Max Klohn wrote:
> > Is anything going wrong?
> >
> > The attached output indicates the transfer of ~115kb in 4.55 seconds,
> > which averages ~1522kb/s:
Sorry. This should have been ~1522kb/minute, which is only 25kb/sec.
> what disturbs me is that i can get extremely good throughput in the
> w98--->linux transfers with smbclient...
> it's all the outgoing stuff that is affected. well, from my new tests today:
> ftp linux--->w98 about 1.2 mb/mn
> samba linux--->w98 about 1.6 mb/mn
> smbclient w98--->linux orders of magnitude faster!!! (742 kb/s) that's
> about what I was expecting the other way
>
> Since I project doing evening backups thru a lan througput would be
> important, since I can not afford to make people wait too long (it'll
> be a 300 MB medical database, needs accessibility 24/24). Currently an
> NT box (nearly fried btw) serves me the file in under 15mn, with the
> NT ipx/spx stack
> Should I really expect better or does linux currently top at those speeds?
No you should get substantially better than that.
> what throughput are you getting with your machines?
I've obtained better than 1Mbyte/sec.
One thing which I notice is that the retransmission rate seems fairly
high: 24 retransmits out of 82 distinct packets ~= 30%, with the
retransmit occurring after ~20ms (although the output only has 10ms
resolution).
Another thing is that the client's window is fairly small: 8760 bytes
(as opposed to 32Kb on the Linux end). With an RTT of 20ms, this would
limit you to around 430kb/s (which would still be a substantial
improvement over 25Kb/s, admittedly).
I can't see anything in the output which indicates why the server
would be so slow at sending.
--
Glynn Clements <[EMAIL PROTECTED]>
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to [EMAIL PROTECTED]
