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Sun, 05 Apr 2026 08:26:34 -0700 (PDT) From: Trieu Huynh X-Google-Original-From: Trieu Huynh To: qemu-devel@nongnu.org Cc: Trieu Huynh , Peter Xu , Fabiano Rosas Subject: [PATCH 1/2] migration: track timing and received pages in MigrationIncomingState Date: Sun, 5 Apr 2026 22:26:07 +0700 Message-ID: <20260405152612.93027-2-viking4@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260405152612.93027-1-viking4@gmail.com> References: <20260405152612.93027-1-viking4@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2607:f8b0:4864:20::42c; envelope-from=vikingtc4@gmail.com; helo=mail-pf1-x42c.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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: qemu development 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 @gmail.com) X-ZM-MESSAGEID: 1775402823397158500 Content-Type: text/plain; charset="utf-8" From: Trieu Huynh Add start_time, total_time, received_normal_pages, received_zero_pages, and received_xbzrle_pages to MigrationIncomingState. start_time is recorded when the incoming state transitions to ACTIVE; total_time is recorded when it transitions to COMPLETED. The page counters are incremented in ram_load_precopy() as each page type is received from the source. These fields will be used by a subsequent patch to populate fill_destination_migration_info() for the migration COMPLETED case. Signed-off-by: Trieu Huynh --- migration/migration.c | 2 ++ migration/migration.h | 17 +++++++++++++++++ migration/ram.c | 3 +++ 3 files changed, 22 insertions(+) diff --git a/migration/migration.c b/migration/migration.c index 5c9aaa6e58..17c9a8b344 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -726,6 +726,7 @@ static void process_incoming_migration_bh(void *opaque) */ migrate_set_state(&mis->state, MIGRATION_STATUS_ACTIVE, MIGRATION_STATUS_COMPLETED); + mis->total_time =3D qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - mis->star= t_time; migration_incoming_state_destroy(); } =20 @@ -758,6 +759,7 @@ process_incoming_migration_co(void *opaque) migrate_set_state(&mis->state, MIGRATION_STATUS_SETUP, MIGRATION_STATUS_ACTIVE); =20 + mis->start_time =3D qemu_clock_get_ms(QEMU_CLOCK_REALTIME); mis->loadvm_co =3D qemu_coroutine_self(); ret =3D qemu_loadvm_state(mis->from_src_file, &local_err); mis->loadvm_co =3D NULL; diff --git a/migration/migration.h b/migration/migration.h index b6888daced..cd51ae452c 100644 --- a/migration/migration.h +++ b/migration/migration.h @@ -176,6 +176,23 @@ struct MigrationIncomingState { /* PostCopyFD's for external userfaultfds & handlers of shared memory = */ GArray *postcopy_remote_fds; =20 + /* + * Timestamps for reporting migration duration via query-migrate on the + * destination. start_time is recorded when the state moves to ACTIVE; + * total_time is recorded when it moves to COMPLETED. + */ + int64_t start_time; + int64_t total_time; + + /* + * Page counters for reporting RAM statistics via query-migrate on the + * destination. Incremented in ram_load_precopy() as each page type + * is received. + */ + uint64_t received_normal_pages; + uint64_t received_zero_pages; + uint64_t received_xbzrle_pages; + MigrationStatus state; =20 /* diff --git a/migration/ram.c b/migration/ram.c index 979751f61b..6646e5daad 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -4417,10 +4417,12 @@ static int ram_load_precopy(QEMUFile *f) break; } ram_handle_zero(host, TARGET_PAGE_SIZE); + mis->received_zero_pages++; break; =20 case RAM_SAVE_FLAG_PAGE: qemu_get_buffer(f, host, TARGET_PAGE_SIZE); + mis->received_normal_pages++; break; =20 case RAM_SAVE_FLAG_XBZRLE: @@ -4430,6 +4432,7 @@ static int ram_load_precopy(QEMUFile *f) ret =3D -EINVAL; break; } + mis->received_xbzrle_pages++; break; case RAM_SAVE_FLAG_MULTIFD_FLUSH: multifd_recv_sync_main(); --=20 2.43.0