Re: [PATCH v2 1/2] kbuild: Add a cache for generated variables

2017-10-11 Thread Doug Anderson
Hi, On Tue, Oct 10, 2017 at 8:59 PM, Masahiro Yamada wrote: > Hi Douglas, > > > 2017-10-05 7:37 GMT+09:00 Douglas Anderson : >> While timing a "no-op" build of the kernel (incrementally building the >> kernel even though nothing changed) in the Chrome OS build system I >> found that it was much s

Re: [PATCH v2 1/2] kbuild: Add a cache for generated variables

2017-10-10 Thread Masahiro Yamada
Hi Douglas, 2017-10-05 7:37 GMT+09:00 Douglas Anderson : > While timing a "no-op" build of the kernel (incrementally building the > kernel even though nothing changed) in the Chrome OS build system I > found that it was much slower than I expected. > > Digging into things a bit, I found that quit

[PATCH v2 1/2] kbuild: Add a cache for generated variables

2017-10-04 Thread Douglas Anderson
While timing a "no-op" build of the kernel (incrementally building the kernel even though nothing changed) in the Chrome OS build system I found that it was much slower than I expected. Digging into things a bit, I found that quite a bit of the time was spent invoking the C compiler even though we