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Mon, 15 May 2023 15:57:55 -0400 X-MC-Unique: IRhQcHelPXCaaKmtw0perg-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 65C352999B28; Mon, 15 May 2023 19:57:54 +0000 (UTC) Received: from secure.mitica (unknown [10.39.194.171]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9B923492B00; Mon, 15 May 2023 19:57:50 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Peter Xu , Greg Kurz , qemu-s390x@nongnu.org, Fam Zheng , Ilya Leoshkevich , Halil Pasic , John Snow , qemu-ppc@nongnu.org, Daniel Henrique Barboza , Harsh Prateek Bora , Christian Borntraeger , Richard Henderson , David Gibson , David Hildenbrand , Stefan Hajnoczi , Eric Farman , qemu-block@nongnu.org, =?utf-8?q?C?= =?utf-8?q?=C3=A9dric_Le_Goater?= , Eric Blake , Leonardo Bras , Thomas Huth , Juan Quintela , Vladimir Sementsov-Ogievskiy Subject: [PATCH v2 08/16] migration: Use migration_transferred_bytes() to calculate rate_limit Date: Mon, 15 May 2023 21:57:01 +0200 Message-Id: <20230515195709.63843-9-quintela@redhat.com> In-Reply-To: <20230515195709.63843-1-quintela@redhat.com> References: <20230515195709.63843-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 Received-SPF: pass client-ip=170.10.133.124; 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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-ppc@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-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-ppc-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Juan Quintela Reviewed-by: Cédric Le Goater Reviewed-by: Leonardo Bras --- migration/migration-stats.h | 8 +++++++- migration/migration-stats.c | 7 +++++-- migration/migration.c | 2 +- 3 files changed, 13 insertions(+), 4 deletions(-) diff --git a/migration/migration-stats.h b/migration/migration-stats.h index 91fda378d3..f1465c2ebe 100644 --- a/migration/migration-stats.h +++ b/migration/migration-stats.h @@ -81,6 +81,10 @@ typedef struct { * Number of bytes sent during precopy stage. */ Stat64 precopy_bytes; + /* + * Amount of transferred data at the start of current cycle. + */ + Stat64 rate_limit_start; /* * Maximum amount of data we can send in a cycle. */ @@ -136,8 +140,10 @@ uint64_t migration_rate_get(void); * migration_rate_reset: Reset the rate limit counter. * * This is called when we know we start a new transfer cycle. + * + * @f: QEMUFile used for main migration channel */ -void migration_rate_reset(void); +void migration_rate_reset(QEMUFile *f); /** * migration_rate_set: Set the maximum amount that can be transferred. diff --git a/migration/migration-stats.c b/migration/migration-stats.c index 301392d208..da2bb69a15 100644 --- a/migration/migration-stats.c +++ b/migration/migration-stats.c @@ -31,7 +31,9 @@ bool migration_rate_exceeded(QEMUFile *f) return true; } - uint64_t rate_limit_used = stat64_get(&mig_stats.rate_limit_used); + uint64_t rate_limit_start = stat64_get(&mig_stats.rate_limit_start); + uint64_t rate_limit_current = migration_transferred_bytes(f); + uint64_t rate_limit_used = rate_limit_current - rate_limit_start; uint64_t rate_limit_max = stat64_get(&mig_stats.rate_limit_max); if (rate_limit_max == RATE_LIMIT_MAX) { @@ -58,9 +60,10 @@ void migration_rate_set(uint64_t limit) stat64_set(&mig_stats.rate_limit_max, limit / XFER_LIMIT_RATIO); } -void migration_rate_reset(void) +void migration_rate_reset(QEMUFile *f) { stat64_set(&mig_stats.rate_limit_used, 0); + stat64_set(&mig_stats.rate_limit_start, migration_transferred_bytes(f)); } void migration_rate_account(uint64_t len) diff --git a/migration/migration.c b/migration/migration.c index 39ff538046..e48dd593ed 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2691,7 +2691,7 @@ static void migration_update_counters(MigrationState *s, stat64_get(&mig_stats.dirty_bytes_last_sync) / bandwidth; } - migration_rate_reset(); + migration_rate_reset(s->to_dst_file); update_iteration_initial_status(s);