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Date: Thu, 3 Jul 2014 23:37:15 +0900
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Subject: Re: Performance degrades when I use the StaticNAT in Virtual Router.
 Is there a way to speed up?
From: giraffeg forestg <giraffeforestg@gmail.com>
To: users@cloudstack.apache.org
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Hi All

Solved.

I gave the performance of the hardware. Speed =E2=80=8B=E2=80=8Bof StaticNA=
T for the
virtual router is faster now.
Performance of the hardware seems to have been insufficient.

(VirtualRouter StaticNAT)
PhysicalServer--->VirtualRouter--->VM Instance

--Before
CPU
 AMD Opteron Processor 3250 HE 2.5GHz
Disk
 7,200rpm SATA

# ./nuttcp 192.168.11.173
  738.0000 MB /  10.01 sec =3D  618.6374 Mbps 2 %TX 48 %RX 0 retrans 2.84


--After
CPU
 Xeon X5260 3.33GHz

Disk
 15,000rpm SAS

# ./nuttcp 192.168.11.234
 1051.9286 MB /  10.06 sec =3D  876.9177 Mbps 3 %TX 27 %RX 0 retrans 0.38
msRTT

Thanks.

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


2014-06-24 3:34 GMT+09:00 giraffeg forestg <giraffeforestg@gmail.com>:

> Thank you for advice. :)
>
> # Isolation based on Security Groups in Advanced Zone
> #
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Security+Groups+Is=
olation+in+Advanced+Zone
>
> However, I'm want to improve the speed of StaticNAT in Virtual Router.
>
> Trial-1:linux kernel parameter tuning of virural router
>
>  /etc/sysctl.conf
>
>  net.core.rmem_max =3D 16777216
>  net.core.wmem_max =3D 16777216
>  net.ipv4.tcp_rmem =3D 4096 87380 16777216
>  net.ipv4.tcp_wmem =3D 4096 65536 16777216
>
>  -> Did not improve performance.  :(
>
>
> Trial-2:disabling TSO of virural router
>
>  /ethtool -K eth0 tso off
>  /ethtool -K eth2 tso off
>
>  -> Did not improve performance.  :(
>
>
> Thanks.
>
> --------------------------
> Satoru Nakaya
>
>
>
> 2014-06-24 1:46 GMT+09:00 Nux! <nux@li.nux.ro>:
>
>> 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 ther=
e
>> 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 =3D  935.0451 Mbps 4 %TX 59 %RX 0 retrans 0.9=
3
>> msRTT
>>
>>
>> (Case-2, VirtualRouter SourceNAT) Good
>> VM Instance2--->VirtualRouter--->PhysicalServer
>> # ./nuttcp 192.168.11.248
>>  1123.1641 MB /  10.03 sec =3D  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 =3D  618.6374 Mbps 2 %TX 48 %RX 0 retrans 2.8=
4
>> msRTT
>>
>>
>> Thanks.
>>
>> --------------------------
>> Satoru Nakaya
>>
>
>

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