Re: Power usage Q and parallel make question (separate issues)

Keith Owens (kaos@melbourne.sgi.com)
Thu, 01 Feb 2001 19:24:32 +1100


On Thu, 01 Feb 2001 00:13:17 -0800,
LA Walsh <law@sgi.com> wrote:
>Keith Owens wrote:
>> It works, until somebody does this
>>
>> make -j 4 modules modules_install
>---
> But that doesn't work now.

Agreed, but letting modules_install parallel run increases the risk of
somebody doing that. Most users will think that they can combine two
parallel runs into a single command, but if they are forced to single
thread modules_install it reduces the risk of user error.

> A bit of documentation at the beginning of the Makefile would do wonders
>for kernel-developer (not end user, please!) clarity. I've oft'asked the question
>as to what really is supported. I've tried things like make dep bzImage modules --
>I noticed it didn't work fairly quickly. Same with modules/modules_install --
>people would probably figure that one out, but just a bit of documentation would
>help even that.

The 2.5 kbuild system will be fully documented, all the way from
reasons for doing things down to how they are down. Trust me on this!
I have had too many problems with undocumented changes in kbuild.

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