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From: Sedat Dilek <sedat.dilek@gmail.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
	x86@kernel.org, rostedt@goodmis.org, hpa@zytor.com,
	torvalds@linuxfoundation.org, linux-kernel@vger.kernel.org,
	linux-toolchains@vger.kernel.org, jpoimboe@redhat.com,
	alexei.starovoitov@gmail.com, mhiramat@kernel.org
Subject: Re: [PATCH 0/2] x86: Remove ideal_nops[]
Date: Sat, 13 Mar 2021 13:38:22 +0100	[thread overview]
Message-ID: <CA+icZUXrJHHDNOC+DAcr9iw4MXn5cBDj-JrDkxeumk978Gtdcg@mail.gmail.com> (raw)
In-Reply-To: <20210313121541.GC16144@zn.tnic>

On Sat, Mar 13, 2021 at 1:15 PM Borislav Petkov <bp@alien8.de> wrote:
>
> On Sat, Mar 13, 2021 at 01:10:29PM +0100, Sedat Dilek wrote:
> > Here we go:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/patch/?id=864b435514b286c0be2a38a02f487aa28d990ef8
>
> That's why I told earlier you to use tip/master - that patch is already
> in it and all you would've needed to do is to apply the two nop patches.
>

Thanks for all your testings and suggestions.

For me it was easier to apply these 3 patches on top of my custom
patchset to see what impact Peter's patchset.

AFAICS you did a 5 times x86-64 defconfig with dropped pagecache and `make -j9`?
I run my "normal" workflow(s) (and build-script) for easier comparison
on my side.

Big thank-you for testing with LLVM/Clang v11.x - twice as slow as with GCC :-(.
A selfmade ThinLTO+PGO optimized LLVM tooolchain v11.x/v12-rcX/v13-git
is here as fast as Debian's GCC-v10.2.1 to build a Linux-kernel -
approx. 03:30 [hh:mm] - full adapted Debian v5.10.y kernel-config.
Does your distribution offer LLVM/Clang v12.0.0-rc3 (released this
week) binaries?

- Sedat -

  reply	other threads:[~2021-03-13 12:39 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-12 11:32 [PATCH 0/2] x86: Remove ideal_nops[] Peter Zijlstra
2021-03-12 11:32 ` [PATCH 1/2] x86: Remove dynamic NOP selection Peter Zijlstra
2021-03-12 12:09   ` Peter Zijlstra
2021-03-12 20:36     ` Linus Torvalds
2021-03-15 18:00   ` [tip: x86/cpu] " tip-bot2 for Peter Zijlstra
2024-01-20  6:58   ` [PATCH 1/2] " Thorsten Glaser
2024-01-20  8:22     ` H. Peter Anvin
2024-01-20 16:53       ` Thorsten Glaser
2024-01-21 23:21         ` H. Peter Anvin
2024-01-21 23:58           ` Thorsten Glaser
2024-01-22  0:15             ` H. Peter Anvin
2024-01-22  0:56               ` Steven Rostedt
2024-01-22  1:17                 ` Thorsten Glaser
2024-01-22  2:04                   ` H. Peter Anvin
2024-01-22  2:15                 ` H. Peter Anvin
2024-01-22  2:22                   ` Steven Rostedt
2024-01-22  2:31                     ` H. Peter Anvin
2024-01-20 17:00       ` Linus Torvalds
2024-01-20 17:19         ` Thorsten Glaser
2024-01-20 18:21           ` disassemblers (was Re: [PATCH 1/2] x86: Remove dynamic NOP selection) Thorsten Glaser
2024-01-21 22:36         ` [PATCH 1/2] x86: Remove dynamic NOP selection David Laight
2024-01-21 23:10           ` H. Peter Anvin
2021-03-12 11:32 ` [PATCH 2/2] objtool,x86: Use asm/nops.h Peter Zijlstra
2021-03-15 18:00   ` [tip: x86/cpu] objtool/x86: " tip-bot2 for Peter Zijlstra
2021-03-12 14:29 ` [PATCH 0/2] x86: Remove ideal_nops[] Sedat Dilek
2021-03-12 14:47   ` Borislav Petkov
2021-03-12 17:26     ` Steven Rostedt
2021-03-12 17:35       ` Sedat Dilek
2021-03-12 17:46         ` Borislav Petkov
2021-03-12 17:47         ` Steven Rostedt
2021-03-12 18:13           ` Sedat Dilek
2021-03-12 19:03             ` Sedat Dilek
2021-03-12 20:59 ` Borislav Petkov
2021-03-13  5:26   ` Sedat Dilek
2021-03-13  8:49     ` Borislav Petkov
2021-03-13 11:23       ` Borislav Petkov
2021-03-13 12:10       ` Sedat Dilek
2021-03-13 12:15         ` Borislav Petkov
2021-03-13 12:38           ` Sedat Dilek [this message]
2021-03-13 12:49             ` Borislav Petkov
2021-03-13 12:58               ` Sedat Dilek
2021-03-13 13:29                 ` Borislav Petkov
2021-03-13 13:47                   ` Sedat Dilek
2021-03-15 17:04                     ` Sedat Dilek
2021-03-15 17:15                       ` Borislav Petkov
2021-03-15 17:19                         ` Sedat Dilek
2021-03-15 17:23                           ` Borislav Petkov
2021-03-15 18:10                       ` Peter Zijlstra
2021-03-15 18:23                         ` Sedat Dilek
2021-03-15 22:14                           ` Peter Zijlstra
2021-03-16  5:56                             ` Sedat Dilek
2021-03-27 12:08                               ` Sedat Dilek
2021-03-27 20:02                                 ` Linus Torvalds
2021-03-30 12:31                                   ` Sedat Dilek

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