[FoRK] Docker 1.0 was Re: OSX VMs/backup, Re: Dunning-Kruger effect discriminatory environs

Stephen D. Williams sdw at lig.net
Sat Jun 14 22:03:23 PDT 2014

On 6/14/14, 12:15 PM, J. Andrew Rogers wrote:
> On Jun 12, 2014, at 3:36 PM, Gregory Alan Bolcer <greg at bolcer.org> wrote:
>> It's extremely useful for some types of software.
>> On 6/12/2014 5:03 AM, Stephen Williams wrote:
>>> A container isn't a VM, even though it feels like it is.  Processes are
>>> running on the host OS natively.
> Roughly speaking, in terms of the types of software that will run and be well-behaved:
> bare metal > containers > virtual machines
> Containers will correctly run some code / algorithms that fail under VMs, so they are useful for that. The silicon actually behaves like native silicon.

Besides containers contesting for resources, what are some cases where containers have limitations or work poorly compared to bare 
metal host OS instances?  Considering that most apps are compute+memory+networking+storage (probably via a database connection), 
most device driver access shouldn't be an issue.


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