Displaying 5 results from an estimated 5 matches for "memory_global_dirty_log_start".
2016 Mar 03
2
[RFC qemu 4/4] migration: filter out guest's free pages in ram bulk stage
...ew(ram_bitmap_pages);
+ }
if (migrate_postcopy_ram()) {
migration_bitmap_rcu->unsentmap = bitmap_new(ram_bitmap_pages);
@@ -1945,6 +1971,20 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
DIRTY_MEMORY_MIGRATION);
}
memory_global_dirty_log_start();
+
+ if (balloon_free_pages_support() &&
+ balloon_get_free_pages(migration_bitmap_rcu->free_pages_bmap,
+ &free_pages_count) == 0) {
+ qemu_mutex_unlock_iothread();
+ while (balloon_get_free_pages(migration_bitmap_rcu->free_...
2016 Mar 03
0
[RFC qemu 4/4] migration: filter out guest's free pages in ram bulk stage
...c | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
> 1 file changed, 46 insertions(+), 6 deletions(-)
>
> @@ -1945,6 +1971,20 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
> DIRTY_MEMORY_MIGRATION);
> }
> memory_global_dirty_log_start();
> +
> + if (balloon_free_pages_support() &&
> + balloon_get_free_pages(migration_bitmap_rcu->free_pages_bmap,
> + &free_pages_count) == 0) {
> + qemu_mutex_unlock_iothread();
> + while (balloon_get_free_pages(...
2016 Mar 03
0
[Qemu-devel] [RFC qemu 4/4] migration: filter out guest's free pages in ram bulk stage
...n/ram.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
> 1 file changed, 46 insertions(+), 6 deletions(-)
> @@ -1945,6 +1971,20 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
> DIRTY_MEMORY_MIGRATION);
> }
> memory_global_dirty_log_start();
> +
> + if (balloon_free_pages_support() &&
> + balloon_get_free_pages(migration_bitmap_rcu->free_pages_bmap,
> + &free_pages_count) == 0) {
> + qemu_mutex_unlock_iothread();
> + while (balloon_get_free_pages(...
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the
guest's RAM pages as dirtied in the ram bulk stage, all these pages
will be processed and that takes quit a lot of CPU cycles.
>From guest's point of view, it doesn't care about the content in free
pages. We can make use of this fact and skip processing the free
pages in the ram bulk stage, it can save a lot CPU cycles
2016 Mar 03
16
[RFC qemu 0/4] A PV solution for live migration optimization
The current QEMU live migration implementation mark the all the
guest's RAM pages as dirtied in the ram bulk stage, all these pages
will be processed and that takes quit a lot of CPU cycles.
>From guest's point of view, it doesn't care about the content in free
pages. We can make use of this fact and skip processing the free
pages in the ram bulk stage, it can save a lot CPU cycles