Network adapter eating CPU power!

Oreo

Senior member
Oct 11, 1999
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I recently got some broadband action (10MBit) and it works great except that when I d/l at high speeds, say 400Kbyte/sec my CPU usage is at like 30-50%. That makes it pretty hard watching a DivX or doing other stuff while d/l. Is this normal with ethernet/network adapters?
 

Poochy

Senior member
Jan 11, 2001
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Which NIC do you have? Some have low cpu overhead, others not so low :). You sure it's not an issue with your drive as well, since you are downloading?
 

Oreo

Senior member
Oct 11, 1999
755
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I´ve just got a cheap Realtek based NIC. Would there be a difference with a more expensive NIC?
 

Salvador

Diamond Member
May 19, 2001
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I've heard that cheap generic NIC's can rob your CPU.

BTW.. I have a Linksys that I just bought. Does anyone know if this is a CPU sucker? Is there a way to tell?

Sal
 

sitka

Senior member
Dec 29, 2000
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dink around with the drivers a little...ie use windows default, old/new version or windows update
 

Gunbuster

Diamond Member
Oct 9, 1999
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I am pulling from 6 people for a total of ~980Kb
Average CPU usage is at 20% with 4 mIRC sessions and IE open

Using a Intel pro/100+ NIC
 

Hoober

Diamond Member
Feb 9, 2001
4,395
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That Intel is a good NIC. You could try for a more expensive one with a "mini-CPU" built into the NIC to handle all TCP/IP (read network) traffic. But its up to you. Intel makes good NICs.
 

LocutusX

Diamond Member
Oct 9, 1999
3,061
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Interesting... I'm using some generic "sohoware" NIC that I got free with the cable modem service and at 3000KB/s of TCP/IP traffic my CPU usage bounces between 8% and 15%.

Note: Obviously, my speed test above was done on a LAN. I dont think even the fastest .EDU connections are capable of that speed. :)