CE and -test7 communication broken

From: Pavel Machek (pavel@suse.cz)
Date: Fri Sep 01 2000 - 16:09:27 EDT

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Hi!

With -test7, tcp connection to CE machine is _even slower_ than it
used to. CE are too slow to handle 115k200 serial, still they got at
least 2K/sec to linux-2.4.0-test6 (and previous).

tcpdump now looks like this:
22:03:42.200251 10.0.0.3.www > 192.168.55.100.1026: . 8761:10221(1460)
ack 193 win 6432 (DF)
22:03:42.890251 192.168.55.100.1026 > 10.0.0.3.www: . ack 10221 win
3100 (DF)
22:03:42.900251 10.0.0.3.www > 192.168.55.100.1026: P
10221:11681(1460) ack 193 win 6432 (DF)
22:03:42.900251 10.0.0.3.www > 192.168.55.100.1026:
. 11681:13141(1460) ack 193 win 6432 (DF)
22:03:43.690251 192.168.55.100.1026 > 10.0.0.3.www: . ack 11681 win
3100 (DF)
22:03:43.700251 10.0.0.3.www > 192.168.55.100.1026: P
13141:14601(1460) ack 193 win 6432 (DF)
22:04:05.860251 10.0.0.3.www > 192.168.55.100.1026:
. 11681:13141(1460) ack 193 win 6432 (DF)
22:04:06.530251 192.168.55.100.1026 > 10.0.0.3.www: . ack 13141 win
3100 (DF)
22:04:06.540251 10.0.0.3.www > 192.168.55.100.1026: P
13141:14601(1460) ack 193 win 6432 (DF)
22:04:06.540251 10.0.0.3.www > 192.168.55.100.1026:
. 14601:16061(1460) ack 193 win 6432 (DF)
22:04:07.370251 192.168.55.100.1026 > 10.0.0.3.www: . ack 14601 win
3100 (DF)
22:04:07.380251 10.0.0.3.www > 192.168.55.100.1026: P
16061:17521(1460) ack 193 win 6432 (DF)
22:04:52.460251 10.0.0.3.www > 192.168.55.100.1026:
. 14601:16061(1460) ack 193 win 6432 (DF)
22:04:53.050251 192.168.55.100.1026 > 10.0.0.3.www: . ack 16061 win
3100 (DF)
22:04:53.060251 10.0.0.3.www > 192.168.55.100.1026: P
16061:17521(1460) ack 193 win 6432 (DF)
22:04:53.060251 10.0.0.3.www > 192.168.55.100.1026:
. 17521:18981(1460) ack 193 win 6432 (DF)
22:04:53.780251 192.168.55.100.1026 > 10.0.0.3.www: . ack 17521 win
3100 (DF)
22:04:53.790251 10.0.0.3.www > 192.168.55.100.1026: P
18981:20441(1460) ack 193 win 6432 (DF)
22:06:24.900251 10.0.0.3.www > 192.168.55.100.1026:
. 17521:18981(1460) ack 193 win 6432 (DF)
22:06:25.580251 192.168.55.100.1026 > 10.0.0.3.www: . ack 18981 win
3100 (DF)
22:06:25.590251 10.0.0.3.www > 192.168.55.100.1026: P
18981:20441(1460) ack 193 win 6432 (DF)
22:06:25.590251 10.0.0.3.www > 192.168.55.100.1026:
. 20441:21901(1460) ack 193 win 6432 (DF)
22:06:26.290251 192.168.55.100.1026 > 10.0.0.3.www: . ack 20441 win
3100 (DF)
22:06:26.300251 10.0.0.3.www > 192.168.55.100.1026: P
21901:23361(1460) ack 193 win 6432 (DF)

Pavel

-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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Next message: Pavel Machek: "Re: 2.2.16 deadlocking in schedule()"
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