From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (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 EC5F421314E; Wed, 30 Oct 2024 15:50:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730303459; cv=none; b=GToA271fLr5g8zxY5T3yU5R3QPYTMwjBKeEyQWZSguOttfl0crGnRQRNfsCS7VYiDtjwhPQBq0EY+P/VqPLuGbx6xZPCJdgOUuwL7W+/zXry5P9uMTaaLnpEp52xXztFGpRVAx/R/C08X5ZJnafaxLvRLw4UK2sK4ufDhtWa2zU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730303459; c=relaxed/simple; bh=i/yskWZG3tPBNCcc+unIbOGUox6fgz9VbRLdWCDEIpU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BdinDUa2WFbFp6bbdJAl/p03H0e9sesQuTBPqUMI9+ZWw4PayAhJo141FSm0ZmKw+S4wRt8GoYVhGZVp/UioqH6UyTjLRMUBBqnhg9UkxT5bHAcCaUnuXGP0YtwaQ7GS+Ca95CvPMpvd3FSldTDaYj0tQBOHXwmwdiM3YAdI79I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id B5DD5227A8E; Wed, 30 Oct 2024 16:50:52 +0100 (CET) Date: Wed, 30 Oct 2024 16:50:52 +0100 From: Christoph Hellwig To: Keith Busch Cc: Christoph Hellwig , Keith Busch , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, joshi.k@samsung.com, javier.gonz@samsung.com, bvanassche@acm.org, Hannes Reinecke Subject: Re: [PATCHv10 9/9] scsi: set permanent stream count in block limits Message-ID: <20241030155052.GA4984@lst.de> References: <20241029152654.GC26431@lst.de> <20241029153702.GA27545@lst.de> <20241029155330.GA27856@lst.de> <20241030045526.GA32385@lst.de> <20241030154556.GA4449@lst.de> Precedence: bulk X-Mailing-List: io-uring@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: User-Agent: Mutt/1.5.17 (2007-11-01) On Wed, Oct 30, 2024 at 09:48:39AM -0600, Keith Busch wrote: > What??? You said to map the temperature hints to a write stream. The > driver offers that here. But you specifically don't want that? I'm so > confused. In bdev/fops.c (or file systems if they want to do that) not down in the driver forced down everyones throat. Which was the whole point of the discussion that we're running in circles here. > > with no way to make actually useful use of the stream separation. > > Have you tried it? The people who actually do easily demonstrate it is > in fact very useful. While I've read the claim multiple times, I've not actually seen any numbers.