Re: [uml-user] The max instance of uml is limited by memory and disk size ?

[<cl...@cl...>]

I do not know exactly how much shm is taken in that case, just try
to launch the uml it an see the percent taken from shm.
UML has to have shm, this is all I know.


> cl...@cl... wrote:
>>
>> Hello,
>> For UML machines, you have to look carefully at the /dev/shm value with
>> df, if the used up /dev/shm gets too high, new UML cannot be launched.
>
> Excuse a newbie question, but if I understand correctly your statement,
> then the following:
>
> host@:~# df -h
> Filesystem      Size  Used Avail Use% Mounted on
> /dev/root       183G   15G  159G   9% /
> tmpfs           119M     0  119M   0% /dev/shm
>
> implies that the maximum memory a single UML instance can have is 119MB?
> As in:
>
> ./linux ubda=root_fs mem=119MB
>
> Thank you for your time,
> -Stathis
>
>>
>> To look at the value you have:
>>   df -h /dev/shm/
>>
>> To change it to 2 giga:
>>   mount -t tmpfs shmfs -o size=2g /dev/shm
>>
>> Look again:
>>    df -h /dev/shm/
>>
>>
>>
>>
>>
>>>
>>> Hi all,
>>> when i run 60 umls in the same host with "mem=128M""free -m" says
>>> almost
>>> no free memory left.
>>> if i run more, all umls got killed.
>>> Now if i run uml with "mem=64M", was trying to run 100 umls, but still
>>> got
>>> terminated.Why ?
>>> (our goal is to run 200 umls in each host, 4GB memory each host.)(Also
>>> disk size is big enough, each rootfs is 0.1 G, 100 of umls is 10G)
>>> Thanks !
>>>
>>>  		 	   		  ------------------------------------------------------------------------------
>>> Learn Windows Azure Live!  Tuesday, Dec 13, 2011
>>> Microsoft is holding a special Learn Windows Azure training event for
>>> developers. It will provide a great way to learn Windows Azure and what
>>> it
>>> provides. You can attend the event by watching it streamed LIVE online.
>>> Learn more at
>>> http://p.sf.net/sfu/ms-windowsazure_______________________________________________
>>> User-mode-linux-user mailing list
>>> Use...@li...
>>> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> Learn Windows Azure Live!  Tuesday, Dec 13, 2011
>> Microsoft is holding a special Learn Windows Azure training event for
>> developers. It will provide a great way to learn Windows Azure and what
>> it
>> provides. You can attend the event by watching it streamed LIVE online.
>> Learn more at http://p.sf.net/sfu/ms-windowsazure
>> _______________________________________________
>> User-mode-linux-user mailing list
>> Use...@li...
>> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
>>
>
>
>
> ------------------------------------------------------------------------------
> Learn Windows Azure Live!  Tuesday, Dec 13, 2011
> Microsoft is holding a special Learn Windows Azure training event for
> developers. It will provide a great way to learn Windows Azure and what it
> provides. You can attend the event by watching it streamed LIVE online.
> Learn more at http://p.sf.net/sfu/ms-windowsazure
> _______________________________________________
> User-mode-linux-user mailing list
> Use...@li...
> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
>