Why cooperative multitasking?

Roberth · 2007-10-24 15:58:36

Why is archs kernel compiled with cooperative multitasking and not preemptive multitasking? Cooperative multitasking is an extremly old way to do multitasking which you need to go back to windows 95 and Mac OS 9 to find other operating system which uses the same technic?

foxbunny · 2007-10-24 16:08:05

I don't know why (I'm guessing it's the default setting in the config). If you don't like that, you can recompile the kernel using ABS.

http://wiki.archlinux.org/index.php/ABS
http://wiki.archlinux.org/index.php/Ker … n_with_ABS

btartsa · 2007-10-24 16:33:30

can you specify which config options you are referring too?

Ramses de Norre · 2007-10-24 16:44:32

$ uname -a
Linux ###### 2.6.23-ARCH #1 SMP PREEMPT Mon Oct 22 10:58:45 UTC 2007 i686 AMD Athlon(tm) 64 Processor 3700+ AuthenticAMD GNU/Linux

Doesn't the bold snippet tell that my kernel uses preemptive multitasking? This is on the stock 32bit Arch kernel.

Last edited by Ramses de Norre (2007-10-24 16:44:55)

funkyou · 2007-10-24 19:45:39

Afaik the linux kernel never had cooperative multitasking. Its only used by this uncooperative OS still installed on most desktops out there...

Roberth · 2007-10-24 20:42:53

Hmmm, a friend of my tried arch, and he was very annoyed over this, maybe he was looking wrong at the default kernels config file? I don't know.

thorstenhirsch · 2007-10-24 21:46:48

Of course Linux doesn't use cooperative multitasking. Even Windows doesn't use it nowadays. I think you have to go back to the days when Windows was not an OS on its own to find cooperative multitasking.

Last edited by thorstenhirsch (2007-10-24 21:47:16)

phrakture · 2007-10-25 00:24:43

Roberth wrote:

Hmmm, a friend of my tried arch, and he was very annoyed over this, maybe he was looking wrong at the default kernels config file? I don't know.

My guess is he was making things up. I mean, if something was acting weird, or slow, I would never say "man, this kernel config option is annoying". I'd say it was slow, or weird, or whatever it were actually doing.

cactus · 2007-10-25 00:27:58

Oh man, arch uses glockenshelaley IO primates in the bus factory interface?
*oop ack*

Arch Linux

#1 2007-10-24 15:58:36

Why cooperative multitasking?

#2 2007-10-24 16:08:05

Re: Why cooperative multitasking?

#3 2007-10-24 16:33:30

Re: Why cooperative multitasking?

#4 2007-10-24 16:44:32

Re: Why cooperative multitasking?

#5 2007-10-24 19:45:39

Re: Why cooperative multitasking?

#6 2007-10-24 20:42:53

Re: Why cooperative multitasking?

#7 2007-10-24 21:46:48

Re: Why cooperative multitasking?

#8 2007-10-25 00:24:43

Re: Why cooperative multitasking?

#9 2007-10-25 00:27:58

Re: Why cooperative multitasking?

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