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| author | Juan Quintela <quintela@redhat.com> | 2012-06-28 19:51:17 +0200 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2012-07-20 08:19:27 +0200 |
| commit | 00d94f3f7648bc3d7126bc6b84d42e22194d9230 (patch) | |
| tree | 32055b3ca57bf3ff9605362b80e562fa403a1398 /arch_init.c | |
| parent | b81e712d252cf41a0825f5abad0ce2f4746864f1 (diff) | |
| download | qemu-00d94f3f7648bc3d7126bc6b84d42e22194d9230.zip qemu-00d94f3f7648bc3d7126bc6b84d42e22194d9230.tar.gz qemu-00d94f3f7648bc3d7126bc6b84d42e22194d9230.tar.bz2 | |
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: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'arch_init.c')
| -rw-r--r-- | arch_init.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch_init.c b/arch_init.c index 3c38a52..b08c615 100644 --- a/arch_init.c +++ b/arch_init.c @@ -348,8 +348,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) int i; uint64_t expected_time; - memory_global_sync_dirty_bitmap(get_system_memory()); - 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()) { + memory_global_sync_dirty_bitmap(get_system_memory()); + 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) |