[Users] Question About /proc file system in VMs.
neyshule at gmail.com
Wed Aug 3 13:42:59 EDT 2011
*Thanks for your reply Dobrev. my bad, I think I made it a little
*For example: I have a chunk of memory in kernel for every VMs by MMAP
(every VM has a corresponding area of memory in kernel using MMAP), and
kernel may copy some data to this area of memory for each VM.*
*The question is: how can I check the speed of this copy??Can I write a
/proc like virtual file system???
2011/8/3 Martin Dobrev <martin at dobrev.eu>
> I'm not quite sure what you want to do, but each CT has it's own virtual
> /proc. If you check for example the traffic of the veth/venet interface
> inside a CT you'll see only the information for the particular CT. Or you
> want to have a module showing information for all CTs?
> §¯§Ñ 3.8.2011 §Ô. 18:10 §é., shule ney §ß§Ñ§á§Ú§ã§Ñ:
> Thanks very much vagin£¬I have access to CT0, I want to have a module to
> monitor different VM's traffic, and each VM can see its own traffic insdie,
> is it possible?
> 2011/8/3 Andrew Vagin <avagin at gmail.com>
>> On 08/03/2011 03:42 AM, shule ney wrote:
>>> *Hi, all:*
>>> *I'm wondering if I can write and execute virtual file system like /proc
>>> in OpenVz VMs. For example , write a module to check the incoming traffic
>>> rate of this VM and show it in this VM's /proc as a file. I know different
>>> VMs share one kernel, is it possible??? Thanks very much guys.*
>> Yes. It's possible. You can write file system as module, load it from host
>> (CT0) and mount your file system from CT.
>> And you can't do that, if you have access to CT only.
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