On Sat, Nov 14, 2009 at 9:45 AM, MotoBaridi <motobaridi@gmail.com> wrote:

sknks,
when using a 10Mbps pcmcia network interface, the Network Utilisation (TaskMan) indicates increasing usage as i increase network traffic (downloads etc), all the way upto 88%.
however, when using a 100Mbps interface, the same gets stuck at 0.47%, no matter how much traffic i push.
networking gurus, anyone to shed some light on this?
what / where / why is the bottleneck?

<m.b>

0.47% or 4.7% ?

10 Mbps [Half-duplex ] = BW of 1 MB/sec

100 Mbps [Full-duplex] = BW of 20 MB/sec

88% of 1 MB/sec = 880 KB/sec

(880KB/sec) / (20 MB/sec) = ~ 0.45 = 4.5%

Where is your download source?

The most accurate way to check your bandwidth is to transfer data to/from RAM between two machines, time the transfer and check the BW. There are an inordinately large number of tools out there what will do this for you.