My measurements are indeed in KBytes but Dave states MBytes and MBits.
What do you get typically on your LAN, Mark?
BTW, we are all using decent 3com cards and we "think" we're using
proper CAT.5 (and it's certainly twisted). And we are using proper hubs
and switches.
Brendan asks what difference length of cabling typically makes?
I will be checking out the ethernet HOWTO soon.
Ben
Mark Sutton wrote:
>
> Dave,
>
> If Ben's measurements are in KBytes not Kbits, then they would agree with
> your comments:
>
> HTTP
> ====
> chiefwigham - 275 kB/s = 2.2Mb/s
> brendan - 301 kB/s = 2.4Mb/s
>
> FTP (downloading)
> ===
> chiefwigham - 283 kB/s = 2.3Mb/s
> brendan - 347 kB/s = 2.8Mb/s
>
> FTP (uploads)
> ===
> chiefwigham - 192 kB/s = 1.5Mb/s
> brendan - 180 kB/s = 1.4Mb/s
>
> Ben - can you clarify?
>
> Has anyone else done any benchmarking on production machines?
>
> Thanks,
>
> Mark.
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Dave C.
> > Sent: 13 June 2001 15:19
> > To: [EMAIL PROTECTED]
> > Subject: RE: [OT ish] - Is it our LAN?
> >
> >
> > Your machines should be capable of at least 2-3 MB/s (that's megabytes per
> > second) in a standard setup.
> > A properly set 10mbit lan can easily top the 1MB/s barrier.
> >
> > This means:
> >
> > 1. Use proper CAT.5 cables (the correct wiring is not "straight")
> > 2. Use good network cards (altough I get that speed from a junk
> > rtl8139 too)
> > 3. Use proper hubs/switches
> >
> > Once the hardware is in place (wiring etc), try to decrease the
> > transmission
> > window of the cards. Most of the cheap cards have a small amount of memory
> > on-boards, so to send a packet you need a few retransmissions.
> >
> > If it still doesn't work.....
> >
> > Check the bus-mastering stuff. Is it working?
> > Check that you're not sharing the irq of the card with another device.
> > Try to adjust the full-half duplex settings (you can only support full
> > duplex on a switch that supports it too).
> >
> > And read the ethernet howto. There's some performance tips there.
> >
> > HTH,
> > Dave.
> >
