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Drastic network performance problem

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Greetings,

 

I am experiencing a very significant network throuput problem with

VMWare Server 1.0.0 build 24927.  Both my host and guest OS's are 64

bit Suse Linux 10.1.  I am using iperf version 2.0.2

(http://dast.nlanr.net/Projects/Iperf/) to messure the IP/Network

throughput.  The numbers I get are as follows:

 

        guest to host - 73 Mbits / sec

        host to guest - 113 Kbits / sec

 

Yes, that's Mega and Kilo.  That means it is 646 TIMES faster from

guest to host than host to guest.

 

I checked all the things I could given my limited understanding.

There doesn't appear to be any network errors going on.

 

I have three physical network ports and I am using and mapped to two

of them on both the host and guest OS.  Yes, the VMWare tools are

installed on the guest OS.

 

The guest OS is configured as follows:

 

        Ethernet 1 - Custom /dev/vmnet2

        Ethernet 2 - Custom /dev/vmnet3

 

Except for the drastic speed problem everything is working.

 

The ipconfig on the host is as follows:

 

eth1      Link encap:Ethernet  HWaddr 00:04:23:CD:1F:62 

          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::204:23ff:fecd:1f62/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:1112611 errors:0 dropped:0 overruns:0 frame:0

          TX packets:1446450 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100

          RX bytes:235979846 (225.0 Mb)  TX bytes:1523295649 (1452.7 Mb)

          Base address:0x1080 Memory:e0080000-e00a0000

 

eth2      Link encap:Ethernet  HWaddr 00:04:23:CD:1F:63 

          inet addr:192.168.2.2  Bcast:192.168.2.255  Mask:255.255.255.0

          inet6 addr: fe80::204:23ff:fecd:1f63/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:5494 errors:0 dropped:0 overruns:0 frame:0

          TX packets:430622 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:100

          RX bytes:694655 (678.3 Kb)  TX bytes:89106708 (84.9 Mb)

          Base address:0x1040 Memory:e00a0000-e00c0000

 

lo        Link encap:Local Loopback 

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:24719 errors:0 dropped:0 overruns:0 frame:0

          TX packets:24719 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:16109279 (15.3 Mb)  TX bytes:16109279 (15.3 Mb)

 

vmnet1    Link encap:Ethernet  HWaddr 00:50:56:C0:00:01 

          inet addr:172.16.206.1  Bcast:172.16.206.255  Mask:255.255.255.0

          inet6 addr: fe80::250:56ff:fec0:1/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:117 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

vmnet8    Link encap:Ethernet  HWaddr 00:50:56:C0:00:08 

          inet addr:172.16.51.1  Bcast:172.16.51.255  Mask:255.255.255.0

          inet6 addr: fe80::250:56ff:fec0:8/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:0 errors:0 dropped:0 overruns:0 frame:0

          TX packets:120 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

 

 

The ipconfig on the guest is as follows:

 

eth1      Link encap:Ethernet  HWaddr 00:0C:29:06:0F:CD 

          inet addr:192.168.1.4  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe06:fcd/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:248633 errors:0 dropped:0 overruns:0 frame:0

          TX packets:154090 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:309853820 (295.4 Mb)  TX bytes:92956405 (88.6 Mb)

          Base address:0x1410 Memory:ec820000-ec840000

 

eth2      Link encap:Ethernet  HWaddr 00:0C:29:06:0F:D7 

          inet addr:192.168.2.4  Bcast:192.168.2.255  Mask:255.255.255.0

          inet6 addr: fe80::20c:29ff:fe06:fd7/64 Scope:Link

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

          RX packets:417306 errors:0 dropped:0 overruns:0 frame:0

          TX packets:844385 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:67500272 (64.3 Mb)  TX bytes:1179783581 (1125.1 Mb)

          Base address:0x1418 Memory:ec840000-ec860000

 

lo        Link encap:Local Loopback 

          inet addr:127.0.0.1  Mask:255.0.0.0

          inet6 addr: ::1/128 Scope:Host

          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:517 errors:0 dropped:0 overruns:0 frame:0

          TX packets:517 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:38492 (37.5 Kb)  TX bytes:38492 (37.5 Kb)

 

 

The boot log for the host are filled with comments about the eth ports

which I don't understand.  I can e-mail it if necessary.  The same id

true for the guest OS.

 

Your help is greatly appreciated.

 

Blake McBride

blake@mcbride.name


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