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migration: calculate expected_downtime

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We removed the calculation in commit e4ed1541ac

Now we add it back.  We need to create dirty_bytes_rate because we
can't include cpu-all.h from migration.c, and there is no other way to
include TARGET_PAGE_SIZE.

Signed-off-by: Juan Quintela <quintela@redhat.com>


Reviewed-by: Orit Wasserman <owasserm@redhat.com>
This commit is contained in:
Juan Quintela 2013-02-01 13:22:37 +01:00
parent 7161082c8d
commit 90f8ae724a
3 changed files with 7 additions and 0 deletions
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arch_init.c
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@ -414,6 +414,7 @@ static void migration_bitmap_sync(void)
if (end_time > start_time + 1000) {
s->dirty_pages_rate = num_dirty_pages_period * 1000
/ (end_time - start_time);
s->dirty_bytes_rate = s->dirty_pages_rate * TARGET_PAGE_SIZE;
start_time = end_time;
num_dirty_pages_period = 0;
}