TCP window scaling too fast in 2.1.108?

Rik van Riel (H.H.vanRiel@phys.uu.nl)
Fri, 10 Jul 1998 00:13:27 +0200 (CEST)


Hi,

I've experienced some pretty bad throughput over my
high-latency PPP link.

I've monitored the situation somewhat more precise
and sometimes have 40 (!) second latencies and hence
the window should scale to some 120 kB to give full
throughput...

This seems to happen correctly, but every 7 to 10
seconds the throughput falls back to .6 kB/s to
grow up to 2.6 kB and then fall back again.

After a quick glance over the source code, the TCP
window scaling code looks a bit suspect, but maybe
there's something else that could be causing it.
Since I don't want to make my phonebill twice the
cost it should have had, I'm asking this here.

Rik.
+-------------------------------------------------------------------+
| Linux memory management tour guide. H.H.vanRiel@phys.uu.nl |
| Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ |
+-------------------------------------------------------------------+

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu