From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 43AD828DC4 for ; Fri, 12 Sep 2025 18:20:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=63.228.1.57 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757701211; cv=none; b=IJZZrwCtmH6VfD2XB88anSXl4sA0Kqhc4fJGUqUSLKYJM97e2uC1Utvgc7zZT7xE8LKDOukD2ssV7UBCHdS2OGxsRcsM3MG+R5xImtm4fJENPMAqWNj6z2RsOn11jDv1LhuuSKyLPFAVz6mMIYk4WCbhAqX8TOtXMWkU1FWuhvA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757701211; c=relaxed/simple; bh=NjdvVlepwSc40o6xoeUcd14/beHzG4Op0djrmis/EAg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=UqRkCEJ1aWGrwzTZMiqPV+66/dH9qLGVRBwQV6oO68KOZiGyVW7+842eIxvaHshQ024/uyeJ/RWJAj+bBgFB1zmw/t5vCjQtBHatoVNB7IMAcPyaVvE01BkrvtjBA3G0kGimDE01RS8KgnG5edlFi2WgZ8ZzVQRPWMhiE82klbo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org; spf=pass smtp.mailfrom=kernel.crashing.org; arc=none smtp.client-ip=63.228.1.57 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.crashing.org Received: from gate.crashing.org (localhost [127.0.0.1]) by gate.crashing.org (8.18.1/8.18.1/Debian-2) with ESMTP id 58CIJjlO062195; Fri, 12 Sep 2025 13:19:45 -0500 Received: (from segher@localhost) by gate.crashing.org (8.18.1/8.18.1/Submit) id 58CIJiNH062194; Fri, 12 Sep 2025 13:19:44 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Fri, 12 Sep 2025 13:19:44 -0500 From: Segher Boessenkool To: Indu Bhagat Cc: Jens Remus , Sterling Augustine , Pavel Labath , Andrii Nakryiko , Josh Poimboeuf , Steven Rostedt , Serhei Makarov , Binutils , "linux-toolchains@vger.kernel.org" Subject: Re: Unaligned access trade-offs for SFrame FRE layout Message-ID: References: Precedence: bulk X-Mailing-List: linux-toolchains@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Fri, Sep 12, 2025 at 10:34:42AM -0700, Indu Bhagat wrote: Why on earth would you ever care about an "unaligned" access? The ABI requires you to support sny of it. You might want it to be faster, but that is very very marginal no matter what. Segher