From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33765) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cVmEC-0002EQ-Aj for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:41 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cVmE9-00035c-BB for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:40 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54922) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cVmE9-000347-2q for qemu-devel@nongnu.org; Mon, 23 Jan 2017 16:32:37 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 463BD7FB75 for ; Mon, 23 Jan 2017 21:32:37 +0000 (UTC) From: Juan Quintela Date: Mon, 23 Jan 2017 22:32:11 +0100 Message-Id: <1485207141-1941-8-git-send-email-quintela@redhat.com> In-Reply-To: <1485207141-1941-1-git-send-email-quintela@redhat.com> References: <1485207141-1941-1-git-send-email-quintela@redhat.com> Subject: [Qemu-devel] [PATCH 07/17] migration: Create x-multifd-group parameter List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: amit.shah@redhat.com, dgilbert@redhat.com Indicates how many pages we are going to send in each bach to a multifd thread. Signed-off-by: Juan Quintela --- hmp.c | 8 ++++++++ include/migration/migration.h | 1 + migration/migration.c | 23 +++++++++++++++++++++++ qapi-schema.json | 11 +++++++++-- 4 files changed, 41 insertions(+), 2 deletions(-) diff --git a/hmp.c b/hmp.c index 8c7e302..e579766 100644 --- a/hmp.c +++ b/hmp.c @@ -325,6 +325,9 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) monitor_printf(mon, " %s: %" PRId64, MigrationParameter_lookup[MIGRATION_PARAMETER_X_MULTIFD_THREADS], params->x_multifd_threads); + monitor_printf(mon, " %s: %" PRId64, + MigrationParameter_lookup[MIGRATION_PARAMETER_X_MULTIFD_GROUP], + params->x_multifd_group); monitor_printf(mon, "\n"); } @@ -1401,6 +1404,10 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p.has_x_multifd_threads = true; use_int_value = true; break; + case MIGRATION_PARAMETER_X_MULTIFD_GROUP: + p.has_x_multifd_group = true; + use_int_value = true; + break; } if (use_int_value) { @@ -1419,6 +1426,7 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) p.downtime_limit = valueint; p.x_checkpoint_delay = valueint; p.x_multifd_threads = valueint; + p.x_multifd_group = valueint; } qmp_migrate_set_parameters(&p, &err); diff --git a/include/migration/migration.h b/include/migration/migration.h index b35044c..515569d 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -248,6 +248,7 @@ bool migration_in_postcopy_after_devices(MigrationState *); MigrationState *migrate_get_current(void); int migrate_multifd_threads(void); +int migrate_multifd_group(void); void migrate_compress_threads_create(void); void migrate_compress_threads_join(void); diff --git a/migration/migration.c b/migration/migration.c index 2fe03d8..9bde01b 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -68,6 +68,7 @@ */ #define DEFAULT_MIGRATE_X_CHECKPOINT_DELAY 200 #define DEFAULT_MIGRATE_MULTIFD_THREADS 2 +#define DEFAULT_MIGRATE_MULTIFD_GROUP 16 static NotifierList migration_state_notifiers = NOTIFIER_LIST_INITIALIZER(migration_state_notifiers); @@ -103,6 +104,7 @@ MigrationState *migrate_get_current(void) .downtime_limit = DEFAULT_MIGRATE_SET_DOWNTIME, .x_checkpoint_delay = DEFAULT_MIGRATE_X_CHECKPOINT_DELAY, .x_multifd_threads = DEFAULT_MIGRATE_MULTIFD_THREADS, + .x_multifd_group = DEFAULT_MIGRATE_MULTIFD_GROUP, }, }; @@ -595,6 +597,8 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->x_checkpoint_delay = s->parameters.x_checkpoint_delay; params->has_x_multifd_threads = true; params->x_multifd_threads = s->parameters.x_multifd_threads; + params->has_x_multifd_group = true; + params->x_multifd_group = s->parameters.x_multifd_group; return params; } @@ -865,6 +869,13 @@ void qmp_migrate_set_parameters(MigrationParameters *params, Error **errp) "is invalid, it should be in the range of 1 to 255"); return; } + if (params->has_x_multifd_group && + (params->x_multifd_group < 1 || params->x_multifd_group > 10000)) { + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, + "multifd_group", + "is invalid, it should be in the range of 1 to 10000"); + return; + } if (params->has_compress_level) { s->parameters.compress_level = params->compress_level; @@ -906,6 +917,9 @@ void qmp_migrate_set_parameters(MigrationParameters *params, Error **errp) if (params->has_x_multifd_threads) { s->parameters.x_multifd_threads = params->x_multifd_threads; } + if (params->has_x_multifd_group) { + s->parameters.x_multifd_group = params->x_multifd_group; + } } @@ -1351,6 +1365,15 @@ int migrate_multifd_threads(void) return s->parameters.x_multifd_threads; } +int migrate_multifd_group(void) +{ + MigrationState *s; + + s = migrate_get_current(); + + return s->parameters.x_multifd_group; +} + int migrate_use_xbzrle(void) { MigrationState *s; diff --git a/qapi-schema.json b/qapi-schema.json index 2273864..54232ee 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -984,6 +984,9 @@ # @x-multifd-threads: Number of threads used to migrate data in parallel # The default value is 2 (since 2.9) # +# @x-multifd-group: Number of pages sent together to a thread +# The default value is 32 (since 2.9) +# # Since: 2.4 ## { 'enum': 'MigrationParameter', @@ -991,7 +994,7 @@ 'cpu-throttle-initial', 'cpu-throttle-increment', 'tls-creds', 'tls-hostname', 'max-bandwidth', 'downtime-limit', 'x-checkpoint-delay', - 'x-multifd-threads'] } + 'x-multifd-threads', 'x-multifd-group'] } ## # @migrate-set-parameters: @@ -1058,6 +1061,9 @@ # @x-multifd-threads: Number of threads used to migrate data in parallel # The default value is 1 (since 2.9) # +# @x-multifd-group: Number of pages sent together in a bunch +# The default value is 32 (since 2.9) +# # Since: 2.4 ## { 'struct': 'MigrationParameters', @@ -1071,7 +1077,8 @@ '*max-bandwidth': 'int', '*downtime-limit': 'int', '*x-checkpoint-delay': 'int', - '*x-multifd-threads': 'int'} } + '*x-multifd-threads': 'int', + '*x-multifd-group': 'int'} } ## # @query-migrate-parameters: -- 2.9.3