The hangs do not ALWAYS happen, they are more likely on more remote
connections and on connections via firewalls (in the latter case the
connections work fine for a similar FTP server running 2.0.36 and used to
work fine for ftp.tux.org prior to 2.2.x.
Anyone else running a large FTP server on 2.2.x yet? I'd like to hear
about what your users are saying about you.
DCN
On 10 Feb 1999, Harvey J. Stein wrote:
...
> Ok, so lets say for the sake of argument a packet got nuked & so my
> machine retransmitted at about 1 packet/second until it finally got
> the appropriate ACKs.
>
> The problem is that when it speeded up again it never completely
> filled the pipe. It doesn't look like the congestion window grew as
> much as it should have. This was for uploading 3 files of sizes 300k
> - 900k, upload times of 2-5 minutes per file. Once it got the
> appropriate ACKs & started speeding up again it should have opened the
> congestion window & filled the pipe, but this doesn't seem to have
> happened.
>
> The other weird thing is that it was very consistent for each file
> upload - starts off fast, stalls down to ~1 packet/second & then
> picked up again, but never really up to full speed. Why would each
> upload suddenly stall after about the same amount of time?
>
> BTW, I just did a couple more tests. It pretty consistently flies for
> ~20 seconds, then stalls @ 2 packets/second for ~20 seconds & then
> picks up again, but never reaching the initial speed.
>
> I still don't see why a) it would consistently stall after 20 seconds
> & b) it wouldn't ever recover back to full speed.
>
> --
> Harvey J. Stein
> BFM Financial Research
> hjstein@bfr.co.il
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>
--- David C Niemi ---niemi at tux.org--- Reston, Virginia, USA ---
But only the man who cares about something in itself, who loves
it and does it *con amore*, will do it in all seriousness. The
highest achievement has always been that of such men, and not of
the hacks who serve for pay. -- Arthur Schopenhauer
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/