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Slow network


poiuty
09-08-2016, 18:45
Dani, no, all containers use very few network. (openvz node now work very nice (SP-64 => 37.187.164.150))
I still have problem with KVM node (149.202.219.119) => into VM wget 1Gio.dat 1~2M/s (51.254.108.34)
Code:
# wget http://ovh.net/files/1Gio.dat -O /dev/null
 9% [===========>                                                                                                                      ] 104,635,026 1.18M/s
But another KVM node (149.202.204.71) => VM wget 1Gio.dat 100~102M/s (151.80.92.206)
Code:
# wget http://ovh.net/files/1Gio.dat -O /dev/null
Saving to: ‘/dev/null’
/dev/null                                  100%[=========================================================================================>]   1.00G   111MB/s
So I have no idea. How to debug it.

Dani
09-08-2016, 16:59
Hi

As the test is done in a container could there be another instance/container which is also actively engaging the network connection?

One of my colleagues will contact you shortly in relation to this issue.

Thanks

Danny

poiuty
09-08-2016, 14:06
Buy SP-64 and move OpenVZ. One hour => no problem.

poiuty
09-08-2016, 00:22
Try again, downgrade driver to 4.2.1 and reboot.
First 8 minutes work fine and after slow speed.


poiuty
09-08-2016, 00:01
After 5~10 minutes speed down.
Cant find any info in messages http://pastebin.com/5m7TMXuy or other logs.
Before use server HOST64L (2x480G) => have no problem.
After upgrade to new server HOST64L (2x480G + 2x2TB SATA) => get this problem.

Same settings openvz kernel 2.6.32-042stab116.2, driver: ixgbe version: 4.4.6
How debug it?

poiuty
08-08-2016, 23:40
Dani , use Rescue-pro and test fine.
After restart node => speed look good.

Code:
root@vps239:/# wget http://ovh.net/files/1Gio.dat -O /dev/null
--2016-08-09 00:39:49--  http://ovh.net/files/1Gio.dat
Resolving ovh.net (ovh.net)... 213.186.33.6
Connecting to ovh.net (ovh.net)|213.186.33.6|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1073741824 (1.0G) [application/octet-stream]
Saving to: `/dev/null'

100%[==================================================================================================>] 1,073,741,824  110M/s   in 9.5s    

2016-08-09 00:39:59 (107 MB/s) - `/dev/null' saved [1073741824/1073741824]

Dani
08-08-2016, 23:07
Hi

For the server network you can test this in a special environment located at:

Manager >> Server >> Boot >> Rescue-pro

There is a bandwidth test which will allow you to determine the server bandwidth.

Thanks

Danny

poiuty
08-08-2016, 14:16
OpenVZ node 149.202.198.39

Code:
wget http://ovh.net/files/1Gio.dat -O /dev/null
1% [>                                         ] 19,765,080   407K/s  eta 31m 47s
0% [                                          ] 1,569,282    532K/s
0% [                                          ] 360,202      231K/s
100%[========================================>] 1,073,741,824  112M/s   in 9.2s
100%[========================================>] 1,073,741,824  112M/s   in 9.2s
100%[========================================>] 1,073,741,824  112M/s   in 9.2s
0% [                                          ] 8,020,122    246K/s  eta 43m 7s
OpenVZ vps 178.32.144.123 (node 149.202.198.39)

Code:
wget http://ovh.net/files/1Gio.dat -O /dev/null
0% [                                          ] 6,566,330    668K/s  eta 30m 45s

KVM VM 51.254.108.34 (node 149.202.219.119)

Code:
wget http://ovh.net/files/1Gio.dat -O /dev/null
6% [====>                                     ] 71,674,312  1.45M/s  eta 7m 41s
KVM VM 51.254.108.33 (node 149.202.219.119)
Code:
wget http://ovh.net/files/1Gio.dat -O /dev/null
1% [>                                         ] 19,179,362   736K/s
KVM VM 151.80.92.206 (node 149.202.204.71)

Code:
wget http://ovh.net/files/1Gio.dat -O /dev/null
8%[==>                                        ]  83.21M   104MB/s

So when (this mtr) => slow network.
Code:
Host                                                                     Loss%   Snt   Last   Avg  Best  Wrst StDev
1. 149.202.219.253                                                        0.0%    22    0.9   1.4   0.8   3.3   0.7
2. po116.sbg-g1-a75.fr.eu                                                 0.0%    22    0.4   0.3   0.3   0.5   0.1
3. vl1250.rbx-g1-a75.fr.eu                                                4.5%    22    9.5   9.4   9.3   9.5   0.1
4. vl10.rbx-g3-a72.fr.eu                                                 13.6%    22    9.4   9.4   9.3   9.5   0.1
5. 10.21.50.6                                                             4.8%    21    9.6  37.7   9.4 172.7  55.1
6. ouaib.ovh.net                                                          9.5%    21    9.4   9.6   9.3  10.6   0.3
When (this mtr) => fast network.
Code:
Host                                                                     Loss%   Snt   Last   Avg  Best  Wrst StDev
1. 149.202.204.252                                                        0.0%     3    0.8   1.4   0.8   2.4   0.7
2. po115.sbg-g2-a75.fr.eu                                                 0.0%     3    0.3   0.3   0.3   0.3   0.0
3. vl1251.rbx-g2-a75.fr.eu                                                0.0%     3    9.3   9.3   9.3   9.4   0.0
4. vl10.rbx-g4-a72.fr.eu                                                  0.0%     3    9.4   9.3   9.3   9.4   0.0
5. 10.21.50.6                                                             0.0%     3    9.5   9.5   9.5   9.5   0.0
6. ouaib.ovh.net                                                          0.0%     2    9.3   9.4   9.3   9.5   0.0
Perhaps someone faced with the same problem.
How to fix it? (also open ticket 2985758260, but no answer yet)