linux-kernel - Re: [RFC][PATCH 00/16] sched: Core scheduling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAHk-=wh32Zgp+bN7G1KH7SuCiY1YSJ41Y-_eWpfWubGjqq2_dw@mail.gmail.com>
Date:   Mon, 18 Feb 2019 09:49:10 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Paul Turner <pjt@...gle.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        subhra.mazumdar@...cle.com,
        Frédéric Weisbecker <fweisbec@...il.com>,
        Kees Cook <keescook@...omium.org>, kerrnel@...gle.com
Subject: Re: [RFC][PATCH 00/16] sched: Core scheduling

On Mon, Feb 18, 2019 at 9:40 AM Peter Zijlstra <peterz@...radead.org> wrote:
>
> However; whichever way around you turn this cookie; it is expensive and nasty.

Do you (or anybody else) have numbers for real loads?

Because performance is all that matters. If performance is bad, then
it's pointless, since just turning off SMT is the answer.

                  Linus