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From: Tomas Glozar <tglozar@kernel.org>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	"H . Peter Anvin" <hpa@zytor.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Ingo Molnar <mingo@redhat.com>, Jonathan Corbet <corbet@lwn.net>,
	Thomas Gleixner <tglx@kernel.org>
Subject: Re: [PATCH] x86: Start removing X86_X32_ABI
Date: Thu, 28 May 2026 09:05:48 +0200	[thread overview]
Message-ID: <20260528070548.2967334-1-tglozar@kernel.org> (raw)
In-Reply-To: <20260523093734.A3AR7reJ@linutronix.de>

FWIW, T2 Linux [1] also has an option to build x32, and there have been such
builds last year [2]. Since this year, it switched to building KDE Plasma
desktop ISOs, where x32 makes less sense, though, as modern desktop is rather
RAM-hungry.

[1] https://t2linux.com
[2] https://dl.t2sde.org/binary/2025/t2-25.10-x32-base-wayland-glibc-gcc-nocona.iso

Also at least 6 years ago, x32 was reported there to increase performance by
some 5-8% [3] likely thanks to smaller pointers allowing better cache
utilization. That is not insignificant, and not all tasks require gigabytes of
RAM (e.g. compression and encryption, as shown in the link).

[3] https://www.youtube.com/live/Mw-ravkg67k?si=HS7ZHZyg_FKXPZUz&t=387 (yeah
YouTube video not the best source...)

Tomas

  parent reply	other threads:[~2026-05-28  7:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-23  9:37 [PATCH] x86: Start removing X86_X32_ABI Sebastian Andrzej Siewior
2026-05-23 21:43 ` H. Peter Anvin
2026-05-26 10:40   ` Sebastian Andrzej Siewior
2026-05-26 15:53     ` H. Peter Anvin
2026-05-26 15:54     ` H. Peter Anvin
2026-05-26 20:43       ` Sebastian Andrzej Siewior
2026-05-31 21:46         ` Arnd Bergmann
2026-06-01 21:44           ` Sebastian Andrzej Siewior
2026-06-01 22:45             ` Arnd Bergmann
2026-05-27 12:02       ` David Laight
2026-06-01 21:29         ` H. Peter Anvin
2026-06-04 20:27   ` Thomas Gleixner
2026-05-27 13:10 ` Sam James
2026-05-27 13:41 ` Neal Gompa
2026-05-27 15:57 ` John Paul Adrian Glaubitz
2026-06-01 21:12   ` Sebastian Andrzej Siewior
2026-06-01 21:14     ` H. Peter Anvin
2026-05-28  7:05 ` Tomas Glozar [this message]
2026-06-01 21:26   ` Sebastian Andrzej Siewior
2026-05-31 22:05 ` Arnd Bergmann
2026-06-02 16:02   ` Maciej W. Rozycki
2026-06-02 16:36     ` Arnd Bergmann
2026-06-05  3:35       ` H. Peter Anvin
2026-06-02  9:48 ` Richard Purdie

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