From patchwork Mon Sep 5 11:37:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ashijeet Acharya X-Patchwork-Id: 9313513 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 3456A600CA for ; Mon, 5 Sep 2016 11:38:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 21D4828A74 for ; Mon, 5 Sep 2016 11:38:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 15F9728A75; Mon, 5 Sep 2016 11:38:33 +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=-6.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D8C9328A76 for ; Mon, 5 Sep 2016 11:38:30 +0000 (UTC) Received: from localhost ([::1]:53955 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bgsEP-00057k-Ln for patchwork-qemu-devel@patchwork.kernel.org; Mon, 05 Sep 2016 07:38:29 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58852) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bgsE8-00057b-W1 for qemu-devel@nongnu.org; Mon, 05 Sep 2016 07:38:15 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bgsE3-000745-Rq for qemu-devel@nongnu.org; Mon, 05 Sep 2016 07:38:12 -0400 Received: from mail-pa0-x242.google.com ([2607:f8b0:400e:c03::242]:36573) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bgsE3-000741-GH for qemu-devel@nongnu.org; Mon, 05 Sep 2016 07:38:07 -0400 Received: by mail-pa0-x242.google.com with SMTP id ez1so9269530pab.3 for ; Mon, 05 Sep 2016 04:38:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zkgUfWJ8LBz2M0yyD6xpadXaT86ukccof486wC7fuYo=; b=PTgG9bRI4xQcPVpvILhYGVO+DRPIhNlScSiHKdyjwtsal54uTaiia0Z0Zyvyr4sl5C fzTgfSDgbM7UW2I7VzGhL2CDuH2+EyvPh/S/ovwmSGJx93VcYPlo/tMlpy1/uC1N0uhn uVVj/2Z/apuz48JGfXSGJFz1+Q9Kcesj9OQ4KH6CJN3poAovX3S9WwXKnE25U/U8F8cY zBXpGmVgnAcgizgyU3qBOA5v0g3HapuFgL9Rrducz9dgkfzdlm5o380ZSDzKlST4foDm kfiJ5rukxwdmlXX05oDGpWL+6tC9AzfR7m9XYEi7rMUMv4VgdBfxPycWfMN2FjMMU06C 4jNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zkgUfWJ8LBz2M0yyD6xpadXaT86ukccof486wC7fuYo=; b=jw5y3dqMq/XhVRmqfCP92Hjbop5PadK+DUw8vrA/uInX+o90OcnpVoifaeIFDKvF6/ R3XO55ydHVzO0eqs3sNkqi+mnKtrY4AMgPbJKhUbKEAYe04zVkS+vpwnGytjgkypJAyu 7EP2zNaWFRUXv5jLotn/589cFqBcT/UYzonXjSPe1s23+X5IegWIIi1pbBg2/J9Wun7D 5WK0WRohPGricLw8jyWbAbhAXmAJ6gKnvV2Wx4kxaCijBqamgvzWQfyWOiU1wc7seLQ0 XWPY5kDB9G45VZGiTQDcwTlX47NZKOGsi5Usbsl7cgO8FS2v6yCyJY1sGHW05zWGkU3n 2C0w== X-Gm-Message-State: AE9vXwO30TlcztBjskSvN1MfFuH/Hhw47DJ8gE8Co6hjyPs1EeMtqEDfUqzrAV3rhbMXyQ== X-Received: by 10.66.216.130 with SMTP id oq2mr62859833pac.89.1473075486500; Mon, 05 Sep 2016 04:38:06 -0700 (PDT) Received: from linux.local ([122.15.77.135]) by smtp.gmail.com with ESMTPSA id r90sm10978893pfi.16.2016.09.05.04.38.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 05 Sep 2016 04:38:05 -0700 (PDT) From: Ashijeet Acharya To: lcapitulino@redhat.com Date: Mon, 5 Sep 2016 17:07:16 +0530 Message-Id: <1473075436-32489-1-git-send-email-ashijeetacharya@gmail.com> X-Mailer: git-send-email 2.6.2 In-Reply-To: <20160905111620.GA22359@work-vm> References: <20160905111620.GA22359@work-vm> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:400e:c03::242 Subject: [Qemu-devel] [PATCH v2] Move migrate_set_speed and migrate_set_downtime into migrate_set_parameter X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: quintela@redhat.com, qemu-devel@nongnu.org, armbru@redhat.com, dgilbert@redhat.com, Ashijeet Acharya , amit.shah@redhat.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Include migrate_set_speed and migrate_set_downtime inside migrate_set_parameters for setting maximum migration speed and expected downtime parameters respectively. Also update the query part for both in qmp and hmp qemu control interfaces. Signed-off-by: Ashijeet Acharya --- hmp-commands.hx | 6 +++--- hmp.c | 30 +++++++++++++++++++++++++++++- include/migration/migration.h | 1 - migration/migration.c | 30 ++++++++++++++++++++++++++---- qapi-schema.json | 26 +++++++++++++++++++++++--- qmp-commands.hx | 13 ++++++++++--- 6 files changed, 91 insertions(+), 15 deletions(-) diff --git a/hmp-commands.hx b/hmp-commands.hx index 848efee..4dc7899 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1009,15 +1009,15 @@ ETEXI { .name = "migrate_set_parameter", - .args_type = "parameter:s,value:s", - .params = "parameter value", + .args_type = "parameter:s,value:s?,speed:o?", + .params = "parameter value speed", .help = "Set the parameter for migration", .mhandler.cmd = hmp_migrate_set_parameter, .command_completion = migrate_set_parameter_completion, }, STEXI -@item migrate_set_parameter @var{parameter} @var{value} +@item migrate_set_parameter @var{parameter} @var{value} @var{speed} @findex migrate_set_parameter Set the parameter @var{parameter} for migration. ETEXI diff --git a/hmp.c b/hmp.c index cc2056e..fd50e83 100644 --- a/hmp.c +++ b/hmp.c @@ -304,6 +304,12 @@ void hmp_info_migrate_parameters(Monitor *mon, const QDict *qdict) monitor_printf(mon, " %s: '%s'", MigrationParameter_lookup[MIGRATION_PARAMETER_TLS_HOSTNAME], params->tls_hostname ? : ""); + monitor_printf(mon, " %s: %" PRId64, + MigrationParameter_lookup[MIGRATION_PARAMETER_MIGRATE_SET_SPEED], + params->migrate_set_speed); + monitor_printf(mon, " %s: %" PRId64, + MigrationParameter_lookup[MIGRATION_PARAMETER_MIGRATE_SET_DOWNTIME], + params->migrate_set_downtime); monitor_printf(mon, "\n"); } @@ -1193,6 +1199,7 @@ void hmp_migrate_incoming(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, &err); } +/* Kept for old-commands compatibility */ void hmp_migrate_set_downtime(Monitor *mon, const QDict *qdict) { double value = qdict_get_double(qdict, "value"); @@ -1211,6 +1218,7 @@ void hmp_migrate_set_cache_size(Monitor *mon, const QDict *qdict) } } +/* Kept for old-commands compatibility */ void hmp_migrate_set_speed(Monitor *mon, const QDict *qdict) { int64_t value = qdict_get_int(qdict, "value"); @@ -1250,8 +1258,11 @@ void hmp_migrate_set_capability(Monitor *mon, const QDict *qdict) void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) { const char *param = qdict_get_str(qdict, "parameter"); - const char *valuestr = qdict_get_str(qdict, "value"); + const char *valuestr = qdict_get_try_str(qdict, "value"); + int64_t valuespeed = 0; + double valuedowntime = 0; long valueint = 0; + char *endp; Error *err = NULL; bool has_compress_level = false; bool has_compress_threads = false; @@ -1260,6 +1271,8 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) bool has_cpu_throttle_increment = false; bool has_tls_creds = false; bool has_tls_hostname = false; + bool has_migrate_set_speed = false; + bool has_migrate_set_downtime = false; bool use_int_value = false; int i; @@ -1291,6 +1304,19 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) case MIGRATION_PARAMETER_TLS_HOSTNAME: has_tls_hostname = true; break; + case MIGRATION_PARAMETER_MIGRATE_SET_SPEED: + has_migrate_set_speed = true; + valuespeed = qdict_get_int(qdict, "speed"); + break; + case MIGRATION_PARAMETER_MIGRATE_SET_DOWNTIME: + has_migrate_set_downtime = true; + valuedowntime = strtod(valuestr, &endp); + if (valuestr == endp) { + error_setg(&err, "Unable to parse '%s' as a number", + valuestr); + goto cleanup; + } + break; } if (use_int_value) { @@ -1308,6 +1334,8 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict) has_cpu_throttle_increment, valueint, has_tls_creds, valuestr, has_tls_hostname, valuestr, + has_migrate_set_speed, valuespeed, + has_migrate_set_downtime, valuedowntime, &err); break; } diff --git a/include/migration/migration.h b/include/migration/migration.h index 3c96623..a5429ee 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -129,7 +129,6 @@ struct MigrationSrcPageRequest { struct MigrationState { - int64_t bandwidth_limit; size_t bytes_xfer; size_t xfer_limit; QemuThread thread; diff --git a/migration/migration.c b/migration/migration.c index 955d5ee..3768911 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -44,6 +44,9 @@ #define BUFFER_DELAY 100 #define XFER_LIMIT_RATIO (1000 / BUFFER_DELAY) +/* Amount of nanoseconds we are willing to wait for migration to be down. */ +#define DEFAULT_MIGRATE_SET_DOWNTIME 300000000 + /* Default compression thread count */ #define DEFAULT_MIGRATE_COMPRESS_THREAD_COUNT 8 /* Default decompression thread count, usually decompression is at @@ -80,7 +83,6 @@ MigrationState *migrate_get_current(void) static bool once; static MigrationState current_migration = { .state = MIGRATION_STATUS_NONE, - .bandwidth_limit = MAX_THROTTLE, .xbzrle_cache_size = DEFAULT_MIGRATE_CACHE_SIZE, .mbps = -1, .parameters = { @@ -89,6 +91,8 @@ MigrationState *migrate_get_current(void) .decompress_threads = DEFAULT_MIGRATE_DECOMPRESS_THREAD_COUNT, .cpu_throttle_initial = DEFAULT_MIGRATE_CPU_THROTTLE_INITIAL, .cpu_throttle_increment = DEFAULT_MIGRATE_CPU_THROTTLE_INCREMENT, + .migrate_set_speed = MAX_THROTTLE, + .migrate_set_downtime = DEFAULT_MIGRATE_SET_DOWNTIME, }, }; @@ -566,6 +570,8 @@ MigrationParameters *qmp_query_migrate_parameters(Error **errp) params->cpu_throttle_increment = s->parameters.cpu_throttle_increment; params->tls_creds = g_strdup(s->parameters.tls_creds); params->tls_hostname = g_strdup(s->parameters.tls_hostname); + params->migrate_set_speed = s->parameters.migrate_set_speed; + params->migrate_set_downtime = s->parameters.migrate_set_downtime; return params; } @@ -773,6 +779,10 @@ void qmp_migrate_set_parameters(bool has_compress_level, const char *tls_creds, bool has_tls_hostname, const char *tls_hostname, + bool has_migrate_set_speed, + int64_t migrate_set_speed, + bool has_migrate_set_downtime, + double migrate_set_downtime, Error **errp) { MigrationState *s = migrate_get_current(); @@ -832,6 +842,12 @@ void qmp_migrate_set_parameters(bool has_compress_level, g_free(s->parameters.tls_hostname); s->parameters.tls_hostname = g_strdup(tls_hostname); } + if (has_migrate_set_speed) { + qmp_migrate_set_speed(migrate_set_speed, NULL); + } + if (has_migrate_set_downtime) { + qmp_migrate_set_downtime(migrate_set_downtime, NULL); + } } @@ -1175,18 +1191,24 @@ void qmp_migrate_set_speed(int64_t value, Error **errp) } s = migrate_get_current(); - s->bandwidth_limit = value; + s->parameters.migrate_set_speed = value; if (s->to_dst_file) { qemu_file_set_rate_limit(s->to_dst_file, - s->bandwidth_limit / XFER_LIMIT_RATIO); + s->parameters.migrate_set_speed / XFER_LIMIT_RATIO); } } void qmp_migrate_set_downtime(double value, Error **errp) { + MigrationState *s; + value *= 1e9; value = MAX(0, MIN(UINT64_MAX, value)); + + s = migrate_get_current(); + max_downtime = (uint64_t)value; + s->parameters.migrate_set_downtime = max_downtime; } bool migrate_postcopy_ram(void) @@ -1858,7 +1880,7 @@ void migrate_fd_connect(MigrationState *s) qemu_file_set_blocking(s->to_dst_file, true); qemu_file_set_rate_limit(s->to_dst_file, - s->bandwidth_limit / XFER_LIMIT_RATIO); + s->parameters.migrate_set_speed / XFER_LIMIT_RATIO); /* Notify before starting migration thread */ notifier_list_notify(&migration_state_notifiers, s); diff --git a/qapi-schema.json b/qapi-schema.json index 5658723..b98be44 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -637,12 +637,18 @@ # hostname must be provided so that the server's x509 # certificate identity can be validated. (Since 2.7) # +# @migrate-set-speed: to set maximum speed for migration. A value lesser than +# zero will be automatically round upto zero. +# +# @migrate-set-downtime: set maximum tolerated downtime for migration. +# # Since: 2.4 ## { 'enum': 'MigrationParameter', 'data': ['compress-level', 'compress-threads', 'decompress-threads', 'cpu-throttle-initial', 'cpu-throttle-increment', - 'tls-creds', 'tls-hostname'] } + 'tls-creds', 'tls-hostname', 'migrate-set-speed', + 'migrate-set-downtime'] } # # @migrate-set-parameters @@ -678,6 +684,11 @@ # hostname must be provided so that the server's x509 # certificate identity can be validated. (Since 2.7) # +# @migrate-set-speed: to set maximum speed for migration. A value lesser than +# zero will be automatically round upto zero. +# +# @migrate-set-downtime: set maximum tolerated downtime for migration. +# # Since: 2.4 ## { 'command': 'migrate-set-parameters', @@ -687,7 +698,9 @@ '*cpu-throttle-initial': 'int', '*cpu-throttle-increment': 'int', '*tls-creds': 'str', - '*tls-hostname': 'str'} } + '*tls-hostname': 'str', + '*migrate-set-speed': 'int', + '*migrate-set-downtime': 'number'} } # # @MigrationParameters @@ -721,6 +734,11 @@ # hostname must be provided so that the server's x509 # certificate identity can be validated. (Since 2.7) # +# @migrate-set-speed: to set maximum speed for migration. A value lesser than +# zero will be automatically round upto zero. +# +# @migrate-set-downtime: set maximum tolerated downtime for migration. +# # Since: 2.4 ## { 'struct': 'MigrationParameters', @@ -730,7 +748,9 @@ 'cpu-throttle-initial': 'int', 'cpu-throttle-increment': 'int', 'tls-creds': 'str', - 'tls-hostname': 'str'} } + 'tls-hostname': 'str', + 'migrate-set-speed': 'int', + 'migrate-set-downtime': 'int'} } ## # @query-migrate-parameters # diff --git a/qmp-commands.hx b/qmp-commands.hx index 6866264..c4d3809 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -3790,7 +3790,9 @@ Set migration parameters throttled for auto-converge (json-int) - "cpu-throttle-increment": set throttle increasing percentage for auto-converge (json-int) - +- "migrate-set-speed": set maximum speed for migrations (json-octets) +- "migrate-set-downtime": set maximum tolerated downtime (in seconds) for + migrations (json-number) Arguments: Example: @@ -3803,7 +3805,7 @@ EQMP { .name = "migrate-set-parameters", .args_type = - "compress-level:i?,compress-threads:i?,decompress-threads:i?,cpu-throttle-initial:i?,cpu-throttle-increment:i?", + "compress-level:i?,compress-threads:i?,decompress-threads:i?,cpu-throttle-initial:i?,cpu-throttle-increment:i?,migrate-set-speed:o?,migrate-set-downtime:T?", .mhandler.cmd_new = qmp_marshal_migrate_set_parameters, }, SQMP @@ -3820,6 +3822,9 @@ Query current migration parameters throttled (json-int) - "cpu-throttle-increment" : throttle increasing percentage for auto-converge (json-int) + - "migrate-set-speed" : maximium migration speed (json-octets) + - "migration-set-downtime" : maximum tolerated downtime of migration + (json-number) Arguments: @@ -3832,7 +3837,9 @@ Example: "cpu-throttle-increment": 10, "compress-threads": 8, "compress-level": 1, - "cpu-throttle-initial": 20 + "cpu-throttle-initial": 20, + "migration-set-speed": 33554432, + "migration-set-downtime": 300000000 } }