From patchwork Wed Nov 22 19:20:09 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: George Dunlap X-Patchwork-Id: 10070801 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B7A7660595 for ; Wed, 22 Nov 2017 19:23:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC4F128C49 for ; Wed, 22 Nov 2017 19:23:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A113F29C20; Wed, 22 Nov 2017 19:23:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 33C7128C49 for ; Wed, 22 Nov 2017 19:23:12 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eHaZX-0007CD-1c; Wed, 22 Nov 2017 19:20:35 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eHaZV-0007BC-LF for xen-devel@lists.xenproject.org; Wed, 22 Nov 2017 19:20:33 +0000 Received: from [193.109.254.147] by server-6.bemta-6.messagelabs.com id 46/02-05156-00EC51A5; Wed, 22 Nov 2017 19:20:32 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprGIsWRWlGSWpSXmKPExsXitHSDvS7DOdE ogx9XxSy+b5nM5MDocfjDFZYAxijWzLyk/IoE1oxrZ58xF8wWqjh7+h5TA+M6/i5GTg4JAX+J xS/uMoHYbAJ6EvOOf2XpYuTgEBFQkbi916CLkYuDWWAbk8SON1NZQGqEBWwk3n1rYwWpYRFQl Xg8QQIkzCtgK/H8wVtmiJHyEou/72QDsTkF7CQeTZ4PZgsB1ZzaOpcZwlaVWPzgKDtEr6DEyZ lPwMYzC0hIHHzxgnkCI+8sJKlZSFILGJlWMWoUpxaVpRbpGpnqJRVlpmeU5CZm5ugaGpjp5aY WFyemp+YkJhXrJefnbmIEhg4DEOxgXLUg8BCjJAeTkihv8HKRKCG+pPyUyozE4oz4otKc1OJD jDIcHEoSvN/PiEYJCRalpqdWpGXmAIMYJi3BwaMkwvsCJM1bXJCYW5yZDpE6xWjM8Wzm6wZmj mlXW5uYhVjy8vNSpcR5r4CUCoCUZpTmwQ2CRdclRlkpYV5GoNOEeApSi3IzS1DlXzGKczAqCf PynAWawpOZVwK37xXQKUxAp/w8LgxySkkiQkqqgXFBS8wTaTmV2vTj8iJh7zbyLuF0is/mcjy ybKlYqZbGYolnqhtEZCs3vA/rvzOxvzLrxBSlxYlSWX2WrBal1ufy4nb7Xv1+apm6/sHfBcK8 hoyr/sz6FOFvElxhMPeZYH4V7ztBp7elStMXOjPumczGG/UphP+1sdEj2d6lHXel3Vgjdj9SU GIpzkg01GIuKk4EAFdXQ5SpAgAA X-Env-Sender: prvs=49202577f=George.Dunlap@citrix.com X-Msg-Ref: server-12.tower-27.messagelabs.com!1511378430!116261866!1 X-Originating-IP: [66.165.176.63] X-SpamReason: No, hits=0.0 required=7.0 tests=sa_preprocessor: VHJ1c3RlZCBJUDogNjYuMTY1LjE3Ni42MyA9PiAzMDYwNDg=\n, received_headers: No Received headers X-StarScan-Received: X-StarScan-Version: 9.4.45; banners=-,-,- X-VirusChecked: Checked Received: (qmail 27151 invoked from network); 22 Nov 2017 19:20:32 -0000 Received: from smtp02.citrix.com (HELO SMTP02.CITRIX.COM) (66.165.176.63) by server-12.tower-27.messagelabs.com with RC4-SHA encrypted SMTP; 22 Nov 2017 19:20:32 -0000 X-IronPort-AV: E=Sophos;i="5.44,436,1505779200"; d="scan'208";a="460304150" From: George Dunlap To: Date: Wed, 22 Nov 2017 19:20:09 +0000 Message-ID: <20171122192024.21187-2-george.dunlap@citrix.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171122192024.21187-1-george.dunlap@citrix.com> References: <20171122192024.21187-1-george.dunlap@citrix.com> MIME-Version: 1.0 Cc: Nathan Studer , Wei Liu , Andrew Cooper , Dario Faggioli , Tim Deegan , George Dunlap , Jan Beulich , Ian Jackson Subject: [Xen-devel] [PATCH v3 02/17] SUPPORT.md: Add core functionality X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Core memory management and scheduling. Signed-off-by: George Dunlap --- Changes since v2: - s/Memory Ballooning/Dynamic memory control/; - And add a description that mentions ballooning CC: Ian Jackson CC: Wei Liu CC: Andrew Cooper CC: Jan Beulich CC: Tim Deegan CC: Dario Faggioli CC: Nathan Studer --- SUPPORT.md | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/SUPPORT.md b/SUPPORT.md index e3d5d1de8d..934028074b 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -16,6 +16,68 @@ for the definitions of the support status levels etc. # Feature Support +## Memory Management + +### Dynamic memory control + + Status: Supported + +Allows a guest to add or remove memory after boot-time. +This is typically done by a guest kernel agent known as a "balloon driver". + +## Resource Management + +### CPU Pools + + Status: Supported + +Groups physical cpus into distinct groups called "cpupools", +with each pool having the capability +of using different schedulers and scheduling properties. + +### Credit Scheduler + + Status: Supported + +A weighted proportional fair share virtual CPU scheduler. +This is the default scheduler. + +### Credit2 Scheduler + + Status: Supported + +A general purpose scheduler for Xen, +designed with particular focus on fairness, responsiveness, and scalability + +### RTDS based Scheduler + + Status: Experimental + +A soft real-time CPU scheduler +built to provide guaranteed CPU capacity to guest VMs on SMP hosts + +### ARINC653 Scheduler + + Status: Supported + +A periodically repeating fixed timeslice scheduler. +Currently only single-vcpu domains are supported. + +### Null Scheduler + + Status: Experimental + +A very simple, very static scheduling policy +that always schedules the same vCPU(s) on the same pCPU(s). +It is designed for maximum determinism and minimum overhead +on embedded platforms. + +### NUMA scheduler affinity + + Status, x86: Supported + +Enables NUMA aware scheduling in Xen + # Format and definitions This file contains prose, and machine-readable fragments.