From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 99C43606A31E for ; Fri, 30 Oct 2026 19:12:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=XXuSuxFK Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1xMs0r-000578-TB; Fri, 30 Oct 2026 15:11:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xMs0q-00056i-Si for qemu-devel@nongnu.org; Fri, 30 Oct 2026 15:11:40 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xMs0p-00060f-Hm for qemu-devel@nongnu.org; Fri, 30 Oct 2026 15:11:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1793387498; 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=+bkxxW4K/9+AjsIchrpaygjmeOZk2FnyxrT/AS5IwPs=; b=XXuSuxFKKYRosW+Rnw6wEOOBBHGITws9YxG7V3JQtDHQMZFRQS1MLwXxX4F/c6JLaj948c 9OdG21Rykt3b1kUplkl5DHzvJvdp1pPD2rO9yZaRVctjUTF7EGV0rt94gclxxe+7sUQDwj z44UJh3kzCW72L4Qjf70BrEanK6LY94= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-553-mXIS3Q5tPR6iWUe8LG0D3g-1; Fri, 30 Oct 2026 15:11:27 -0400 X-MC-Unique: mXIS3Q5tPR6iWUe8LG0D3g-1 X-Mimecast-MFC-AGG-ID: mXIS3Q5tPR6iWUe8LG0D3g_1793387486 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 858F01800657; Fri, 30 Oct 2026 19:11:25 +0000 (UTC) Received: from redhat.com (unknown [10.44.32.76]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AB55518001CA; Fri, 30 Oct 2026 19:11:22 +0000 (UTC) Date: Fri, 30 Oct 2026 20:11:20 +0100 From: Kevin Wolf To: Jean-Louis Dupond Cc: qemu-devel@nongnu.org, Pierrick Bouvier , John Snow , Vladimir Sementsov-Ogievskiy , Hanna Reitz , Fiona Ebner , qemu-block@nongnu.org Subject: Re: [PATCH v2 3/3] iotests/290: add test case for qemu-img measure Message-ID: References: <20260915140444.1223798-1-jean-louis@dupond.be> <20260915140444.1223798-4-jean-louis@dupond.be> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260915140444.1223798-4-jean-louis@dupond.be> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: qemu development List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Am 15.09.2026 um 16:04 hat Jean-Louis Dupond geschrieben: > We create an image, write and discard some data in it, and then create a > snapshot. In the snapshot we write and discard again some data. > Then we measure the images with the base specified to calculate the > merged image size. Finally we commit the image and check it's size. > > This scenario is executed for discard-no-unref enabled and disabled. > > Signed-off-by: Jean-Louis Dupond You could maybe add the cases I commented on in patch 2, i.e. having an explicit zero cluster in the base file (which shouldn't count) and an encrypted base (which should count its clusters despite not having BDRV_BLOCK_OFFSET_VALID). Kevin