linux-kernel - Re: [PATCH 5.13 073/127] pipe: avoid unnecessary EPOLLET wakeups under normal loads

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-=wiQhb689WEk__vLy-ET4rL69cjq39pGTmrKam=c_0LYGg@mail.gmail.com>
Date:   Tue, 24 Aug 2021 10:00:33 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>,
        kernel test robot <oliver.sang@...el.com>,
        Sandeep Patil <sspatil@...roid.com>,
        Mel Gorman <mgorman@...hsingularity.net>
Subject: Re: [PATCH 5.13 073/127] pipe: avoid unnecessary EPOLLET wakeups
 under normal loads

On Tue, Aug 24, 2021 at 9:57 AM Sasha Levin <sashal@...nel.org> wrote:
>
> From: Linus Torvalds <torvalds@...ux-foundation.org>
>
> [ Upstream commit 3b844826b6c6affa80755254da322b017358a2f4 ]

This one has an odd performance regression report associated with it.

Honestly, I don't understand the performance regression, but that's
likely on me, not on the kernel test robot.

So I'd hold off on applying it for now. It *might* be some odd test
robot hiccup, but ..

          Linus