Re: CONFIG_IRQBALANCE for 64-bit x86 ?

From: Ingo Molnar
Date: Tue Nov 20 2007 - 19:37:10 EST



* H. Peter Anvin <hpa@xxxxxxxxx> wrote:

> Ingo Molnar wrote:
>> * H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>>
>>>>> Nope. It runs inside an initramfs, of course; that initramfs is linked
>>>>> into the kernel binary.
>>>> would be nice to have a single-image variant for all of this. having the
>>>> separate initrd was always trouble - and it's pointless as well. (we
>>>> rarely update the initrd without updating the vmlinuz as well)
>>> We do. Am I missing something?
>>
>> do we have a single-image way of getting both the kernel image and the
>> initram set up at once? What i know of is a two-image approach: vmlinuz
>> and initrd.
>>
>
> Yes, we do. The initramfs can be linked into the kernel image. The
> unified klibc build tree does that by default.

argh. Guess i misread your answer:

>>>>>> nor do i - i was under the impression that klibc was able to work
>>>>>> out of a bzImage too? Am i wrong?
>>>>> Nope. It runs inside an initramfs, of course; that initramfs is linked
>>>>> into the kernel binary.

i took that "Nope" as referring to my impression - but you in fact meant
that i am not wrong? :-) So nothing to see here. single-bzImage initrd
was and is possible, so we could in fact move chunks of system-related
userland (such as irqbalanced) into the kernel proper?

Ingo
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