On Fri, Feb 1, 2019 at 7:32 PM Borislav Petkov <bp@xxxxxxxxx> wrote: > > On Fri, Feb 01, 2019 at 07:09:36PM +0900, Masahiro Yamada wrote: > > I provide the result of "perf stat" of the incremental build for you. > > One more question: what exactly is that "incremental build" you're > measuring with? I meant "make" after you the full build > Exact command line please. $ make defconfig $ make -j8 [Wait until the full build finished] $ perf stat --repeat 20 --null make -j8 [Wait until the perf result is displayed] > > Without your patch: > > > > > > Performance counter stats for 'make -j8' (20 runs): > > > > 2.721312445 seconds time elapsed > > ( +- 1.02% ) > > > > > > > > With you patch: > > > > > > Performance counter stats for 'make -j8' (20 runs): > > > > 5.038521415 seconds time elapsed > > ( +- 0.56% ) > > This can't be a full kernel build. > > Thx. > > -- > Regards/Gruss, > Boris. > > Good mailing practices for 400: avoid top-posting and trim the reply. -- Best Regards Masahiro Yamada