higher speed with wireless than wired!
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From: mm on 28 Jun 2010 15:14 I have a router, and I'm hoping someday to have a little home network. No time to work on that now, but I'm happy that the wired and wireless connections work. In the computer on my desk, 2 or 3 feet as the wire goes, from the router, I get a 100.0 Mbps connection. Today I noticed that the computer in the basement, two flights down and 20 feet horizontally, I get 180.0 Mbps. A. What's up with that? Is it faster in the air because air is "thinner" than wire? If it were fudge, would it be somewhere in the middle? If it matters, the first computer is 800 Mhz running XP sp3, and the basement computer is 1300 Mhz win2000 sp4. B. Does the OS or cpu speed matter?
From: alexd on 28 Jun 2010 15:42 Meanwhile, at the alt.internet.wireless Job Justification Hearings, mm chose the tried and tested strategy of: > In the computer on my desk, 2 or 3 feet as the wire goes, from the > router, I get a 100.0 Mbps connection. > > Today I noticed that the computer in the basement, two flights down > and 20 feet horizontally, I get 180.0 Mbps. In both cases that's the raw speed. With the wireless however, the overheads are a lot higher, so the actual usable throughput you get from the wireless may be less than the wired connection. Another thought that strikes me is that the speed will always be shown as 180Mbps regardless of the quality of the wireless signal. Move to the edge of your wireless range and see if it still reports a 180Mbps connection. > B. Does the OS or cpu speed matter? Yes. If you have an inefficient OS [or more likely, inefficient network drivers] or a slow CPU, you may hit other bottlenecks before the network speed. If you want to test this yourself, you can use a synthetic bandwidth testing tool like iperf [or maybe that's iPerf]. -- <http://ale.cx/> (AIM:troffasky) (UnSoEsNpEaTm(a)ale.cx) 20:34:33 up 2 days, 8:02, 5 users, load average: 0.06, 0.24, 0.64 Qua illic est accuso, illic est a vindicatum
From: Mike Easter on 28 Jun 2010 15:55 mm wrote: > In the computer on my desk, 2 or 3 feet as the wire goes, from the > router, I get a 100.0 Mbps connection. There are ethernet nic/s that just do 100 Mbit/s. Also that do 1000. And some 1 Gigs. Enterprise 10/40/100 gigs developing. > If it matters, the first computer is 800 Mhz running XP sp3, and > the basement computer is 1300 Mhz win2000 sp4. > > B. Does the OS or cpu speed matter? The card or the mobo implementation of a nic matters. -- Mike Easter
From: mm on 28 Jun 2010 18:47 On Mon, 28 Jun 2010 12:55:49 -0700, Mike Easter <MikeE(a)ster.invalid> wrote: >mm wrote: > >> In the computer on my desk, 2 or 3 feet as the wire goes, from the >> router, I get a 100.0 Mbps connection. > >There are ethernet nic/s that just do 100 Mbit/s. Also that do 1000. >And some 1 Gigs. Enterprise 10/40/100 gigs developing. I forgot that my nic is 100/1000. >> If it matters, the first computer is 800 Mhz running XP sp3, and >> the basement computer is 1300 Mhz win2000 sp4. >> >> B. Does the OS or cpu speed matter? > >The card or the mobo implementation of a nic matters. Well, an other guy set up the fast one, and I just plugged in the seemingly slower XP one. Either speed is fast enough. I just wanted to know what is going on. Thanks.
From: mm on 28 Jun 2010 18:48
On Mon, 28 Jun 2010 20:42:17 +0100, alexd <troffasky(a)hotmail.com> wrote: >Meanwhile, at the alt.internet.wireless Job Justification Hearings, mm chose >the tried and tested strategy of: > >> In the computer on my desk, 2 or 3 feet as the wire goes, from the >> router, I get a 100.0 Mbps connection. >> >> Today I noticed that the computer in the basement, two flights down >> and 20 feet horizontally, I get 180.0 Mbps. > >In both cases that's the raw speed. With the wireless however, the overheads >are a lot higher, so the actual usable throughput you get from the wireless >may be less than the wired connection. Thank goodness for that. I like wire, and I don't like to see it dissed. Air otoh is promiscuous. > Another thought that strikes me is >that the speed will always be shown as 180Mbps regardless of the quality of >the wireless signal. Move to the edge of your wireless range and see if it >still reports a 180Mbps connection. I'd need bigger arms and a longer cord. I do have a laptop, but haven't used it for a year or two. It's mostly for travel or showing people photos. >> B. Does the OS or cpu speed matter? > >Yes. If you have an inefficient OS [or more likely, inefficient network >drivers] or a slow CPU, you may hit other bottlenecks before the network >speed. > >If you want to test this yourself, you can use a synthetic bandwidth testing >tool like iperf [or maybe that's iPerf]. I'll look into that. I don't do anything requiring speed, except sometimes dl'ing video. Maybe I'll do some of that to see if I can see a difference. Thanks. |