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

[ning ji <ni...@ho...>]

Thanks for the info, that's a great help.
BTW,
1. when i change "mem=128M" to "mem=64M", seems it didn't help, still uses the same amount of /dev/shm.    why ?
2. Where did you learn the /dev/shm info for uml ? 
Have a nice day !

> Date: Sun, 11 Dec 2011 03:20:44 -0600
> Subject: Re: [uml-user] The max instance of uml is limited by memory and disk size ?
> From: cl...@cl...
> To: ni...@ho...
> CC: use...@li...
> 
> 
> 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.
> 
> 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 !
> >
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