Page 1 of 1

where are PAE kernels

PostPosted: Jun 3rd, '11, 12:18
by almusalimalmusalimah
hello

i am curious about those kernels

you know why i asking about them

its because it can help the people who use x32 arch to break the limits of RAM usage

and let them use more than limit if they have more than 4GiB RAM (( if i'm not wrong ))

so can any one tell us about why those kernels aren't at repos

best wishes to all of you

Re: where are PAE kernels

PostPosted: Jun 3rd, '11, 14:18
by jkerr82508
kernel-server is PAE enabled and is available in the core repo. Mageia 1 is following the Mandriva approach to kernel version naming, described here:

http://wiki.mandriva.com/en/Docs/Howto/Mandriva_Kernels

Jim

Re: where are PAE kernels

PostPosted: Jun 3rd, '11, 15:42
by almusalimalmusalimah
i read in that site this sentences

"Please note!
Starting with Mandriva 2009.0, kernel-laptop packages don't exist anymore, the measured benefits/differences for maintaining it were not worth, it is advised that people using kernel-laptop in previous releases change to kernel-desktop.

This kernel is compiled for laptop use, targeting users that wants prolonged battery life. If you want to sacrifice battery life for performance / responsiveness, you better use the kernel-desktop. "

the big Q here is

Can kernel-netbook do "kernel-laptop" job's

and if it is true is there a PAE version from it ????!!!!

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 00:12
by dubigrasu
Resurrecting this old topic....
Are there any plans to provide a PAE kernel for use with 32bit? (Apart from the xen/server ones)

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 15:56
by doktor5000
dubigrasu wrote:Resurrecting this old topic....
Are there any plans to provide a PAE kernel for use with 32bit? (Apart from the xen/server ones)


Huh? An additional kernel which duplicates existing functionality, for what, please?
Why not kernel-server?

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 16:42
by dubigrasu
Huh? An additional kernel which duplicates existing functionality, for what, please?

For using all the RAM available on a 32 bit machine?
It is slightly annoying to know that I have 8 GB RAM and I can use only 3.2 GB
Why not kernel-server?

Because is made for server use and I have a desktop?

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 17:16
by winstonteacox
I have used desktop kernels and mib-pae-kernels with mandriva.
I use server-kernels with mageia.

There is not the slighest difference regarding speed and behavoiur between them (except memory usage, of course ...).

You can use the server-kernel on a desktop without any problem and without any loss of performance.
As the doktor already told, there's no need for an additional pae-kernel.

cheers,
Bernd

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 17:25
by doktor5000
Actually with a good portion of common sense and using the second post in this thread this should not really be necessary, IMHO.

Re: where are PAE kernels

PostPosted: Oct 9th, '11, 17:52
by dubigrasu
Thank you Winston.
Kernel server is out of the question. It may feel the same but is not.
I used side by side for about two months three Mandriva kernels (32 bit, 64bit and 32bit server) and also used Phoronix suite to get a fair comparison between them.
The 64 one overall was slightly better than the rest while the server one was the weakest.
Still, I'm not 64 bit fan, so I was hoping for something like a 32 bits TMB desktop kernel (BFS scheduler and all) with PAE enabled.

Now, if we can stop the dance around the question it would be wonderful if someone can skip the gratuitous moral lessons and actually provide an answer to it:
Are there any plans to provide a PAE kernel for use with 32bit?
Even yes or no will suffice.

Thank you in advance.

Re: where are PAE kernels

PostPosted: Oct 26th, '11, 21:38
by dubigrasu
OK then, suppose I'm trying to build my own PAE enabled kernel from a SRPMS.
Can anyone tell me what I need to add/modify in the spec file?

Re: where are PAE kernels

PostPosted: Oct 26th, '11, 22:20
by doktor5000
Nothing, you'd only need to adapt the default config or the config for the kernel which you want to change.

This is the option you need for PAE:
Code: Select all
CONFIG_X86_PAE
and needs to be set to "y".