From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>, X86 ML <x86@kernel.org>,
Michal Marek <michal.lkml@markovi.net>
Subject: Re: [PATCH] kbuild: Disable extra debugging info in .s output
Date: Fri, 1 Feb 2019 19:51:07 +0900 [thread overview]
Message-ID: <CAK7LNATW11-DBFZtF0j8S9KsCa1gOGcfAbfNeWm2epkb=1RnGg@mail.gmail.com> (raw)
In-Reply-To: <20190201103038.GE31854@zn.tnic>
On Fri, Feb 1, 2019 at 7:32 PM Borislav Petkov <bp@alien8.de> 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
prev parent reply other threads:[~2019-02-01 10:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-21 9:53 [PATCH] kbuild: Disable extra debugging info in .s output Borislav Petkov
2019-01-31 11:58 ` Borislav Petkov
2019-02-01 3:06 ` Masahiro Yamada
2019-02-01 9:42 ` Borislav Petkov
2019-02-01 10:09 ` Masahiro Yamada
2019-02-01 10:23 ` Borislav Petkov
2019-02-01 11:03 ` Masahiro Yamada
2019-02-01 10:30 ` Borislav Petkov
2019-02-01 10:36 ` Borislav Petkov
2019-02-01 11:58 ` Masahiro Yamada
2019-02-01 15:11 ` Borislav Petkov
2019-02-02 13:48 ` Masahiro Yamada
2019-02-02 14:42 ` Borislav Petkov
2019-02-06 10:47 ` Borislav Petkov
2019-02-10 6:51 ` Masahiro Yamada
2019-02-10 12:39 ` Borislav Petkov
2019-02-18 8:30 ` Borislav Petkov
2019-02-18 9:10 ` Masahiro Yamada
2019-02-18 14:31 ` Borislav Petkov
2019-02-19 23:55 ` Masahiro Yamada
2019-02-01 10:51 ` Masahiro Yamada [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAK7LNATW11-DBFZtF0j8S9KsCa1gOGcfAbfNeWm2epkb=1RnGg@mail.gmail.com' \
--to=yamada.masahiro@socionext.com \
--cc=bp@alien8.de \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=michal.lkml@markovi.net \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).