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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 38BC7C3524D for ; Mon, 3 Feb 2020 08:36:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0268420658 for ; Mon, 3 Feb 2020 08:36:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="b5WCKpMM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727588AbgBCIga (ORCPT ); Mon, 3 Feb 2020 03:36:30 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:48846 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726244AbgBCIga (ORCPT ); Mon, 3 Feb 2020 03:36:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=G2pDsW29Nx79ibmycfMTPTv+ChirvYgSU5iRViYofm4=; b=b5WCKpMM24O6CPxEP7SZ4ApZP aABNRwlt6K/4mqfZC/oLtj1KXFt8hGQnWg2mPkwBzppibtbBCTzdW4B1PdcTlb/Ek9hhwyVtdNK3L c4j+39Y25HCxGZez10pwRkIPh7UBB6Dwa7m9M4dCeY+0Wyey1mh5MNzplw86pSAB/3s9eD/pK+H3d eEVcUtKdDV2UTQonY9Qt8C62PfVs/01GuZR8jIQ+5U+sOZuOY/8/jhpazhoLOp798XpP8d7gsKfw2 8Cp9OVc76gZK/7oTpkb6PL5e/qVIDDHMvijRNupyBam94Ac7/reMDR1iDqJEW/DsD7pIO+YJEt0sq E0DrxmmmQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1iyXDS-0003Ni-O0; Mon, 03 Feb 2020 08:36:22 +0000 Date: Mon, 3 Feb 2020 00:36:22 -0800 From: Christoph Hellwig To: Hannes Reinecke Cc: Ilya Dryomov , Sage Weil , Daniel Disseldorp , Jens Axboe , ceph-devel@vger.kernel.org, linux-block@vger.kernel.org Subject: Re: [PATCH 15/15] rbd: switch to blk-mq Message-ID: <20200203083622.GA5005@infradead.org> References: <20200131103739.136098-1-hare@suse.de> <20200131103739.136098-16-hare@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200131103739.136098-16-hare@suse.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Fri, Jan 31, 2020 at 11:37:39AM +0100, Hannes Reinecke wrote: > Allocate one queue per CPU and get a performance boost from > higher parallelism. Well, the driver already is using blk-mq so your subject is incorrect. I think you want to say something like "rbd: support multiple queues"