7MB on FTP sounds a little low, but not a lot. Max would be
12.5MByte/sec, and normal max would be about 11MByte/sec.
Heck, I can get 8.5MBytes/sec going through our 100Mbit Linux router (4
port).
Over GigaBit (HP Switches, I am getting 12-14MByte/sec using SCP, and a
copy over NFS is even faster:
[EMAIL PROTECTED]:/tmp$ time cp /net/meneldor/home/hmcgregor/greg-1.tif .
real 0m25.162s
user 0m0.102s
sys 0m11.862s
661217378 greg-1.tif
That's about 25MBytes/sec
Gigabit's max is 125MBytes/sec, but PCI bus issues, HD speeds, etc, all
bring it down.
I have found GigE to the desktop to be worth it, as it's faster than
100Mbit. Modern PC systems can't handle it. Heck some of our servers
don't have 64 bit PCI yet.
Harry
On Wed, 2005-07-13 at 14:48 -0400, Ben Ruset wrote:
> I find that I only get 7MB or so ftp'ing files from our XServe to my
> laptop and that's on a 100mb connection.
>
> I blame the slow ass hard drive in my Toshiba.
>
> Winterlight wrote:
>
> > I have had a Gbit network for about 8 months. Two PCs with onboard Intel
> > Gbit NICs, and one PC with a SMP Gbit nic, all plugged into a 5 port
> > Gbit switch using CAT7. The switch is plugged into a Netgear 314 10/100
> > router.
> >
> > Everything else on the LAN plugs into a Dlink 10/100 8 port switch with
> > CAT 5e.
> > Both switches plug into the Netgear Router.
> >
> > When I first set mine up I had the same question. Why was it so slow. I
> > called SMP, I tried all sorts of tests, including running with the two
> > Intel NICs ONLY through the SMP Gbit switch, with nothing hooked up to
> > anything but Gbit hardware = No router. That made it go faster but
> > nothing gave me speeds even approaching 1000 megabit
> >
> > Both the switch, and my NICs, support Jumbo Frames to 9014 bytes, but
> > enabling this makes the connection problematic and does nothing for
> > performance. I have read that Jumbo frames will only work on a pure GB
> > network, so buying a router for this feature, on a mixed network, is a
> > waste of money.
> >
> > I never figured out, or found a plausible explanation of why Gbit runs
> > so slow, relative to it's specifications. At this point, I have just
> > accepted it. GB networks appear to be vapor ware.
> >
> >
> >
--
Harry McGregor <[EMAIL PROTECTED]>
Open Source Education Foundation
