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Curl current speed can become negative....

From: <Nico.Baggus_at_mail.ing.nl>
Date: Thu, 11 Oct 2001 15:34:29 +0200

It occurred to me that trying to bulk load some files from a web server
(locally connected, 100Mbps) that the current speed column contains negative
values.

Client is win32 V7.9
Server is a VMS webserver (WASD V6.1.5)

like:
C:\TEMP\test>curl -3 -u xxxxx:xxxxxxxx -K data.info
  % Total % Received % Xferd Average Speed Time Curr.
                                 Dload Upload Total Current Left Speed
100 329 100 329 0 0 164 0 0:00:02 0:00:02 0:00:00 329
100 5616 100 5616 0 0 6303 0 0:00:00 0:00:00 0:00:00 5287
100 44 100 44 0 0 44 0 0:00:00 0:00:00 0:00:00 -5572
0
100 399 100 399 0 0 414 0 0:00:00 0:00:00 0:00:00 355
100 48 100 48 0 0 48 0 0:00:00 0:00:00 0:00:00 -351
100 31 100 31 0 0 30 0 0:00:01 0:00:01 0:00:00 -17
100 503k 100 503k 0 0 149k 0 0:00:03 0:00:03 0:00:00 167k
100 880 100 880 0 0 861 0 0:00:01 0:00:01 0:00:00 -515120
0
100 89760 100 89760 0 0 64949 0 0:00:01 0:00:01 0:00:00 44440
100 251k 100 251k 0 0 113k 0 0:00:02 0:00:02 0:00:00 83735
100 99975 100 99975 0 0 69814 0 0:00:01 0:00:01 0:00:00 -157255
100 299k 100 299k 0 0 124k 0 0:00:02 0:00:02 0:00:00 689913
100 18275 100 18275 0 0 17224 0 0:00:01 0:00:01 0:00:00 -288675
100 2716 100 2716 0 0 3048 0 0:00:00 0:00:00 0:00:00 -15559
100 35680 100 35680 0 0 30972 0 0:00:01 0:00:01 0:00:00 32964
100 120 100 120 0 0 141 0 0:00:00 0:00:00 0:00:00 -35560
0
100 21520 100 21520 0 0 19706 0 0:00:01 0:00:01 0:00:00 21400
100 1318k 100 1318k 0 0 185k 0 0:00:07 0:00:07 0:00:00 178k
100 264 100 264 0 0 263 0 0:00:01 0:00:01 0:00:00
-1349976 0
100 115k 100 115k 0 0 80203 0 0:00:01 0:00:01 0:00:00 115k
100 761k 100 761k 0 0 165k 0 0:00:04 0:00:04 0:00:00 175k0
100 255k 100 255k 0 0 115k 0 0:00:02 0:00:02 0:00:00 -259100
100 920k 100 920k 0 0 142k 0 0:00:06 0:00:06 0:00:00 140k61
100 47821 100 47821 0 0 35110 0 0:00:01 0:00:01 0:00:00 -894904
100 224 100 224 0 0 164 0 0:00:01 0:00:01 0:00:00 -47597
0
100 40 100 40 0 0 29 0 0:00:01 0:00:01 0:00:00 -184

data.info contains a bunch of lines along:
        -o <dir>/<file>
        url = https://<site>/data/test/<file>

The trailing zeros probably are left from previously printed larger numbers...
Looking at the source the problem is not very obvious to me.
It might have something to do wih the short transmis times.

regards,
Nico Baggus

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Received on 2001-10-11