diff options
| author | Peter Lieven <pl@kamp.de> | 2017-09-26 12:33:16 +0200 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2017-09-27 11:27:14 +0100 |
| commit | 9ac78b6171bec47083a9b6ce88dc1f114caea2f9 (patch) | |
| tree | 5a7329bb5f0bd8c1f1fa9a02a960326dd992b44e /migration/block.h | |
| parent | 31bc1d8481af414cfa2857f905e40f7d8e6d5b2e (diff) | |
migration: disable auto-converge during bulk block migration
auto-converge and block migration currently do not play well together.
During block migration the auto-converge logic detects that ram
migration makes no progress and thus throttles down the vm until
it nearly stalls completely. Avoid this by disabling the throttling
logic during the bulk phase of the block migration.
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1506421996-12513-1-git-send-email-pl@kamp.de>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'migration/block.h')
| -rw-r--r-- | migration/block.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/migration/block.h b/migration/block.h index 22ebe94259..3178609dbd 100644 --- a/migration/block.h +++ b/migration/block.h @@ -16,6 +16,7 @@ #ifdef CONFIG_LIVE_BLOCK_MIGRATION int blk_mig_active(void); +int blk_mig_bulk_active(void); uint64_t blk_mig_bytes_transferred(void); uint64_t blk_mig_bytes_remaining(void); uint64_t blk_mig_bytes_total(void); @@ -25,6 +26,12 @@ static inline int blk_mig_active(void) { return false; } + +static inline int blk_mig_bulk_active(void) +{ + return false; +} + static inline uint64_t blk_mig_bytes_transferred(void) { return 0; |