From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84D6E329C71; Wed, 25 Mar 2026 05:54:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774418072; cv=none; b=CokhLMhBPOZGmyIO0B/sHgbTWM9gGmndbI3RooHjVaF4XoFuMX29Q1aK7M2RSlJ1t8RBzDZ0Ym22IcDI8OprfZvf0IBLhf30M0pudjyTZPpmJLObtHfqQdTGXj5XpDRFeyVDRU6wya6SPbojTPdq2jpCI2g5D4UyY/YfM+IVowY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774418072; c=relaxed/simple; bh=eg1aGWqznCDcl/SwwojZGZH/o3LM4FnouO6efuz+I30=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WCDty9oqfPcwls+OgkODoV4zXERcz7sNJRZ3s4eLFYtnreSbBopsemPPXeYMB4EjcMBholEP5xafcfZ70YTymmSxDzV7O23r6Uoh+QA9MBjgwgPnyuhFVRU1RMSMFwtD3+jIKj9oJ6GN40qCFv7tpmDzEuAmd/gXprzbZgE3RAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=FP93aw7V; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="FP93aw7V" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Transfer-Encoding :Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description; bh=x0lrVEhkGcLtFsYbh35KA1us2x2NzhsZU+tLm4ISVPM=; b=FP93aw7VvhZ5gilShYJUfTl8pa CZc0F0EdzQCloh64KrbaQ9AXgeAZLADmYi8E9vj1ZW/etMasOL8R6vvxKawnXGqjaKacTgnTXg5Kb xXNIlSrOmKBX9r0OEdO2+7ujlrhcSA7cKfPWZS5k6CsHrOTtVp7ZdI+J+J3N/jUzQ0LF6fRlbsWEs jeBdBG1Ti23XDyOo0YpJO6M2JJvc63YEoPyeOss2zSIZHrD1Nb87ZUy8wCs3ZNrVH1ZVVr7fu2tvw OgrWXKerSRXrqwuv9PKVvgPzre9Fkai7+fRa4PJBNhiaWnYoA9Ufyvg1yEolP/ep5nf8ox11eOLLR N9TW6dnA==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1w5HCD-00000002krt-3DBv; Wed, 25 Mar 2026 05:54:25 +0000 Date: Tue, 24 Mar 2026 22:54:25 -0700 From: Christoph Hellwig To: sunliming@linux.dev Cc: Christoph Hellwig , song@kernel.org, yukuai@fnnas.com, akpm@linux-foundation.org, linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, sunliming Subject: Re: [PATCH RESEND v3 2/3] lib/raid6: Optimizing the raid6_select_algo time through asynchronous processing Message-ID: References: <20260320060750.31334-1-sunliming@linux.dev> <20260320060750.31334-3-sunliming@linux.dev> <51f57b049c46e9d22d69d2cb1589526814b9bf65@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <51f57b049c46e9d22d69d2cb1589526814b9bf65@linux.dev> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Mar 25, 2026 at 02:25:16AM +0000, sunliming@linux.dev wrote: > > which could affect different test algorithms differently, so this is not > > a good idea. > > > Yes，but this code can be compiled as a module，Could the same problem exist when loading the module? It could. But at least it is under user control, while offloading during normal boot almost guarantees a spiky load because that is how the boot process works.