com/bench/cpu_schedulers_compared.pdf
Last edited by graysky (2013-04-27 15:54:22)
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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10% guaranteed!
Honestly, this question is very hard to answer. What about just trying it out? You can use precompiled packages from
[repo-ck]
Server = http://repo-ck.com/$arch
(you should use linux-ck-sandybridge)
and try it out!
Btw, there's no virtualbox-ck, just install
pacman -S virtualbox-ck-host-modules-sandybridge --asdeps
and then install virtualbox from the repos.
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Thanks for your answer. I've actually seen your report on BFS and that was one of the reasons that made curious. I think I'll just try it out myself and see the difference.
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10% guaranteed!
<snip>
Oh, come one Army! You know it is more like a 11.12942% gaurantee. Stop being so pessimistic.
@OP, before I realized the awesomeness of systemd --user, I was using graysky's linux-ck-ivybridge kernel as my daily driver. In my totally non-scientific testing/usage I felt as though it did bring improvments in responsiveness to my system. Unfortunately the BFS option conflicts with the necessary cgroup settings to make systemd user sessions work. But I still keep the CK kernel on my machine as a backup, and then if I boot that kernel, I have it set up so that it goes to a custom made graphical-ck.target rather than the normal graphical.target.
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@WonderWoofy What do you mean by 'the awesomeness of systemd --user'? Haven't known about that
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@Army I installed the packages but it seems that bfs is not running.. Do I still need to build BFS from AUR aside from the linux-ck-XXX packages?
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@yulan - If you're booted into the linux-ck kernel, BFS is running. Try:
% dmesg | grep Kolivas
[ 0.504605] BFS CPU scheduler v0.428 by Con Kolivas.
Last edited by graysky (2013-04-27 16:35:10)
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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@graysky I tried that but it wasn't l listed. What's the right way to boot into linux-ck by the way?
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Have you adjusted your bootloader to boot the new kernel?
"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" - Richard Stallman
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@graysky I tried that but it wasn't l listed. What's the right way to boot into linux-ck by the way?
https://wiki.archlinux.org/index.php/Li … on_Options
Note: As with *any* additional kernel, users will need to manually edit their boot loader's config file to make it aware of the new kernel images. For example, users of GRUB should execute "grub-mkconfig -o /boot/grub/grub.cfg". Syslinux, GRUB-legacy, etc. will need to be modified as well.
CPU-optimized Linux-ck packages @ Repo-ck • AUR packages • Zsh and other configs
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No, I'm really new to kernel stuff to be honest... Am going to google for some wiki or maybe someone can point me a quick way
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@graysky Thanks a lot for your quick reply. Am running it right now and hope it speeds my system
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