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From Nux! <...@li.nux.ro>
Subject Re: Performance degrades when I use the StaticNAT in Virtual Router. Is there a way to speed up?
Date Mon, 23 Jun 2014 16:46:21 GMT
Depending on your circumstances, you could move to an Advanced Zone with Security Groups, this
way traffic will bypass the Virtual Router and go directly to the VMs.

HTH
Lucian


--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro


----- Original Message -----
From: "giraffeg forestg" <giraffeforestg@gmail.com>
To: users@cloudstack.apache.org
Sent: Monday, 23 June, 2014 4:51:49 PM
Subject: Performance degrades when I use the StaticNAT in Virtual Router. Is there a way to
speed up?

Hi All

Performance degrades when I use the StaticNAT in Virtual Router. Is there a
way to speed up?

Environment:
 Apache CloudStack 4.3.0
 SystemVM:systemvm64template-2014-01-14-master-xen.vhd
 HyperVisor:XenServer 6.2SP1
 Network:1Gbps (Catalyst3550-12G)

 System Offering:
  CPU:2000 MHz
  Memory:2048 MB
  Network Rate:10000 MB

 Network Offering:
  Network Rate:10000 MB


(Case-1, Direct Access) Good
PhysicalServer--->VM Instance1
# ./nuttcp 192.168.11.2
 1122.3928 MB /  10.07 sec =  935.0451 Mbps 4 %TX 59 %RX 0 retrans 0.93
msRTT


(Case-2, VirtualRouter SourceNAT) Good
VM Instance2--->VirtualRouter--->PhysicalServer
# ./nuttcp 192.168.11.248
 1123.1641 MB /  10.03 sec =  938.9331 Mbps 12 %TX 15 %RX 0 retrans 3.11
msRTT


(Case-3, VirtualRouter StaticNAT) Not Good
PhysicalServer--->VirtualRouter--->VM Instance2
# ./nuttcp 192.168.11.173
  738.0000 MB /  10.01 sec =  618.6374 Mbps 2 %TX 48 %RX 0 retrans 2.84
msRTT


Thanks.

--------------------------
Satoru Nakaya

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