Re: [GIT] kbuild/lto changes for 3.15-rc1

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Apr 8, 2014 at 1:49 PM,  <josh@xxxxxxxxxxxxxxxx> wrote:
>
> In addition to making the kernel smaller and such (I'll leave the
> specific stats there to Andi), here's the key awesomeness of LTO that
> you, personally, should find useful and compelling: LTO will eliminate
> the need to add many lower-level Kconfig symbols to compile out bits of
> the kernel.

Actually that, to me, is a negative right now.

Since there's no way we'll make LTO the default in the foreseeable
future, people starting to use it like that is just a bad bad thing.

So really, the main advantage of LTO would be any actual optimizations
it can do. And call me anal, but I want *numbers* for that before I
merge it. Not handwaving. I'm not actually aware of how well - if at
all - code generation actually improves.

                Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux&nblp;USB Development]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite Secrets]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux