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authorZhang Chen <chen.zhang@intel.com>2019-04-26 17:07:30 +0800
committerDr. David Alan Gilbert <dgilbert@redhat.com>2019-05-14 17:33:35 +0100
commit5aede7f4c71b06d5691d702f05f2c8d995e35f3c (patch)
tree35fc5796cc99b27c8b209ff893563cd57750f572 /qemu-options.hx
parent9c16abcb9264e62e4c24875a2208fba90032b789 (diff)
qemu-option.hx: Update missed parameter for colo-compare
We missed the iothread related args in this file. This patch is used to fix this issue. Signed-off-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20190426090730.2691-4-chen.zhang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx9
1 files changed, 6 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 51802cbb26..3faa935929 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4425,13 +4425,15 @@ Dump the network traffic on netdev @var{dev} to the file specified by
The file format is libpcap, so it can be analyzed with tools such as tcpdump
or Wireshark.
-@item -object colo-compare,id=@var{id},primary_in=@var{chardevid},secondary_in=@var{chardevid},outdev=@var{chardevid}[,vnet_hdr_support]
+@item -object colo-compare,id=@var{id},primary_in=@var{chardevid},secondary_in=@var{chardevid},outdev=@var{chardevid},iothread=@var{id}[,vnet_hdr_support]
Colo-compare gets packet from primary_in@var{chardevid} and secondary_in@var{chardevid}, than compare primary packet with
secondary packet. If the packets are same, we will output primary
packet to outdev@var{chardevid}, else we will notify colo-frame
do checkpoint and send primary packet to outdev@var{chardevid}.
-if it has the vnet_hdr_support flag, colo compare will send/recv packet with vnet_hdr_len.
+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.
we must use it with the help of filter-mirror and filter-redirector.
@@ -4446,10 +4448,11 @@ primary:
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
+-object iothread,id=iothread1
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
--object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0
+-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0,iothread=iothread1
secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown