From patchwork Mon Jul 24 13:06:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1811811 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=KlC7/4Pd; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4R8gY357xLz1yYC for ; Mon, 24 Jul 2023 23:11:51 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qNvHD-000433-1g; Mon, 24 Jul 2023 09:07:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qNvHA-00041x-3E for qemu-devel@nongnu.org; Mon, 24 Jul 2023 09:07:00 -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 1qNvH7-0002YZ-Cm for qemu-devel@nongnu.org; Mon, 24 Jul 2023 09:06:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1690204016; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HTTb5Z5kDvfeeCH5cQxHKTrfMaQpbET73zReScb//bg=; b=KlC7/4Pdh7KuEFDMCQ+CnPkCBnBBaFGAY2lEROfibBF4iH6H5KwQBFoXoptIB60DBsZHI/ 19cvzlh+SZY3Fw+iH7YaUo/nkYDuXTWuQ9byC5BHjwH7nF/Ml7bi7jU9rW6uay/Ps1zJBj ZYtBqPS60M12EFuWKx16QyQpPKYBfP0= Received: from mimecast-mx02.redhat.com (66.187.233.73 [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-553-8AEyakZHP_iRQTOb01cwEA-1; Mon, 24 Jul 2023 09:06:55 -0400 X-MC-Unique: 8AEyakZHP_iRQTOb01cwEA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 749C33C0ED5C; Mon, 24 Jul 2023 13:06:54 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.115]) by smtp.corp.redhat.com (Postfix) with ESMTP id 80115F7839; Mon, 24 Jul 2023 13:06:52 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Laurent Vivier , Thomas Huth , Markus Armbruster , libvir-list@redhat.com, Paolo Bonzini , Peter Xu , Eric Blake , Juan Quintela , Leonardo Bras , =?utf-8?b?SHltYW4gSHVhbmco6buE5YuHKQ==?= Subject: [PATCH 05/26] qapi/migration: Introduce vcpu-dirty-limit parameters Date: Mon, 24 Jul 2023 15:06:18 +0200 Message-Id: <20230724130639.93135-6-quintela@redhat.com> In-Reply-To: <20230724130639.93135-1-quintela@redhat.com> References: <20230724130639.93135-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: Hyman Huang(黄勇) Introduce "vcpu-dirty-limit" migration parameter used to limit dirty page rate during live migration. "vcpu-dirty-limit" and "x-vcpu-dirty-limit-period" are two dirty-limit-related migration parameters, which can be set before and during live migration by qmp migrate-set-parameters. This two parameters are used to help implement the dirty page rate limit algo of migration. Signed-off-by: Hyman Huang(黄勇) Acked-by: Peter Xu Reviewed-by: Juan Quintela Message-Id: <168618975839.6361.17407633874747688653-3@git.sr.ht> Signed-off-by: Juan Quintela --- qapi/migration.json | 18 +++++++++++++++--- migration/migration-hmp-cmds.c | 8 ++++++++ migration/options.c | 21 +++++++++++++++++++++ 3 files changed, 44 insertions(+), 3 deletions(-) diff --git a/qapi/migration.json b/qapi/migration.json index 384b768e03..aa590dbf0e 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -793,6 +793,9 @@ # live migration. Should be in the range 1 to 1000ms, # defaults to 1000ms. (Since 8.1) # +# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration. +# Defaults to 1. (Since 8.1) +# # Features: # # @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period @@ -816,7 +819,8 @@ 'max-cpu-throttle', 'multifd-compression', 'multifd-zlib-level', 'multifd-zstd-level', 'block-bitmap-mapping', - { 'name': 'x-vcpu-dirty-limit-period', 'features': ['unstable'] } ] } + { 'name': 'x-vcpu-dirty-limit-period', 'features': ['unstable'] }, + 'vcpu-dirty-limit'] } ## # @MigrateSetParameters: @@ -955,6 +959,9 @@ # live migration. Should be in the range 1 to 1000ms, # defaults to 1000ms. (Since 8.1) # +# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration. +# Defaults to 1. (Since 8.1) +# # Features: # # @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period @@ -995,7 +1002,8 @@ '*multifd-zstd-level': 'uint8', '*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ], '*x-vcpu-dirty-limit-period': { 'type': 'uint64', - 'features': [ 'unstable' ] } } } + 'features': [ 'unstable' ] }, + '*vcpu-dirty-limit': 'uint64'} } ## # @migrate-set-parameters: @@ -1154,6 +1162,9 @@ # live migration. Should be in the range 1 to 1000ms, # defaults to 1000ms. (Since 8.1) # +# @vcpu-dirty-limit: Dirtyrate limit (MB/s) during live migration. +# Defaults to 1. (Since 8.1) +# # Features: # # @unstable: Members @x-checkpoint-delay and @x-vcpu-dirty-limit-period @@ -1191,7 +1202,8 @@ '*multifd-zstd-level': 'uint8', '*block-bitmap-mapping': [ 'BitmapMigrationNodeAlias' ], '*x-vcpu-dirty-limit-period': { 'type': 'uint64', - 'features': [ 'unstable' ] } } } + 'features': [ 'unstable' ] }, + '*vcpu-dirty-limit': 'uint64'} } ## # @query-migrate-parameters: diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index 352e9ec716..35e8020bbf 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -368,6 +368,10 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) monitor_printf(mon, "%s: %" PRIu64 " ms\n", MigrationParameter_str(MIGRATION_PARAMETER_X_VCPU_DIRTY_LIMIT_PERIOD), params->x_vcpu_dirty_limit_period); + + monitor_printf(mon, "%s: %" PRIu64 " MB/s\n", + MigrationParameter_str(MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT), + params->vcpu_dirty_limit); } qapi_free_MigrationParameters(params); @@ -628,6 +632,10 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p->has_x_vcpu_dirty_limit_period = true; visit_type_size(v, param, &p->x_vcpu_dirty_limit_period, &err); break; + case MIGRATION_PARAMETER_VCPU_DIRTY_LIMIT: + p->has_vcpu_dirty_limit = true; + visit_type_size(v, param, &p->vcpu_dirty_limit, &err); + break; default: assert(0); } diff --git a/migration/options.c b/migration/options.c index 1de63ba775..7d2d98830e 100644 --- a/migration/options.c +++ b/migration/options.c @@ -81,6 +81,7 @@ DEFINE_PROP_BOOL(name, MigrationState, capabilities[x], false) #define DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT_PERIOD 1000 /* milliseconds */ +#define DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT 1 /* MB/s */ Property migration_properties[] = { DEFINE_PROP_BOOL("store-global-state", MigrationState, @@ -168,6 +169,9 @@ Property migration_properties[] = { DEFINE_PROP_UINT64("x-vcpu-dirty-limit-period", MigrationState, parameters.x_vcpu_dirty_limit_period, DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT_PERIOD), + DEFINE_PROP_UINT64("vcpu-dirty-limit", MigrationState, + parameters.vcpu_dirty_limit, + DEFAULT_MIGRATE_VCPU_DIRTY_LIMIT), /* Migration capabilities */ DEFINE_PROP_MIG_CAP("x-xbzrle", MIGRATION_CAPABILITY_XBZRLE), @@ -915,6 +919,8 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->has_x_vcpu_dirty_limit_period = true; params->x_vcpu_dirty_limit_period = s->parameters.x_vcpu_dirty_limit_period; + params->has_vcpu_dirty_limit = true; + params->vcpu_dirty_limit = s->parameters.vcpu_dirty_limit; return params; } @@ -949,6 +955,7 @@ void migrate_params_init(MigrationParameters *params) params->has_announce_rounds = true; params->has_announce_step = true; params->has_x_vcpu_dirty_limit_period = true; + params->has_vcpu_dirty_limit = true; } /* @@ -1118,6 +1125,14 @@ bool migrate_params_check(MigrationParameters *params, Error **errp) return false; } + if (params->has_vcpu_dirty_limit && + (params->vcpu_dirty_limit < 1)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, + "vcpu_dirty_limit", + "is invalid, it must greater then 1 MB/s"); + return false; + } + return true; } @@ -1222,6 +1237,9 @@ static void migrate_params_test_apply(MigrateSetParameters *params, dest->x_vcpu_dirty_limit_period = params->x_vcpu_dirty_limit_period; } + if (params->has_vcpu_dirty_limit) { + dest->vcpu_dirty_limit = params->vcpu_dirty_limit; + } } static void migrate_params_apply(MigrateSetParameters *params, Error **errp) @@ -1345,6 +1363,9 @@ static void migrate_params_apply(MigrateSetParameters *params, Error **errp) s->parameters.x_vcpu_dirty_limit_period = params->x_vcpu_dirty_limit_period; } + if (params->has_vcpu_dirty_limit) { + s->parameters.vcpu_dirty_limit = params->vcpu_dirty_limit; + } } void qmp_migrate_set_parameters(MigrateSetParameters *params, Error **errp)