Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

mark2288

macrumors regular
Original poster
Jan 11, 2006
239
4
Hey all,
I was running some networking performance tests the other day for some research project. Essentially I have 7 computers on a LAN that is not connected to the Internet - all computers are connecting wirelessly. I have one computer function as a server and it multicasts pings to the other 6 computers at a constant rate (e.g. sends a packet every 2 seconds).

I noticed some odd behavior - 4 computers received the packets in about the right time intervals (every 2 seconds), but 2 would get packets at intervals of roughly .92 seconds and 1.12 seconds consistently. I realized that these 2 computers were running on battery and not plugged in. Plugging in all computers got all the computers receiving packets at the same time.

I speculate that when a computer is unplugged, the Airport card works at a lower frequency to save energy...any thoughts?

Also, would it be possible to tell the Airport card to function at full power regardless of the power state? Any chance we could "overclock" the airport card to make it work at a faster rate?

These are all Macbooks I'm working with.

Thanks in advance!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.