| Question About /proc file system in VMs. [message #43164] |
Tue, 02 August 2011 23:42  |
shule ney
Messages: 17
Registered: March 2011
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Junior Member |
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*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.*
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| Re: Question About /proc file system in VMs. [message #43176 is a reply to message #43167] |
Wed, 03 August 2011 15:10  |
shule ney
Messages: 17
Registered: March 2011
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Junior Member |
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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@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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>> Users mailing list
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> Users@openvz.org
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| Re: Question About /proc file system in VMs. [message #43178 is a reply to message #43176] |
Wed, 03 August 2011 16:37 |
Martin Dobrev
Messages: 14
Registered: November 2006
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Junior Member |
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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?
?? 3.8.2011 ?. 18:10 ?., shule ney ??????:
>
> 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@gmail.com <mailto:avagin@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.
>
>
>
> _______________________________________________
> Users mailing list
> Users@openvz.org <mailto:Users@openvz.org>
> https://openvz.org/mailman/listinfo/users
>
>
> _______________________________________________
> Users mailing list
> Users@openvz.org <mailto:Users@openvz.org>
> https://openvz.org/mailman/listinfo/users
>
>
>
>
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| Re: Question About /proc file system in VMs. [message #43179 is a reply to message #43178] |
Wed, 03 August 2011 17:42 |
shule ney
Messages: 17
Registered: March 2011
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Junior Member |
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*Thanks for your reply Dobrev. my bad, I think I made it a little
confusing. *
*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@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?
>
> На 3.8.2011 г. 18:10 ч., shule ney написа:
>
>
> 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@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.
>>
>>
>>>
> _______________________________________________
> Users mailing listUsers@openvz.orghttps://openvz.org/mailman/listinfo/user s
>
>
>
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