Ashutosh Naik wrote:
My configuration is two Dell Optiplex PCs ( /proc/cpuinfo attached)
connected back to back.. I am using the vanilla 2.6.14.3 kernel, and
using the e1000 driver for the onboard Intel PRO 1000 Ethernet Card on
both machines. I am performing both Full and Half Duplex Data
Transfer and the figures which I am getting are abysmal..
Full Duplex Data Transfer ( Both send and receive )
Ettcp Send - 55167.45 KB/sec
Ettcp Receive - 54902.49 KB/sec
Total Throughput ~ 110MB/sec
CPU IDLE - 55 percent
Half Duplex Data Transfer ( Sending from one host to another )
Total Throughput = 103 MB/Sec
CPU IDLE - 65 percent
Now, I assume that on Gigabit ethernet, I should be getting Line Rate,
which is around 220 MBps. Even the CPU is not getting max-ed out here
and I am at a loss to understand this behaviour.
Make sure you are running 64-bit 100+Mhz PCI, otherwise you will not
get line speed. ethtool -d [device]
may get that info for you.
Ben
--
Ben Greear <[EMAIL PROTECTED]>
Candela Technologies Inc http://www.candelatech.com
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