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Wed, 29 Jan 2020 11:57:16 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Subject: [PATCH v5 7/8] multifd: Add multifd-zstd-level parameter Date: Wed, 29 Jan 2020 12:56:54 +0100 Message-Id: <20200129115655.10414-8-quintela@redhat.com> In-Reply-To: <20200129115655.10414-1-quintela@redhat.com> References: <20200129115655.10414-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: F5GqyXNZN8qqTJrtR6DFzQ-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eduardo Habkost , Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Paolo Bonzini Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Juan Quintela Acked-by: Markus Armbruster --- migration/migration.c | 15 +++++++++++++++ monitor/hmp-cmds.c | 4 ++++ qapi/migration.json | 29 ++++++++++++++++++++++++++--- 3 files changed, 45 insertions(+), 3 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 3b081e8147..b690500545 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -91,6 +91,8 @@ #define DEFAULT_MIGRATE_MULTIFD_METHOD MULTIFD_METHOD_NONE /*0: means nocompress, 1: best speed, ... 9: best compress ratio */ #define DEFAULT_MIGRATE_MULTIFD_ZLIB_LEVEL 1 +/* 0: means nocompress, 1: best speed, ... 20: best compress ratio */ +#define DEFAULT_MIGRATE_MULTIFD_ZSTD_LEVEL 1 /* Background transfer rate for postcopy, 0 means unlimited, note * that page requests can still exceed this limit. @@ -805,6 +807,8 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->multifd_method = s->parameters.multifd_method; params->has_multifd_zlib_level = true; params->multifd_zlib_level = s->parameters.multifd_zlib_level; + params->has_multifd_zstd_level = true; + params->multifd_zstd_level = s->parameters.multifd_zstd_level; params->has_xbzrle_cache_size = true; params->xbzrle_cache_size = s->parameters.xbzrle_cache_size; params->has_max_postcopy_bandwidth = true; @@ -1219,6 +1223,13 @@ static bool migrate_params_check(MigrationParameters *params, Error **errp) return false; } + if (params->has_multifd_zstd_level && + (params->multifd_zstd_level > 20)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "multifd_zstd_level", + "is invalid, it should be in the range of 0 to 20"); + return false; + } + if (params->has_xbzrle_cache_size && (params->xbzrle_cache_size < qemu_target_page_size() || !is_power_of_2(params->xbzrle_cache_size))) { @@ -3559,6 +3570,9 @@ static Property migration_properties[] = { DEFINE_PROP_UINT8("multifd-zlib-level", MigrationState, parameters.multifd_zlib_level, DEFAULT_MIGRATE_MULTIFD_ZLIB_LEVEL), + DEFINE_PROP_UINT8("multifd-zstd-level", MigrationState, + parameters.multifd_zstd_level, + DEFAULT_MIGRATE_MULTIFD_ZSTD_LEVEL), DEFINE_PROP_SIZE("xbzrle-cache-size", MigrationState, parameters.xbzrle_cache_size, DEFAULT_MIGRATE_XBZRLE_CACHE_SIZE), @@ -3651,6 +3665,7 @@ static void migration_instance_init(Object *obj) params->has_multifd_channels = true; params->has_multifd_method = true; params->has_multifd_zlib_level = true; + params->has_multifd_zstd_level = true; params->has_xbzrle_cache_size = true; params->has_max_postcopy_bandwidth = true; params->has_max_cpu_throttle = true; diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 7f11866446..87db07694b 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -1840,6 +1840,10 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p->has_multifd_zlib_level = true; visit_type_int(v, param, &p->multifd_zlib_level, &err); break; + case MIGRATION_PARAMETER_MULTIFD_ZSTD_LEVEL: + p->has_multifd_zstd_level = true; + visit_type_int(v, param, &p->multifd_zstd_level, &err); + break; case MIGRATION_PARAMETER_XBZRLE_CACHE_SIZE: p->has_xbzrle_cache_size = true; visit_type_size(v, param, &cache_size, &err); diff --git a/qapi/migration.json b/qapi/migration.json index 032ee7d3e6..bb5cb6b4f4 100644 --- a/qapi/migration.json +++ b/qapi/migration.json @@ -610,6 +610,13 @@ # will consume more CPU. # Defaults to 1. (Since 5.0) # +# @multifd-zstd-level: Set the compression level to be used in live +# migration, the compression level is an integer between 0 +# and 20, where 0 means no compression, 1 means the best +# compression speed, and 20 means best compression ratio which +# will consume more CPU. +# Defaults to 1. (Since 5.0) +# # Since: 2.4 ## { 'enum': 'MigrationParameter', @@ -623,7 +630,7 @@ 'multifd-channels', 'xbzrle-cache-size', 'max-postcopy-bandwidth', 'max-cpu-throttle', 'multifd-method', - 'multifd-zlib-level' ] } + 'multifd-zlib-level' ,'multifd-zstd-level' ] } ## # @MigrateSetParameters: @@ -723,6 +730,13 @@ # will consume more CPU. # Defaults to 1. (Since 5.0) # +# @multifd-zstd-level: Set the compression level to be used in live +# migration, the compression level is an integer between 0 +# and 20, where 0 means no compression, 1 means the best +# compression speed, and 20 means best compression ratio which +# will consume more CPU. +# Defaults to 1. (Since 5.0) +# # Since: 2.4 ## # TODO either fuse back into MigrationParameters, or make @@ -750,7 +764,8 @@ '*max-postcopy-bandwidth': 'size', '*max-cpu-throttle': 'int', '*multifd-method': 'MultiFDMethod', - '*multifd-zlib-level': 'int' } } + '*multifd-zlib-level': 'int', + '*multifd-zstd-level': 'int' } } ## # @migrate-set-parameters: @@ -870,6 +885,13 @@ # will consume more CPU. # Defaults to 1. (Since 5.0) # +# @multifd-zstd-level: Set the compression level to be used in live +# migration, the compression level is an integer between 0 +# and 20, where 0 means no compression, 1 means the best +# compression speed, and 20 means best compression ratio which +# will consume more CPU. +# Defaults to 1. (Since 5.0) +# # Since: 2.4 ## { 'struct': 'MigrationParameters', @@ -895,7 +917,8 @@ '*max-postcopy-bandwidth': 'size', '*max-cpu-throttle': 'uint8', '*multifd-method': 'MultiFDMethod', - '*multifd-zlib-level': 'uint8' } } + '*multifd-zlib-level': 'uint8', + '*multifd-zstd-level': 'uint8' } } ## # @query-migrate-parameters: