On Fri, 14 Jan 2005 02:23 pm, Jan Schmidt wrote: > On Fri, 2005-01-14 at 11:38 +1100, Jeff Waugh wrote: > > <quote who="Peter Rundle"> > > > > > >Well, scp is poo for transferring files. :-) > > > > > > Using 100Mbit cable ethernet I can transfer the same file to the same > > > server at 4.6MB/sec using scp. With the wireless connection, which is > > > quoted as 108Mbit, I'm currently getting 40KB/sec. So that means it's > > > about 500 times slower all else being equal. :-( > > > > Sure, there's craploads of overhead they don't bother mentioning, all > > of which is not present on wired networks. LAN wifi infrastructure is a > > convenience. If you're looking for performance, you're looking in the > > wrong place. :-) > > Nevertheless, 40KB/s is pretty slow. For reference I get ~550KB/s here > using scp, on a laptop with a 10Mb wireless chipset talking to a 55Mb > Linksys AP. > > J.
Ditto here. My setup:
NetComm 11b/g access point plugged into el-cheapo "ST LAB" 10/100 switch.
Two hosts:
Lappy = Dlink DWL650 (purchased from elx.com.au - thanks guys!)
Wife's Desktop = Dlink PCI something-or-another (11b/g cost <$90)
On both hosts I can get a sustained 550-600kB/sec transfer (around 5.5Mbps
which is actually 11Mbps, seems ACK packets eat 50% the signalling.
11/54Mbps is only possible when the protocol used doesn't reply with ACK
packets etc, otherwise you get 50% - sorta half duplex). The whole setup
cost about $350 for the AP and both wifi cards. Okay the performance isn't
"stellar" but it's certainly adequate for a simple home network and was
several orders of magnitude easier+quicker than hard wiring a cable to the
opposite end of the house!
BTW, my wife uses her PC mostly for e-mail/web and photo editing with all
her finished photos being transferred to the file server. Some are
uncompressed TIFF's around several hundred MB each! She doesn't seem to
miss her RTL8139 (el-cheapo) hard-wired NIC ... it managed about the same
throughput as her Wifi card!!
Caveat: the Dlink PCI Wifi card in my wife's PC caused all manner of grief
when trying to get it running with an SB Live! sound card on Win2K - the
two wont work together (firmware problem on Wifi card). Many hours spent
googling that little headache! In the end the SB Live! was replaced with
an el-cheapo PCI sound card.
James
--
Nothing takes the taste out of peanut butter quite like unrequited love.
-- Charlie Brown
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