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Re: Reducing kernel compilation time



On 2011-09-24 16:22 +0200, Camaleón wrote:

> I had to compile the latest upstream kernel sources to make some 
> debugging with my wifi drivers (from staging) and discovered that 
> compilation took ~5 hours.
>
> That's much for testing purposes.
>
> Compilation takes place in a netbook governed by Intel's Atom N455 with 2 
> GiB of RAM and I would like to reduce the compilation time.
>
> I'm using the same ".config" file I have for the current Debian stock 
> kernel (to avoid missing some modules I may need) and just added 
> "CONFIG_MATOM=y" but it takes almost the same time.
>
> I don't need nothing special, just to be able to boot the system, test 
> the staging drivers and then remove/compile a new kernel again so wasting 
> the less time in the process would be great :-)
>
> Any trick?

Plug in any hardware that you intend to use with your netbook and then
run "make localmodconfig".  This works from Linux 2.6.32 onwards¹.

Sven


¹ http://kernelnewbies.org/Linux_2_6_32#head-11f54cdac41ad6150ef817fd68597554d9d05a5f


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