Do checkpoint periodically, the default interval is 200ms.
Signed-off-by: zhanghailiang <address@hidden>
Signed-off-by: Li Zhijian <address@hidden>
Reviewed-by: Dr. David Alan Gilbert <address@hidden>
---
v12:
- Add Reviewed-by tag
v11:
- Fix wrong sleep time for checkpoint period. (Dave's comment)
---
migration/colo.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 4dae069..4e3b39f 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -11,6 +11,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/timer.h"
#include "sysemu/sysemu.h"
#include "migration/colo.h"
#include "trace.h"
@@ -231,6 +232,7 @@ out:
static void colo_process_checkpoint(MigrationState *s)
{
QEMUSizedBuffer *buffer = NULL;
+ int64_t current_time, checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST);
Error *local_err = NULL;
int ret;
@@ -262,11 +264,21 @@ static void colo_process_checkpoint(MigrationState *s)
trace_colo_vm_state_change("stop", "run");
while (s->state == MIGRATION_STATUS_COLO) {
+ current_time = qemu_clock_get_ms(QEMU_CLOCK_HOST);
+ if (current_time - checkpoint_time <
+ s->parameters[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY]) {
+ int64_t delay_ms;
+
+ delay_ms = s->parameters[MIGRATION_PARAMETER_X_CHECKPOINT_DELAY] -
+ (current_time - checkpoint_time);
+ g_usleep(delay_ms * 1000);