| Re: large memory server (32GB) :: 64bit kernel advantageous? [message #15763 is a reply to message #15759] |
Sat, 11 August 2007 08:30  |
vaverin
Messages: 708
Registered: September 2005
|
Senior Member |
|
|
Hi Rick,
In general we can recommend to use 64-bit kernel for 32-bit-only VEs.
You really should have some performance benefits (I heard about ~20%, but of course it depends on usage scernario).
However you will have some drawbacks too:
- memory consumption overhead. Pointers in _kernel_ structures will be 64-bit now vs 32-bit on 32-bit kernels. I.e. kmemsize on true 32-bit kernels and on 64-bit kernels can vary.
- you have some risk to find some new issue in 32-bit compat layer on 64-bit kernels. This chance is really very low but it is a greater than one to find some new bug on plain 32-bit kernels.
thank you,
Vasily Averin
|
|
|
|
OpenVZ Forum
Members
Search
Help
Register
Login
Home
