From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6BCAC4332D for ; Mon, 8 Feb 2021 15:05:20 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7BE0C64EE4 for ; Mon, 8 Feb 2021 15:05:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7BE0C64EE4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6/YICviPkXtketZLTX2xiaXxMYIKZDf2lYQEPKi8D8k=; b=rvdyLfAZ0HnrZ2hPpt1M/Fyza najOicBc/VOxb6uY7driLAtd3AbeZoMcDmgITrn9wUHe8PPSgUbnqY3pWRCiORnD56+IslMI25Q+5 +4SfRuQo1BMNSiu6+/Lmg9oRmzL8c7DWrM0L/yVenOVEUlzRwftq8WO+vCyRaEx10H+Y8KvAw684r VFJgAQyTRAaXaxzrfRfoV2M/fJh5rY5E/oci4u4spNRIbcamSF1KmTds1/EKU8WhE2cilTNTb+9fp LeYJH0XP5Rh1FRSYo+EyS5LOhqgs4yP8l1mD/uWSQgYJHd+21ypnKJDKOksq62bA8mafRQNcsX2RB LKVlcG3Gw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l986G-0003Zl-TC; Mon, 08 Feb 2021 15:05:16 +0000 Received: from verein.lst.de ([213.95.11.211]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l986E-0003Z6-Cf for linux-nvme@lists.infradead.org; Mon, 08 Feb 2021 15:05:15 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 362A768AFE; Mon, 8 Feb 2021 16:05:09 +0100 (CET) Date: Mon, 8 Feb 2021 16:05:09 +0100 From: "hch@lst.de" To: Minwoo Im Subject: Re: [PATCH] nvme-multipath: set nr_zones for zoned namespaces Message-ID: <20210208150509.GA12734@lst.de> References: <20210205195002.2657209-1-kbusch@kernel.org> <20210208032851.GA14062@redsun51.ssa.fujisawa.hgst.com> <20210208145747.GA8941@localhost.localdomain> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210208145747.GA8941@localhost.localdomain> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210208_100514_554707_645B91BC X-CRM114-Status: UNSURE ( 8.01 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Keith Busch , Damien Le Moal , "sagi@grimberg.me" , "linux-nvme@lists.infradead.org" , "hch@lst.de" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Mon, Feb 08, 2021 at 11:57:47PM +0900, Minwoo Im wrote: > But, there are also little more differences between the path namespace > and head namespace: > > cat /sys/block/nvme0n1/queue/nr_requests: 128 > cat /sys/block/nvme0c0n1/queue/nr_requests: 1023 nr_request is a noop for bio-based drivers. > cat /sys/block/nvme0n1/queue/iostats: 0 > cat /sys/block/nvme0c0n1/queue/iostats: 1 iostats for bio based drivers require extra code, and we don't really need those. > cat /sys/block/nvme0n1/queue/rq_affinity: 0 > cat /sys/block/nvme0c0n1/queue/rq_affinity: 1 rq_affinity is a noop for bio based drivers. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme