Commit 00d94f3f authored by Juan Quintela's avatar Juan Quintela

ram: iterate phase

We only need to synchronize the bitmap when the number of dirty pages is low.
Not every time that we call the function.
Signed-off-by: default avatarJuan Quintela <>
parent b81e712d
......@@ -348,8 +348,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
int i;
uint64_t expected_time;
bytes_transferred_last = bytes_transferred;
bwidth = qemu_get_clock_ns(rt_clock);
......@@ -398,7 +396,13 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
expected_time, migrate_max_downtime());
return expected_time <= migrate_max_downtime();
if (expected_time <= migrate_max_downtime()) {
expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
return expected_time <= migrate_max_downtime();
return 0;
static int ram_save_complete(QEMUFile *f, void *opaque)
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