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[Qemu-devel] [PATCH] net/colo-compare.c: Add no-need-checkpoint period t
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH] net/colo-compare.c: Add no-need-checkpoint period to optimize performance |
Date: |
Thu, 8 Jun 2017 11:47:52 +0800 |
If colo-compare find out the first different packet that means
the following packet almost is different. we needn't do a lot
of checkpoint in one second, so we set the no-need-checkpoint
period, default just set 3 second.
Signed-off-by: Zhang Chen <address@hidden>
---
net/colo-compare.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/net/colo-compare.c b/net/colo-compare.c
index 6d500e1..8fb1c9c 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -39,6 +39,8 @@
/* TODO: Should be configurable */
#define REGULAR_PACKET_CHECK_MS 3000
+/* TODO: Should be configurable */
+#define CHECKPOINT_MIN_TIME 3000
/*
+ CompareState ++
@@ -455,6 +457,7 @@ static void colo_compare_connection(void *opaque, void
*user_data)
Packet *pkt = NULL;
GList *result = NULL;
int ret;
+ static int64_t checkpoint_time_ms;
while (!g_queue_is_empty(&conn->primary_list) &&
!g_queue_is_empty(&conn->secondary_list)) {
@@ -494,7 +497,11 @@ static void colo_compare_connection(void *opaque, void
*user_data)
*/
trace_colo_compare_main("packet different");
g_queue_push_tail(&conn->primary_list, pkt);
- /* TODO: colo_notify_checkpoint();*/
+
+ if (pkt->creation_ms - checkpoint_time_ms > CHECKPOINT_MIN_TIME) {
+ /* TODO: colo_notify_checkpoint();*/
+ checkpoint_time_ms = pkt->creation_ms;
+ }
break;
}
}
--
2.7.4
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