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[Qemu-devel] [PATCH COLO-Frame v13 20/39] COLO: synchronize PVM's state
From: |
zhanghailiang |
Subject: |
[Qemu-devel] [PATCH COLO-Frame v13 20/39] COLO: synchronize PVM's state to SVM periodically |
Date: |
Tue, 29 Dec 2015 15:09:16 +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 review comment)
---
migration/colo.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 11d2b51..a00bc10 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -11,6 +11,7 @@
*/
#include <unistd.h>
+#include "qemu/timer.h"
#include "sysemu/sysemu.h"
#include "migration/colo.h"
#include "trace.h"
@@ -230,6 +231,7 @@ 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;
@@ -261,11 +263,21 @@ 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);
+ }
/* start a colo checkpoint */
ret = colo_do_checkpoint_transaction(s, buffer);
if (ret < 0) {
goto out;
}
+ checkpoint_time = qemu_clock_get_ms(QEMU_CLOCK_HOST);
}
out:
--
1.8.3.1
- [Qemu-devel] [PATCH COLO-Frame v13 10/39] COLO: Implement colo checkpoint protocol, (continued)
- [Qemu-devel] [PATCH COLO-Frame v13 10/39] COLO: Implement colo checkpoint protocol, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 07/39] migration: Integrate COLO checkpoint process into loadvm, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 16/39] ram/COLO: Record the dirty pages that SVM received, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 08/39] migration: Rename the'file' member of MigrationState, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 19/39] COLO: Add checkpoint-delay parameter for migrate-set-parameters, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 22/39] COLO failover: Introduce state to record failover process, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 15/39] COLO: Load PVM's dirty pages into SVM's RAM cache temporarily, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 24/39] COLO: Implement failover work for Secondary VM, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 18/39] COLO: Flush PVM's cached RAM into SVM's memory, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 02/39] migration: Introduce capability 'x-colo' to migration, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 20/39] COLO: synchronize PVM's state to SVM periodically,
zhanghailiang <=
- [Qemu-devel] [PATCH COLO-Frame v13 27/39] COLO failover: Don't do failover during loading VM's state, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 32/39] COLO: Separate the process of saving/loading ram and device state, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 23/39] COLO: Implement failover work for Primary VM, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 11/39] COLO: Add a new RunState RUN_STATE_COLO, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 09/39] COLO/migration: Create a new communication path from destination to source, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 33/39] COLO: Split qemu_savevm_state_begin out of checkpoint process, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 14/39] ram: Split host_from_stream_offset() into two helper functions, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 17/39] COLO: Load VMState into qsb before restore it, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 30/39] savevm: Split load vm state function qemu_loadvm_state, zhanghailiang, 2015/12/29
- [Qemu-devel] [PATCH COLO-Frame v13 39/39] COLO: Add block replication into colo process, zhanghailiang, 2015/12/29