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Diffstat (limited to 'migration')
-rw-r--r--migration/migration.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/migration/migration.c b/migration/migration.c
index d3e6da9bfe..264f3ce84e 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -2704,9 +2704,15 @@ static MigThrError migration_detect_error(MigrationState *s)
}
}
+/* How many bytes have we transferred since the beggining of the migration */
+static uint64_t migration_total_bytes(MigrationState *s)
+{
+ return qemu_ftell(s->to_dst_file);
+}
+
static void migration_calculate_complete(MigrationState *s)
{
- uint64_t bytes = qemu_ftell(s->to_dst_file);
+ uint64_t bytes = migration_total_bytes(s);
int64_t end_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
int64_t transfer_time;
@@ -2729,13 +2735,15 @@ static void migration_update_counters(MigrationState *s,
int64_t current_time)
{
uint64_t transferred, time_spent;
+ uint64_t current_bytes; /* bytes transferred since the beginning */
double bandwidth;
if (current_time < s->iteration_start_time + BUFFER_DELAY) {
return;
}
- transferred = qemu_ftell(s->to_dst_file) - s->iteration_initial_bytes;
+ current_bytes = migration_total_bytes(s);
+ transferred = current_bytes - s->iteration_initial_bytes;
time_spent = current_time - s->iteration_start_time;
bandwidth = (double)transferred / time_spent;
s->threshold_size = bandwidth * s->parameters.downtime_limit;
@@ -2754,7 +2762,7 @@ static void migration_update_counters(MigrationState *s,
qemu_file_reset_rate_limit(s->to_dst_file);
s->iteration_start_time = current_time;
- s->iteration_initial_bytes = qemu_ftell(s->to_dst_file);
+ s->iteration_initial_bytes = current_bytes;
trace_migrate_transferred(transferred, time_spent,
bandwidth, s->threshold_size);