On Sat, Feb 15, 2014 at 06:30:59PM -0700, Simon Glass wrote: > Hi Masahiro, > > On 6 February 2014 14:10, Tom Rini <tr...@ti.com> wrote: > > On Mon, Feb 03, 2014 at 12:46:30PM +0900, Masahiro Yamada wrote: > > > >> Hello Simon and Tom, > >> > >> > >> This is my analysis of Kbuild performance. > > [snip] > >> Conclusion: > >> The main reasons of the slow down with Kbuild are "fixdep" and "arg-check". > >> Both of them are really important features for Kbuild and Kconfig. > >> - "fixdep" is mandatory for our better life with Kconfig. > >> - "arg-check" is for perfect dependency tracking. > >> > > Thanks for your detailed analysis of this. The slower build time is > unfortunate but I think it is worth it. The fixdep thing is similar to > the penalty from the autoconf series I did a while ago. Maybe the > scripts can be sped up, I'm not sure. > > >> > >> > >> > > What's your plan about this series? > >> > > Are we ready to switch to Kbuild, or need more review? > >> > > >> > Lets get the performance problem Simon found figured out, but then > >> > otherwise, yes, I think we're about ready to merge. > >> > >> Tom, are you satisfied with my analisys? > > > > I am, yes. I guess if we're unhappy with the times, if we can improve > > them we can push that back to the kernel and that's a good thing. > > Well IMO the sooner this is merged the better so that the Makefiles > become stable again.
Agreed. Weather ate most of last week for me when I had hoped to clear out some things and then grab this series. Back at it all now.. -- Tom
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