100Mbit network performance - again

[Andrew P.]

On 7/27/05, Michael C. Shultz <ringworm01 at gmail.com> wrote:
> On Tuesday 26 July 2005 16:00, Andrew P. wrote:
> > Hello all!
> >
> > I remember being able to reach 11-12Mbytes/s between two Win95
> > workstations with NE2000 $10 NIC's installed, connected via BNC cable.
> > I am now able to reach 11-12Mbytes/s between all kinds of Windows
> > 2000/XP machines with all kinds of cheapest 100Mbit ethernet hardware.
> >
> > But I have never ever exceeded 8-9Mbytes/s between a Windows machine
> > and a FreeBSD box - _never_. Be it Samba, different ftp/http servers,
> > different FreeBSD versions (4.x/5.x), with ipfw enabled or disabled,
> > etc., - the speed always hovers around 7-8Mb/s. I know it's not
> > critical, I know I should've upgraded to Gigabit hardware long ago,
> > but is there something wrong?
> >
> > I tried different linux distros, but they all seem to be even slower.
> > Wazzup?..
> >
> > Thanks,
> > Andrew P.
> 
> Here is the "ifconfig" output from a machine that has one nic set at
> 10Mbit/half duplex and one at 100Mbit full duplex. how does it compare with
> your system?
> 
> xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=1<RXCSUM>
>         inet6 fe80::210:4bff:fe70:4fb0%xl0 prefixlen 64 scopeid 0x1
>         inet 71.102.0.97 netmask 0xffffff00 broadcast 71.102.0.255
>         ether 00:10:4b:70:4f:b0
>         media: Ethernet autoselect (10baseT/UTP)
>         status: active
> xl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>         options=1<RXCSUM>
>         inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
>         inet6 fe80::210:4bff:fe0a:7cbc%xl1 prefixlen 64 scopeid 0x2
>         ether 00:10:4b:0a:7c:bc
>         media: Ethernet 100baseTX <full-duplex>
>         status: active
> 
Well, if that really matters to you:
(freebsd 5.4)
vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet6 fe80::20f:3dff:feca:c494%vr0 prefixlen 64 scopeid 0x1
        inet 192.168.17.217 netmask 0xffffff00 broadcast 192.168.17.255
        ether 00:0f:3d:ca:c4:94
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet 192.168.17.1 netmask 0xffffff00 broadcast 192.168.17.255
        ether 00:40:f4:8d:a7:f8
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
rl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        ether 00:40:f4:8d:9c:af
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
(fedora core 4)
eth0      Link encap:Ethernet  HWaddr 00:E0:81:2F:04:3E
          inet addr:193.233.5.13  Bcast:193.233.5.63  Mask:255.255.255.192
          inet6 addr: fe80::2e0:81ff:fe2f:43e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:123946466 errors:0 dropped:0 overruns:0 frame:0
          TX packets:176380358 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:42267471987 (39.3 GiB)  TX bytes:197116022761 (183.5 GiB)
          Interrupt:177

Andrew P.