diff options
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 962a5ebaa6..9e48e13b26 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4615,7 +4615,7 @@ 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]`` + ``-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}]`` 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 @@ -4624,8 +4624,10 @@ SRST outdevchardevid. In order to improve efficiency, we need to put the task of comparison in another thread. If it has the vnet\_hdr\_support flag, colo compare will send/recv packet with - vnet\_hdr\_len. If you want to use Xen COLO, will need the - notify\_dev to notify Xen colo-frame to do checkpoint. + vnet\_hdr\_len. Then compare\_timeout=@var{ms} determines the + maximum delay colo-compare wait for the packet. + If you want to use Xen COLO, will need the notify\_dev to + notify Xen colo-frame to do checkpoint. we must use it with the help of filter-mirror and filter-redirector. |