diff mbox series

[PULL,18/27] migration: split use of MigrationState.total_time

Message ID 20180115115309.23982-19-quintela@redhat.com
State New
Headers show
Series Migration pull | expand

Commit Message

Juan Quintela Jan. 15, 2018, 11:53 a.m. UTC 
From: Peter Xu <peterx@redhat.com>

It was used either to:

1. store initial timestamp of migration start, and
2. store total time used by last migration

Let's provide two parameters for each of them.  Mix use of the two is
slightly misleading.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 migration/migration.c | 7 ++++---
 migration/migration.h | 3 +++
 2 files changed, 7 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/migration/migration.c b/migration/migration.c
index 0b513c2020..23f6e5092c 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -619,7 +619,7 @@  static void fill_source_migration_info(MigrationInfo *info)
         info->has_status = true;
         info->has_total_time = true;
         info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME)
-            - s->total_time;
+            - s->start_time;
         info->has_expected_downtime = true;
         info->expected_downtime = s->expected_downtime;
         info->has_setup_time = true;
@@ -1300,7 +1300,8 @@  MigrationState *migrate_init(void)
 
     migrate_set_state(&s->state, MIGRATION_STATUS_NONE, MIGRATION_STATUS_SETUP);
 
-    s->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
+    s->start_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
+    s->total_time = 0;
     return s;
 }
 
@@ -2332,7 +2333,7 @@  static void *migration_thread(void *opaque)
     qemu_mutex_lock_iothread();
     if (s->state == MIGRATION_STATUS_COMPLETED) {
         uint64_t transferred_bytes = qemu_ftell(s->to_dst_file);
-        s->total_time = end_time - s->total_time;
+        s->total_time = end_time - s->start_time;
         if (!entered_postcopy) {
             s->downtime = end_time - start_time;
         }
diff --git a/migration/migration.h b/migration/migration.h
index d84bc550b1..d1132b1cf7 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -115,6 +115,9 @@  struct MigrationState
     } rp_state;
 
     double mbps;
+    /* Timestamp when recent migration starts (ms) */
+    int64_t start_time;
+    /* Total time used by latest migration (ms) */
     int64_t total_time;
     int64_t downtime;
     int64_t expected_downtime;