From nobody Mon Feb 9 19:04:49 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of redhat.com designates 170.10.133.124 as permitted sender) client-ip=170.10.133.124; envelope-from=libvir-list-bounces@redhat.com; helo=us-smtp-delivery-124.mimecast.com; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail(p=none dis=none) header.from=git.sr.ht ARC-Seal: i=1; a=rsa-sha256; t=1697078717; cv=none; d=zohomail.com; s=zohoarc; b=hcIoDP7zjVkpcKMZxiWWlJa0XSe2+0W9HDTsN5lOPLt93vlmDTXHk7lVuLLUZD5zX4I5g6FWXe7BixfbaVhW8CO4RxN4TmMrT25Woowz4zjZ7bJMHTgNd9sNtnNlSECWPrwUfL0RDvZuNMQeiwwigU57DIxyukQZpqx2ZSn7vsQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1697078717; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:Sender:Subject:Subject:To:To:Message-Id; bh=rLQ4hBhYlTMI6kXD8XX9zIwTyWqsen0BYaxRAw2BkWg=; b=ezAxJo/u9JXBKhwE9hECQGhTzqDQDDq9H13xNgxVQom0hFBeWG8YQLpnLn1uJLLHz1kr8OO24+sQ2QzlMskbpw6zO2GocFk1quSazjEspT8zRTGdOJYWpuaJ/moovI/pRYQQCA+MRx1MbIS8oRU/orbklSNvSwwYUvDSVp78kRI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=fail header.from= (p=none dis=none) Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mx.zohomail.com with SMTPS id 1697078717300694.6831284632264; Wed, 11 Oct 2023 19:45:17 -0700 (PDT) Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-534-9xMiLmXBPn-WyBlojzs2kA-1; Wed, 11 Oct 2023 22:45:12 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 77AF82815E32; Thu, 12 Oct 2023 02:45:09 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com [10.30.29.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9DDB6215671F; Thu, 12 Oct 2023 02:45:07 +0000 (UTC) Received: from mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (localhost [IPv6:::1]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 2AF0319465A4; Thu, 12 Oct 2023 02:45:07 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) by mm-prod-listman-01.mail-001.prod.us-east-1.aws.redhat.com (Postfix) with ESMTP id 744BE1946586 for ; Thu, 12 Oct 2023 02:45:05 +0000 (UTC) Received: by smtp.corp.redhat.com (Postfix) id 61147492C3E; Thu, 12 Oct 2023 02:45:05 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast07.extmail.prod.ext.rdu2.redhat.com [10.11.55.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5A7AE492B01 for ; Thu, 12 Oct 2023 02:45:05 +0000 (UTC) Received: from us-smtp-inbound-delivery-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3E4B33C0F679 for ; Thu, 12 Oct 2023 02:45:05 +0000 (UTC) Received: from mail-b.sr.ht (mail-b.sr.ht [173.195.146.151]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-629-IUQy1gbbMA-BGYf1qsYfNw-1; Wed, 11 Oct 2023 22:45:03 -0400 Received: from git.sr.ht (unknown [173.195.146.142]) by mail-b.sr.ht (Postfix) with ESMTPSA id 2FDF711F1F8; Thu, 12 Oct 2023 02:39:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697078716; h=from:from:sender:sender:reply-to: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:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=rLQ4hBhYlTMI6kXD8XX9zIwTyWqsen0BYaxRAw2BkWg=; b=gY6LCUIdbxfOR7LbMcI3PBPyRunUqRRZ+oe0Y4cWtuTYnxsFdsmrYjxbgz3TxIZ/V1jASx 8ZzfyMipyUs+360+kAz+tdQ5wYC5fCEAO8Qt1r5QeCXStrRAT4j9tYChhsljjjIYlwH3AC DJlNWDY2J/5YNQxajnVMvCpSfKxR1+E= X-MC-Unique: 9xMiLmXBPn-WyBlojzs2kA-1 X-Original-To: libvir-list@listman.corp.redhat.com X-MC-Unique: IUQy1gbbMA-BGYf1qsYfNw-1 From: ~hyman Date: Thu, 12 Oct 2023 10:13:21 +0800 Subject: [PATCH Libvirt 4/4] NEWS: document support for dirty-limit live migration Message-ID: <169707837820.18882.17395313264013602078-4@git.sr.ht> In-Reply-To: <169707837820.18882.17395313264013602078-0@git.sr.ht> To: libvir-list@redhat.com MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: ~hyman Cc: yong.huang@smartx.com Errors-To: libvir-list-bounces@redhat.com Sender: "libvir-list" X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: git.sr.ht Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1697078717783100001 From: Hyman Huang Signed-off-by: Hyman Huang --- NEWS.rst | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index fbdd9674a3..dd0dda923e 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -25,6 +25,14 @@ v9.9.0 (unreleased) guest features to see if the current libvirt supports both deleting and reverting external snapshots. =20 + * QEMU: Support dirty-limit live migration + + Introduce ``VIR_MIGRATE_DIRTY_LIMIT`` flag for live migration API, + which can enable the dirty-limit convergence algorithm during live + migration and reap more stable read performance for guest vCPUs. + + Also, add the corresponding ``--dirty-limit`` option to ``virsh migrat= e``. + * **Improvements** =20 * **Bug fixes** --=20 2.38.5