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bh=EMtmC+W/5UN9EzDVPNHRf6HynmGhkOxnhqiG4FMRsxs=; b=cfxwjVMy1Qw2q8aaIX3bAdE7jQ1SFDRq/CfgY4dvTdWbPoMorh7LlFCvVNKwQhEXWTFHzo lR8/PLpZ+Q1y5a0W2zDPqYJ6MsWF3rUoSZYW0u53RBfcOb4cyE/mA2UDxOQJiQBNLu12gT sFZcxFqy3tGYbodT6n0uSgMC9n5pBPY= X-MC-Unique: RDdp8HBdM7mQ0ra5kVXhkQ-1 From: Juan Quintela To: qemu-devel@nongnu.org Cc: "Dr. David Alan Gilbert" , Juan Quintela , David Edmondson Subject: [PATCH v2 3/3] migration: Make multifd_bytes atomic Date: Thu, 2 Mar 2023 17:21:38 +0100 Message-Id: <20230302162138.10076-4-quintela@redhat.com> In-Reply-To: <20230302162138.10076-1-quintela@redhat.com> References: <20230302162138.10076-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1677774151426100001 Content-Type: text/plain; charset="utf-8" In the spirit of: commit 394d323bc3451e4d07f13341cb8817fac8dfbadd Author: Peter Xu Date: Tue Oct 11 17:55:51 2022 -0400 migration: Use atomic ops properly for page accountings Reviewed-by: David Edmondson Signed-off-by: Juan Quintela --- migration/ram.h | 2 +- migration/migration.c | 4 ++-- migration/multifd.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/migration/ram.h b/migration/ram.h index 64fb92ccd4..6a3498c732 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -45,11 +45,11 @@ typedef struct { Stat64 duplicate; Stat64 normal; Stat64 postcopy_bytes; + Stat64 multifd_bytes; int64_t remaining; int64_t dirty_pages_rate; int64_t dirty_sync_count; int64_t postcopy_requests; - uint64_t multifd_bytes; uint64_t precopy_bytes; uint64_t downtime_bytes; uint64_t dirty_sync_missed_zero_copy; diff --git a/migration/migration.c b/migration/migration.c index 923f4762f4..ca52c8aab3 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1153,7 +1153,7 @@ static void populate_ram_info(MigrationInfo *info, Mi= grationState *s) ram_counters.dirty_sync_missed_zero_copy; info->ram->postcopy_requests =3D ram_counters.postcopy_requests; info->ram->page_size =3D page_size; - info->ram->multifd_bytes =3D ram_counters.multifd_bytes; + info->ram->multifd_bytes =3D stat64_get(&ram_counters.multifd_bytes); info->ram->pages_per_second =3D s->pages_per_second; info->ram->precopy_bytes =3D ram_counters.precopy_bytes; info->ram->downtime_bytes =3D ram_counters.downtime_bytes; @@ -3774,7 +3774,7 @@ static MigThrError migration_detect_error(MigrationSt= ate *s) static uint64_t migration_total_bytes(MigrationState *s) { return qemu_file_total_transferred(s->to_dst_file) + - ram_counters.multifd_bytes; + stat64_get(&ram_counters.multifd_bytes); } =20 static void migration_calculate_complete(MigrationState *s) diff --git a/migration/multifd.c b/migration/multifd.c index f558169e37..91552d33bf 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -432,9 +432,9 @@ static int multifd_send_pages(QEMUFile *f) p->pages =3D pages; transferred =3D ((uint64_t) pages->num) * p->page_size + p->packet_len; qemu_file_acct_rate_limit(f, transferred); - ram_counters.multifd_bytes +=3D transferred; qemu_mutex_unlock(&p->mutex); stat64_add(&ram_counters.transferred, transferred); + stat64_add(&ram_counters.multifd_bytes, transferred); qemu_sem_post(&p->sem); =20 return 1; @@ -627,9 +627,9 @@ int multifd_send_sync_main(QEMUFile *f) p->flags |=3D MULTIFD_FLAG_SYNC; p->pending_job++; qemu_file_acct_rate_limit(f, p->packet_len); - ram_counters.multifd_bytes +=3D p->packet_len; qemu_mutex_unlock(&p->mutex); stat64_add(&ram_counters.transferred, p->packet_len); + stat64_add(&ram_counters.multifd_bytes, p->packet_len); qemu_sem_post(&p->sem); } for (i =3D 0; i < migrate_multifd_channels(); i++) { --=20 2.39.2