Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I just installed Server 12.04 and I'm seeing performance issues with my network adapter.
I'm wondering if there's a better driver or setting I might be missing?

For example, my download speeds on my laptop are 15Mbit/s - 25Mbit/s while the same downloads on the Desktop are always less than 10Mbit and I also have issues with streaming HD content (doesn't seem to be processor related as this is 3.2GHZ Dual core and processor never hits above 70% when transcoding).

Here is my output from lshw relating to my ethernet interface.

description:    Ethernet interface  
product:    82547EI Gigabit Ethernet Controller  
vendor: Intel Corporation  
physical id:       
bus info:     
logical name:     
version:    00  
serial: 00:11:11:b3:88:c1  
size:   1Gbit/s  
capacity:   1Gbit/s  
width:  32 bits  
clock:  66MHz  
capabilities:   pm bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation  
autonegotiation =   on  
broadcast   =   yes  
driver  =   e1000  
driverversion   =   7.3.21-k8-NAPI  
duplex  =   full  
firmware    =   N/A  
ip  =  
latency =   0  
link    =   yes  
mingnt  =   255  
multicast   =   yes  
port    =   twisted pair  
speed   =   1Gbit/s  
irq :   18  
memory  :   ff6e0000-ff6fffff  
ioport  :   ac00(size=32)
share|improve this question
For reference, I'm running a P4 3.2 GHZ Extreme Edition, 4GB of ram, Intel D875PBZ motherboard. –  David Dec 8 '12 at 17:40
Also found that others seem to be having the issue answers.launchpad.net/ubuntu/+question/196533 –  David Dec 8 '12 at 19:05
What does ifconfig say about lost packages? –  Anders Dec 10 '12 at 2:07
add comment

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.