| [Solved] First slow ping on CTs [message #32084] |
Fri, 18 July 2008 19:06  |
ulver
Messages: 12
Registered: July 2008
|
Junior Member |
|
|
Hello everyone,
First, sorry for my bad english 
I have a little problem, and i don't understand.
When i ping a VEs, the first ping is very slow.
For example :
PING toto (192.168.1.1) 56(84) bytes of data.
64 bytes from toto (192.168.1.1): icmp_seq=1 ttl=64 time=718 ms
64 bytes from toto (192.168.1.1): icmp_seq=2 ttl=64 time=0.223 ms
64 bytes from toto (192.168.1.1): icmp_seq=3 ttl=64 time=0.284 ms
After, it is good for all pings. If i try few seconds later, it's ok, but after 5mn for example the first ping will be slow again.
When i try on a computer (not a VE), the first ping is often higher than the other, but not ~ 500ms or more (30 ms for example, and after 0.2ms)
I tried with venet device, veth device, and it's the same thing. I try on my local network and over the internet, idem.
With veth, when i erase the arp tables on the VE beetween each ping, the problem happens all time. Is it a clue ?
I use Debian :
Linux 2.6.18-12-fza-amd64 #1 SMP
I have no firewall/iptables on the VE or the HN.
I'd want to know 3 things :
- is it normal to have this ?
- is it possible to correct it ?
- does it affect the performance ? For example, on a web server ?
Thank you very much !
[Updated on: Wed, 30 July 2008 12:43] Report message to a moderator |
|
|
|
OpenVZ Forum
Members
Search
Help
Register
Login
Home
