From a694ee343d13159d214823294bbda08e4bdac685 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 26 Jan 2015 12:12:27 +0100 Subject: [PATCH] migration: do floating-point division Dividing integer expressions transferred_bytes and time_spent, and then converting the integer quotient to type double. Any remainder, or fractional part of the quotient, is ignored. Fix this. Signed-off-by: Paolo Bonzini Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela --- migration/migration.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/migration/migration.c b/migration/migration.c index 1a42aee412..adc6b6f1c9 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1674,7 +1674,7 @@ static void *migration_thread(void *opaque) if (current_time >= initial_time + BUFFER_DELAY) { uint64_t transferred_bytes = qemu_ftell(s->file) - initial_bytes; uint64_t time_spent = current_time - initial_time; - double bandwidth = transferred_bytes / time_spent; + double bandwidth = (double)transferred_bytes / time_spent; max_size = bandwidth * migrate_max_downtime() / 1000000; s->mbps = time_spent ? (((double) transferred_bytes * 8.0) / -- 2.11.0