OVH server, slow speed download by lftp, sometimes only 350kb/s

xrz

Can you explain me this iperf result? thx!

Bandwith should be 500mpbs

> root@root:~# iperf -c iperf.ovh.net -i 1

Client connecting to iperf.ovh.net, TCP port 5001

TCP window size: 45.0 KByte (default)

[ 3] local ... port 47846 connected with 188.165.12.136 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 63.4 MBytes 532 Mbits/sec
[ 3] 1.0- 2.0 sec 23.1 MBytes 194 Mbits/sec
[ 3] 2.0- 3.0 sec 22.4 MBytes 188 Mbits/sec
[ 3] 3.0- 4.0 sec 18.4 MBytes 154 Mbits/sec
[ 3] 4.0- 5.0 sec 15.4 MBytes 129 Mbits/sec
[ 3] 5.0- 6.0 sec 15.5 MBytes 130 Mbits/sec
[ 3] 6.0- 7.0 sec 8.50 MBytes 71.3 Mbits/sec
[ 3] 7.0- 8.0 sec 7.25 MBytes 60.8 Mbits/sec
[ 3] 8.0- 9.0 sec 9.75 MBytes 81.8 Mbits/sec
[ 3] 9.0-10.0 sec 9.88 MBytes 82.8 Mbits/sec
[ 3] 0.0-10.1 sec 194 MBytes 161 Mbits/sec
root@root:~#

root@root:~# iperf -c ping.online.net -i 2 -t 20 -r

Server listening on TCP port 5001

TCP window size: 85.3 KByte (default)

---

Client connecting to ping.online.net, TCP port 5001

TCP window size: 45.0 KByte (default)

[ 4] local ... port 53286 connected with 62.210.18.40 port 5001
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 2.0 sec 104 MBytes 435 Mbits/sec
[ 4] 2.0- 4.0 sec 97.6 MBytes 409 Mbits/sec
[ 4] 4.0- 6.0 sec 103 MBytes 433 Mbits/sec
[ 4] 6.0- 8.0 sec 109 MBytes 457 Mbits/sec
[ 4] 8.0-10.0 sec 116 MBytes 489 Mbits/sec
[ 4] 10.0-12.0 sec 109 MBytes 457 Mbits/sec
[ 4] 12.0-14.0 sec 115 MBytes 483 Mbits/sec
[ 4] 14.0-16.0 sec 120 MBytes 502 Mbits/sec
[ 4] 16.0-18.0 sec 103 MBytes 434 Mbits/sec
[ 4] 18.0-20.0 sec 114 MBytes 479 Mbits/sec
[ 4] 0.0-20.0 sec 1.07 GBytes 458 Mbits/sec
root@xxx:~#

root@root:~# iperf -c ping.online.net -i1 -t10 -r -P16 |grep SUM
[SUM] 0.0- 1.0 sec 72.8 MBytes 611 Mbits/sec
[SUM] 1.0- 2.0 sec 51.9 MBytes 436 Mbits/sec
[SUM] 2.0- 3.0 sec 64.0 MBytes 537 Mbits/sec
[SUM] 3.0- 4.0 sec 47.1 MBytes 395 Mbits/sec
[SUM] 4.0- 5.0 sec 64.4 MBytes 540 Mbits/sec
[SUM] 5.0- 6.0 sec 52.2 MBytes 438 Mbits/sec
[SUM] 6.0- 7.0 sec 61.7 MBytes 517 Mbits/sec
[SUM] 7.0- 8.0 sec 54.1 MBytes 454 Mbits/sec
[SUM] 8.0- 9.0 sec 54.2 MBytes 455 Mbits/sec
[SUM] 9.0-10.0 sec 63.1 MBytes 530 Mbits/sec
[SUM] 0.0-10.2 sec 586 MBytes 483 Mbits/sec

doghouch

What are you talking about? All the results contradict what you say in the title.

xrz

i use https://lftp.tech/ aka lftp on ubuntu, and when downloading via lftp from remote server (which is 10Gbit) speed is only about 350 kb/s so thats why the iperf thing, is the iperf showing thats it is 500 mbps? cause i have ovh with 500mbps bandwidth

hucken

your iperf to online.net looks fine. the internal to ovh does not look that good (i'm at ~700Mbit/s, but i'm on the same ip range as the iperf server - same dc?)

from where are you transfering your files, maybe it's just a peering issue

xrz

transfering files from EvoSwitch