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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 69AB1C433DB for ; Mon, 29 Mar 2021 17:29:39 +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 06B8F61879 for ; Mon, 29 Mar 2021 17:29:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 06B8F61879 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]:37830 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQvhq-0006ql-4o for qemu-devel@archiver.kernel.org; Mon, 29 Mar 2021 13:29:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35842) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQvgn-0005uJ-32 for qemu-devel@nongnu.org; Mon, 29 Mar 2021 13:28:33 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:24115) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQvgl-0004Zq-EY for qemu-devel@nongnu.org; Mon, 29 Mar 2021 13:28:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617038910; 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: in-reply-to:in-reply-to:references:references; bh=m4bGFtr8WYPrTfOlLi/liGnaFv0n73Fh4O/3rhFKwko=; b=GX6mIifZWNOX8RDGpsQz+VoHUXdKOpjDcEHkPSLpuUuc5eF8Zz1yp5+eMp9u9jMgnSjF4A t+E7DFP6MZViCzF/tjdlKkFUOVybiZ8uQ+9w9WQl4+TMxL10gNnux8CNqS4eCVTsWPGYYv yqPiHDHmoSm3Q9pHYFJ/H+dLIby8lTM= 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-504-K6ov8cY7NbWemORlaPvFFw-1; Mon, 29 Mar 2021 13:28:28 -0400 X-MC-Unique: K6ov8cY7NbWemORlaPvFFw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 8996A10C438E; Mon, 29 Mar 2021 17:28:27 +0000 (UTC) Received: from localhost (ovpn-114-227.ams2.redhat.com [10.36.114.227]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1FEAB196E3; Mon, 29 Mar 2021 17:28:22 +0000 (UTC) Date: Mon, 29 Mar 2021 18:28:21 +0100 From: Stefan Hajnoczi To: Greg Kurz Subject: Re: [RFC 8/8] virtio-scsi: Use virtio_bus_set_host_notifiers() Message-ID: References: <20210325150735.1098387-1-groug@kaod.org> <20210325150735.1098387-9-groug@kaod.org> MIME-Version: 1.0 In-Reply-To: <20210325150735.1098387-9-groug@kaod.org> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="azd4k7xOhjJ7tAYf" Content-Disposition: inline Received-SPF: pass client-ip=63.128.21.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: Fam Zheng , Kevin Wolf , qemu-block@nongnu.org, "Michael S. Tsirkin" , qemu-devel@nongnu.org, Max Reitz , Paolo Bonzini , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --azd4k7xOhjJ7tAYf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 25, 2021 at 04:07:35PM +0100, Greg Kurz wrote: > This allows the virtio-scsi-pci device to batch additions and deletions > of host notifiers. This significantly improves boot time of VMs with a > high number of vCPUs, e.g. from 6m13.969s down to 1m4.268s for a pseries > machine with 384 vCPUs. >=20 > Signed-off-by: Greg Kurz > --- > hw/scsi/virtio-scsi-dataplane.c | 28 +++++++++++++--------------- > 1 file changed, 13 insertions(+), 15 deletions(-) Reviewed-by: Stefan Hajnoczi --azd4k7xOhjJ7tAYf Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmBiDjUACgkQnKSrs4Gr c8hj2AgAwMU/ZuJfDL41/A0TVvUCO1QVlHw5PFE82dE1Xka9cEHD9PESPS7FyD3+ UG914GsAFoSQio9CjjcHDp14VU1MkT1e1xo8p3FHh8P4BOUoFsfx7L2oWXPvwyvd 17bTVHJt+A6EOspxQ96Etkb4IeP0M5jIiu5GulfUWJ3xO8SUboPbkh5mYUdJaSQK h6mjU4jLHrrGdaq93pZyVuNZM58IXdD+9696ekfAmP848mBkPGKBbbeSRYn8GzVJ TM6mh5VuHlQYDx6C2xwPBn8ZtsEvv0bUs+CTJaII47XSn0bzYe984SIyQHDPp+N2 b6YWBSxSH4HBmjFfi5Zz2yvVfG1Aww== =OKWG -----END PGP SIGNATURE----- --azd4k7xOhjJ7tAYf--