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[Qemu-devel] [PATCH COLO-Frame v17 15/34] COLO: Synchronize PVM's state
From: |
zhanghailiang |
Subject: |
[Qemu-devel] [PATCH COLO-Frame v17 15/34] COLO: Synchronize PVM's state to SVM periodically |
Date: |
Fri, 3 Jun 2016 15:52:27 +0800 |
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 396cdcf..47718e7 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 "io/channel-buffer.h"
@@ -226,6 +227,7 @@ static void colo_process_checkpoint(MigrationState *s)
{
QIOChannelBuffer *bioc;
QEMUFile *fb = NULL;
+ int64_t current_time, checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST);
Error *local_err = NULL;
int ret;
@@ -254,10 +256,20 @@ 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.x_checkpoint_delay) {
+ int64_t delay_ms;
+
+ delay_ms = s->parameters.x_checkpoint_delay -
+ (current_time - checkpoint_time);
+ g_usleep(delay_ms * 1000);
+ }
ret = colo_do_checkpoint_transaction(s, bioc, fb);
if (ret < 0) {
goto out;
}
+ checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST);
}
out:
--
1.8.3.1
- [Qemu-devel] [PATCH COLO-Frame v17 00/34] COarse-grain LOck-stepping(COLO) Virtual Machines for Non-stop Service (FT), zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 01/34] configure: Add parameter for configure to enable/disable COLO support, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 06/34] COLO/migration: Create a new communication path from destination to source, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 04/34] migration: Integrate COLO checkpoint process into migration, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 02/34] migration: Introduce capability 'x-colo' to migration, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 07/34] COLO: Implement COLO checkpoint protocol, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 09/34] COLO: Save PVM state to secondary side when do checkpoint, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 13/34] COLO: Flush PVM's cached RAM into SVM's memory, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 12/34] COLO: Load VMState into buffer before restore it, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 15/34] COLO: Synchronize PVM's state to SVM periodically,
zhanghailiang <=
- [Qemu-devel] [PATCH COLO-Frame v17 14/34] COLO: Add checkpoint-delay parameter for migrate-set-parameters, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 08/34] COLO: Add a new RunState RUN_STATE_COLO, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 27/34] migration/savevm: Export two helper functions for savevm process, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 10/34] COLO: Load PVM's dirty pages into SVM's RAM cache temporarily, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 21/34] COLO failover: Shutdown related socket fd when do failover, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 03/34] COLO: migrate colo related info to secondary node, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 11/34] ram/COLO: Record the dirty pages that SVM received, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 18/34] COLO: Implement failover work for Primary VM, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 22/34] COLO failover: Don't do failover during loading VM's state, zhanghailiang, 2016/06/03
- [Qemu-devel] [PATCH COLO-Frame v17 29/34] COLO: Split qemu_savevm_state_begin out of checkpoint process, zhanghailiang, 2016/06/03