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colo-compare: introduce packet comparison thread

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If primary packet is same with secondary packet,
we will send primary packet and drop secondary
packet, otherwise notify COLO frame to do checkpoint.
If primary packet comes but secondary packet does not,
after REGULAR_PACKET_CHECK_MS milliseconds we set
the primary packet as old_packet,then do a checkpoint.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Zhang Chen 2016-09-27 10:22:30 +08:00 • committed by Jason Wang
parent b6540d403d
commit 0682e15b19
4 changed files with 239 additions and 0 deletions
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2
trace-events
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@ -144,6 +144,8 @@ colo_proxy_main(const char *chr) ": %s"
# net/colo-compare.c
colo_compare_main(const char *chr) ": %s"
colo_compare_ip_info(int psize, const char *sta, const char *stb, int ssize, const char *stc, const char *std) "ppkt size = %d, ip_src = %s, ip_dst = %s, spkt size = %d, ip_src = %s, ip_dst = %s"
colo_old_packet_check_found(int64_t old_time) "%" PRId64
### Guest events, keep at bottom