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GET /api/patches/815711/?format=api
{ "id": 815711, "url": "http://patchwork.ozlabs.org/api/patches/815711/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1505839684-10046-6-git-send-email-a.perevalov@samsung.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1505839684-10046-6-git-send-email-a.perevalov@samsung.com>", "list_archive_url": null, "date": "2017-09-19T16:47:59", "name": "[v10,05/10] migration: introduce postcopy-blocktime capability", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "c9d7ea0aa95b9ff9175044cdede65c177a6d9cb5", "submitter": { "id": 18164, "url": "http://patchwork.ozlabs.org/api/people/18164/?format=api", "name": "Alexey Perevalov", "email": "a.perevalov@samsung.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/1505839684-10046-6-git-send-email-a.perevalov@samsung.com/mbox/", "series": [ { "id": 3930, "url": "http://patchwork.ozlabs.org/api/series/3930/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=3930", "date": "2017-09-19T16:48:03", "name": "calculate blocktime for postcopy live migration", "version": 10, "mbox": "http://patchwork.ozlabs.org/series/3930/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/815711/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/815711/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xxVDc2Zmgz9rvt\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 20 Sep 2017 03:27:11 +1000 (AEST)", "from localhost ([::1]:44273 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1duMIe-00011o-KT\n\tfor incoming@patchwork.ozlabs.org; Tue, 19 Sep 2017 13:27:08 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:42446)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <a.perevalov@samsung.com>) id 1duLhF-0001Cn-2o\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:48:32 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <a.perevalov@samsung.com>) id 1duLhC-0006PK-OE\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:48:29 -0400", "from mailout1.w1.samsung.com ([210.118.77.11]:33240)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <a.perevalov@samsung.com>)\n\tid 1duLhC-0006OB-Ib\n\tfor qemu-devel@nongnu.org; Tue, 19 Sep 2017 12:48:26 -0400", "from eucas1p1.samsung.com (unknown [182.198.249.206])\n\tby mailout1.w1.samsung.com (KnoxPortal) with ESMTP id\n\t20170919164825euoutp01cb2cf7ff64dd10f39ef79cec48618176~l0TvIQkjG2660026600euoutp01N;\n\tTue, 19 Sep 2017 16:48:25 +0000 (GMT)", "from eusmges3.samsung.com (unknown [203.254.199.242]) by\n\teucas1p2.samsung.com (KnoxPortal) with ESMTP id\n\t20170919164824eucas1p2881fe8443e29433df8a40ba940630cf0~l0TuYl52X0223102231eucas1p2g;\n\tTue, 19 Sep 2017 16:48:24 +0000 (GMT)", "from eucas1p2.samsung.com ( [182.198.249.207]) by\n\teusmges3.samsung.com (EUCPMTA) with SMTP id 60.2F.12867.75A41C95;\n\tTue, 19 Sep 2017 17:48:23 +0100 (BST)", "from eusmgms1.samsung.com (unknown [182.198.249.179]) by\n\teucas1p2.samsung.com (KnoxPortal) with ESMTP id\n\t20170919164823eucas1p25540d608fc48a5e0ebd2f170416aec45~l0TttndmK2115421154eucas1p2j;\n\tTue, 19 Sep 2017 16:48:23 +0000 (GMT)", "from eusync1.samsung.com ( [203.254.199.211]) by\n\teusmgms1.samsung.com (EUCPMTA) with SMTP id F4.6C.18832.75A41C95;\n\tTue, 19 Sep 2017 17:48:23 +0100 (BST)", "from aperevalov-ubuntu.rnd.samsung.ru ([106.109.129.199]) by\n\teusync1.samsung.com (Oracle Communications Messaging Server\n\t7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id\n\t<0OWJ003OHDC8XU40@eusync1.samsung.com>; \n\tTue, 19 Sep 2017 17:48:23 +0100 (BST)" ], "X-AuditID": "cbfec7f2-f793b6d000003243-fa-59c14a5738cf", "From": "Alexey Perevalov <a.perevalov@samsung.com>", "To": "qemu-devel@nongnu.org", "Date": "Tue, 19 Sep 2017 19:47:59 +0300", "Message-id": "<1505839684-10046-6-git-send-email-a.perevalov@samsung.com>", "X-Mailer": "git-send-email 1.9.1", "In-reply-to": "<1505839684-10046-1-git-send-email-a.perevalov@samsung.com>", "X-Brightmail-Tracker": [ 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"H4sIAAAAAAAAA+NgFuplluLIzCtJLcpLzFFi42I5/e/4Zd1wr4ORBpe3KVnMvXuexaJ32z12\n\ti4lv17NaTPt8m93iSvtPdost+7+xWxzv3cFicWdLH5MDh8eTa5uZPN7vu8rm0bdlFWMAcxSX\n\tTUpqTmZZapG+XQJXxu3Ju1gK2oQq5uxoZmpgfMTXxcjJISFgInHx5kc2CFtM4sK99UA2F4eQ\n\twBJGic5npxkhnF4miZNPjrN2MXJwsAkYSOy7ZwvSICIgKfG76zQzSA2zwBZGiY3HVzKCJIQF\n\tfCWuTbrDAlLPIqAqMX8RWCuvgLtEy05xiF1yEiePTWYFsTkFPCRuHV/LDmILAZXcWHudaQIj\n\t7wJGhlWMIqmlxbnpucWGesWJucWleel6yfm5mxiBgbTt2M/NOxgvbQw+xCjAwajEw7vC5mCk\n\tEGtiWXFl7iFGCQ5mJRHe105AId6UxMqq1KL8+KLSnNTiQ4zSHCxK4ry9e1ZHCgmkJ5akZqem\n\tFqQWwWSZODilGhhj2fxdxK9IlXd+fif68+j7zONT9c7Mjo9dLhfX38Sxw/O7fGryS6Wz3Upc\n\tE02XvPadauEZx7x5fdCl50cEvP7x751bpuO22ZGhY93LRZMlZPLuvzfSVulYmeS8as0UjpW1\n\tSx2/Zf5pP7Hk8Ik3ps/TeKTLOO5/V9hbd0XmVOK3MNM/zROZrLOVWIozEg21mIuKEwG7R5uR\n\tIAIAAA==" ], "X-CMS-MailID": "20170919164823eucas1p25540d608fc48a5e0ebd2f170416aec45", "X-Msg-Generator": "CA", "X-Sender-IP": "182.198.249.179", "X-Local-Sender": "=?utf-8?q?Alexey_Perevalov=1BSRR-Virtualization_Lab=1B?=\n\t=?utf-8?b?7IK87ISx7KCE7J6QG1NlbmlvciBFbmdpbmVlcg==?=", "X-Global-Sender": "=?utf-8?q?Alexey_Perevalov=1BSRR-Virtualization_Lab=1BSa?=\n\t=?utf-8?q?msung_Electronics=1BSenior_Engineer?=", "X-Sender-Code": "=?utf-8?q?C10=1BCISHQ=1BC10GD01GD010154?=", "CMS-TYPE": "201P", "X-CMS-RootMailID": "20170919164823eucas1p25540d608fc48a5e0ebd2f170416aec45", "X-RootMTR": "20170919164823eucas1p25540d608fc48a5e0ebd2f170416aec45", "References": "<1505839684-10046-1-git-send-email-a.perevalov@samsung.com>\n\t<CGME20170919164823eucas1p25540d608fc48a5e0ebd2f170416aec45@eucas1p2.samsung.com>", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 3.x [fuzzy]", "X-Received-From": "210.118.77.11", "Subject": "[Qemu-devel] [PATCH v10 05/10] migration: introduce\n\tpostcopy-blocktime capability", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "heetae82.ahn@samsung.com, quintela@redhat.com,\n\tAlexey Perevalov <a.perevalov@samsung.com>, peterx@redhat.com,\n\tdgilbert@redhat.com, i.maximets@samsung.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Right now it could be used on destination side to\nenable vCPU blocktime calculation for postcopy live migration.\nvCPU blocktime - it's time since vCPU thread was put into\ninterruptible sleep, till memory page was copied and thread awake.\n\nReviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>\nSigned-off-by: Alexey Perevalov <a.perevalov@samsung.com>\n---\n migration/migration.c | 9 +++++++++\n migration/migration.h | 1 +\n qapi/migration.json | 5 ++++-\n 3 files changed, 14 insertions(+), 1 deletion(-)", "diff": "diff --git a/migration/migration.c b/migration/migration.c\nindex e820d47..4f029e8 100644\n--- a/migration/migration.c\n+++ b/migration/migration.c\n@@ -1380,6 +1380,15 @@ bool migrate_zero_blocks(void)\n return s->enabled_capabilities[MIGRATION_CAPABILITY_ZERO_BLOCKS];\n }\n \n+bool migrate_postcopy_blocktime(void)\n+{\n+ MigrationState *s;\n+\n+ s = migrate_get_current();\n+\n+ return s->enabled_capabilities[MIGRATION_CAPABILITY_POSTCOPY_BLOCKTIME];\n+}\n+\n bool migrate_use_compression(void)\n {\n MigrationState *s;\ndiff --git a/migration/migration.h b/migration/migration.h\nindex 148c9fa..56bf33c 100644\n--- a/migration/migration.h\n+++ b/migration/migration.h\n@@ -184,6 +184,7 @@ int migrate_compress_level(void);\n int migrate_compress_threads(void);\n int migrate_decompress_threads(void);\n bool migrate_use_events(void);\n+bool migrate_postcopy_blocktime(void);\n \n /* Sending on the return path - generic and then for each message type */\n void migrate_send_rp_shut(MigrationIncomingState *mis,\ndiff --git a/qapi/migration.json b/qapi/migration.json\nindex ee2b3b8..2e4a15d 100644\n--- a/qapi/migration.json\n+++ b/qapi/migration.json\n@@ -341,12 +341,15 @@\n # @return-path: If enabled, migration will use the return path even\n # for precopy. (since 2.10)\n #\n+# @postcopy-blocktime: Calculate downtime for postcopy live migration\n+# (since 2.11)\n+#\n # Since: 1.2\n ##\n { 'enum': 'MigrationCapability',\n 'data': ['xbzrle', 'rdma-pin-all', 'auto-converge', 'zero-blocks',\n 'compress', 'events', 'postcopy-ram', 'x-colo', 'release-ram',\n- 'block', 'return-path' ] }\n+ 'block', 'return-path', 'postcopy-blocktime' ] }\n \n ##\n # @MigrationCapabilityStatus:\n", "prefixes": [ "v10", "05/10" ] }