linux-kernel - Re: [PATCH v3 2/6] futex2: Implement vectorized wait

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Message-ID: <YUMofqnG6zE4BrnR@hirez.programming.kicks-ass.net>
Date:   Thu, 16 Sep 2021 13:20:30 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>
Cc:     André Almeida <andrealmeid@...labora.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Darren Hart <dvhart@...radead.org>,
        linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        kernel@...labora.com, linux-api@...r.kernel.org,
        libc-alpha@...rceware.org, mtk.manpages@...il.com,
        Davidlohr Bueso <dave@...olabs.net>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v3 2/6] futex2: Implement vectorized wait

On Thu, Sep 16, 2021 at 12:10:25AM -0400, Gabriel Krisman Bertazi wrote:

> I find this weird.  I'm not even juts talking about compat, but even on
> native 32-bit. But also, 32 applications on 64, which is a big use
> case for games.

Seriously, people still make 32bit applications today? And for legacy
games, I would think the speed increase of modern CPUs would far offset
this little inefficiency.