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 CF588C433ED for ; Wed, 14 Apr 2021 09:47:01 +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 39BF76024A for ; Wed, 14 Apr 2021 09:47:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 39BF76024A 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]:60216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lWc6u-00024e-8l for qemu-devel@archiver.kernel.org; Wed, 14 Apr 2021 05:47:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44840) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lWc5W-0001I1-1T for qemu-devel@nongnu.org; Wed, 14 Apr 2021 05:45:35 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:26104) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lWc5S-0004Oi-BD for qemu-devel@nongnu.org; Wed, 14 Apr 2021 05:45:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618393527; 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=3UG1rqIsXMKmeAz/MNqfWNq6iSitU8OvytV5dMtVHC8=; b=egeDm0sQsRhvR+OUJQ17HEA0iPAAPLmOQKPU9nqDOfmKIoxQvCH3zlJLNQb9nYYymMt8j1 ZlEjgcNTaNyWxVQ0006KSWPyh0kSaXrjI/SCH80R9t7nLmXMBd4iPwROzglP2lAkDkaAAL AHSOBvg1QwdaOIYYM8ldUAt6QOCNHBY= 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-571-s2teuGkSMFud7Whxxm1K_w-1; Wed, 14 Apr 2021 05:45:23 -0400 X-MC-Unique: s2teuGkSMFud7Whxxm1K_w-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6669B8189C8; Wed, 14 Apr 2021 09:45:22 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-114-165.ams2.redhat.com [10.36.114.165]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 50DAC6F99E; Wed, 14 Apr 2021 09:45:04 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 615B81800936; Wed, 14 Apr 2021 11:45:02 +0200 (CEST) Date: Wed, 14 Apr 2021 11:45:02 +0200 From: Gerd Hoffmann To: "Kasireddy, Vivek" Subject: Re: [PATCH 00/11] Add support for Blob resources feature Message-ID: <20210414094502.krykle6fcv2ehkvg@sirius.home.kraxel.org> References: <20210331031001.1564125-1-vivek.kasireddy@intel.com> <58a1404f12d9434bae1d336f6553279e@intel.com> MIME-Version: 1.0 In-Reply-To: <58a1404f12d9434bae1d336f6553279e@intel.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@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: =?utf-8?Q?Marc-Andr=C3=A9?= Lureau , "Zhang, Tina" , "qemu-devel@nongnu.org" , "Kim, Dongwon" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi, > Any other ideas as to how to eliminate that Blit cleanly? Well, "cleanly" pretty much implies "supported by toolkit". gtk glarea for example sets up a framebuffer and expects the application render to that framebuffer. So qemu glarea code does a fb-to-fb blit. Other reasons are scaling and cursor rendering. Not all reasons apply to all UIs. I think when using spice qemu doesn't blit (not fully sure what happens inside spice-server), but it could very well be that the spice-client does the blit instead, i.e. we just shift the issue to another place ... take care, Gerd