| Replatform Debian 6 => CentOS 6.4 - major performance drop [message #49204] |
Mon, 08 April 2013 20:08 |
tdrnetworks
Messages: 3
Registered: April 2013
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Junior Member |
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Hey,
I wonder if anyone can help, I've first of all hit this bug:
Search bugzilla for: 2554
and have had to revert to an earlier OpenVZ kernel, but my containers since switching from Debian 6 to CentOS have started requiring large amounts of CPU. The graph attached explains it better:
To the left is Debian
To the right is the host redone with CentOS
The guest contain blue is Debian also - is there a performance overhead when virtualising Debian on CentOS? Can anyone else give an indication as to why the contain effectively needs twice the resources since the migration.
I would desperately like to stay on CentOS to get the upstream updates as Debian is seriously lacking, but the performance is ab-missal and on production people are noticing the performance drop!
Any suggestions would be greatly appreciated.
Currently using - 2.6.32-042stab053.5
Have tried using - 2.6.32-042stab077.3
It would appear the system is busy with user requests - but a top within the system seems to indicate, it's not the container making the system incredibly busy:
Thanks,
Keith
[Updated on: Mon, 08 April 2013 20:18] Report message to a moderator |
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