diff options
| author | Rao, Lei <lei.rao@intel.com> | 2021-11-09 11:04:54 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2021-11-09 08:48:36 +0100 |
| commit | 91fe9a8dbd449a2f333aefb82ec8adb1f6424408 (patch) | |
| tree | ee2a41d79e06642a4773cba5719b47e6e83f9e37 /migration | |
| parent | a6a83cef9c581d210fd965fc7ac17e388db840dc (diff) | |
| download | qemu-91fe9a8dbd449a2f333aefb82ec8adb1f6424408.zip | |
Reset the auto-converge counter at every checkpoint.
if we don't reset the auto-converge counter,
it will continue to run with COLO running,
and eventually the system will hang due to the
CPU throttle reaching DEFAULT_MIGRATE_MAX_CPU_THROTTLE.
Signed-off-by: Lei Rao <lei.rao@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Lukas Straub <lukasstraub2@web.de>
Tested-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/colo.c | 4 | ||||
| -rw-r--r-- | migration/ram.c | 9 | ||||
| -rw-r--r-- | migration/ram.h | 1 |
3 files changed, 14 insertions, 0 deletions
diff --git a/migration/colo.c b/migration/colo.c index e3b1f136f4..2415325262 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -459,6 +459,10 @@ static int colo_do_checkpoint_transaction(MigrationState *s, if (ret < 0) { goto out; } + + if (migrate_auto_converge()) { + mig_throttle_counter_reset(); + } /* * Only save VM's live state, which not including device state. * TODO: We may need a timeout mechanism to prevent COLO process diff --git a/migration/ram.c b/migration/ram.c index f48cf4b0a5..863035d235 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -641,6 +641,15 @@ static void mig_throttle_guest_down(uint64_t bytes_dirty_period, } } +void mig_throttle_counter_reset(void) +{ + RAMState *rs = ram_state; + + rs->time_last_bitmap_sync = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + rs->num_dirty_pages_period = 0; + rs->bytes_xfer_prev = ram_counters.transferred; +} + /** * xbzrle_cache_zero_page: insert a zero page in the XBZRLE cache * diff --git a/migration/ram.h b/migration/ram.h index dda1988f3d..c515396a9a 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -50,6 +50,7 @@ bool ramblock_is_ignored(RAMBlock *block); int xbzrle_cache_resize(uint64_t new_size, Error **errp); uint64_t ram_bytes_remaining(void); uint64_t ram_bytes_total(void); +void mig_throttle_counter_reset(void); uint64_t ram_pagesize_summary(void); int ram_save_queue_pages(const char *rbname, ram_addr_t start, ram_addr_t len); |