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-rw-r--r--qemu-options.hx5
1 files changed, 3 insertions, 2 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index d2c1e95bcf..310885c60e 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4695,7 +4695,7 @@ SRST
stored. The file format is libpcap, so it can be analyzed with
tools such as tcpdump or Wireshark.
- ``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}``
+ ``-object colo-compare,id=id,primary_in=chardevid,secondary_in=chardevid,outdev=chardevid,iothread=id[,vnet_hdr_support][,notify_dev=id][,compare_timeout=@var{ms}][,expired_scan_cycle=@var{ms}][,max_queue_size=@var{size}]``
Colo-compare gets packet from primary\_inchardevid and
secondary\_inchardevid, than compare primary packet with
secondary packet. If the packets are same, we will output
@@ -4707,7 +4707,8 @@ SRST
vnet\_hdr\_len. Then compare\_timeout=@var{ms} determines the
maximum delay colo-compare wait for the packet.
The expired\_scan\_cycle=@var{ms} to set the period of scanning
- expired primary node network packets.
+ expired primary node network packets. The max\_queue\_size=@var{size}
+ is to set the max compare queue size depend on user environment.
If you want to use Xen COLO, will need the notify\_dev to
notify Xen colo-frame to do checkpoint.