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=-3.6 required=3.0 tests=BAYES_00,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 6DAFCC2BB9A for ; Tue, 15 Dec 2020 17:29:01 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 C4F5B207B3 for ; Tue, 15 Dec 2020 17:29:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C4F5B207B3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57806 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kpE8B-0000pY-Lj for qemu-devel@archiver.kernel.org; Tue, 15 Dec 2020 12:28:59 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:55686) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kpE75-000897-TV for qemu-devel@nongnu.org; Tue, 15 Dec 2020 12:27:53 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:57794) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kpE73-0005rX-9M for qemu-devel@nongnu.org; Tue, 15 Dec 2020 12:27:50 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608053268; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pF7l43fIb8DRyrxQUrh82mGHDHq233zmwheERQRsWK8=; b=EDo8YFauqCSICPqbxWAxuCzEV40/Xm1k5uB+kdMegpw9ZexwKySsmiOgLRPdlipAXovgW7 32OQ0aIxCL8dsEQ+Srp7S+H7BUUS6/KXSLK0ifaqbPu7Bwwr6XiezLf4O9JcIIkjMTawRp Ve37ZFuFJ0jqYTDJWfp8wyqxOxWdj5U= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-506-hA76IMW_NOuliiqH_BfENQ-1; Tue, 15 Dec 2020 12:27:44 -0500 X-MC-Unique: hA76IMW_NOuliiqH_BfENQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C5A901034B0D; Tue, 15 Dec 2020 17:27:29 +0000 (UTC) Received: from gondolin (ovpn-114-220.ams2.redhat.com [10.36.114.220]) by smtp.corp.redhat.com (Postfix) with ESMTP id 17BEE60C0F; Tue, 15 Dec 2020 17:27:27 +0000 (UTC) Date: Tue, 15 Dec 2020 18:27:25 +0100 From: Cornelia Huck To: Halil Pasic Subject: Re: [PATCH 1/1] virtio-blk-ccw: tweak the default for num_queues Message-ID: <20201215182725.54c475d9.cohuck@redhat.com> In-Reply-To: <20201215123334.3778358e.pasic@linux.ibm.com> References: <20201109154831.20779-1-pasic@linux.ibm.com> <20201109170616.6875f610.cohuck@redhat.com> <20201109195303.459f6fba.pasic@linux.ibm.com> <0a6d17ce-ed7f-98e8-2937-f266bb4f0f5a@de.ibm.com> <20201110114015.1ba4cdac.pasic@linux.ibm.com> <20201215092656.1b95e030.cohuck@redhat.com> <20201215123334.3778358e.pasic@linux.ibm.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , "Michael S. Tsirkin" , David Hildenbrand , qemu-devel@nongnu.org, Christian Borntraeger , qemu-s390x@nongnu.org, Michael Mueller Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, 15 Dec 2020 12:33:34 +0100 Halil Pasic wrote: > On Tue, 15 Dec 2020 09:26:56 +0100 > Cornelia Huck wrote: > > Do we have a better idea now about which values would make sense here? > > > > Hi Conny! > > I have nothing new since then. Capping at 4 queues still looks like a > reasonable compromise to me. @Mimu: anything new since then? > > If you like I can spin a new version (we need compat handling now). > > Halil > If your tests show that 4 queues are a reasonable value, this is fine by me (with an explanatory comment in the code.) Feel free to respin.