OpenVZ Forum: Support » Weird performance problem

Home » General » Support » Weird performance problem

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Weird performance problem [message #35857 is a reply to message #35785]

Tue, 28 April 2009 11:34

maratrus
Messages: 1495
Registered: August 2007
Location: Moscow

Senior Member

Hello,

what kernel do you use?

So, the provided vmstat output show that CPU is idle.
The only thing I can assume for now is that somebody disables interrupts and thus "missed * ticks" messages appeared and network packets handling is delayed.
Do you have any assumptions?
BTW, does "service vz stop" resolve the problem or the problem takes place when vz service is stopped?

It may be useful to gather alt-sysrq-* outputs:
Alt-SysRQ-
1) "m" - for memory info dump
2) "p" - for registers - several times, please, twice the number of CPUs
3) "a" - for scheduler stat - 3 times
4) "w" - another scheduler info - 3 times
5) "t" - for all processes calltraces. Warning - this is a resource consuming operation. At least - twice.

Report message to a moderator

[Message index]

		Weird performance problem By: ugob on Wed, 22 April 2009 12:27
		Re: Weird performance problem By: maratrus on Tue, 28 April 2009 11:34
		Re: Weird performance problem By: ugob on Tue, 28 April 2009 12:53
		Re: Weird performance problem By: ugob on Tue, 28 April 2009 12:55

Previous Topic:	How to mount loop device
Next Topic:	Which template for Debian 5.0 including X

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Nov 06 13:55:50 GMT 2025

Total time taken to generate the page: 0.09669 seconds