Re: Scalability Question

[Richard Weinberger]

On Sat, Jul 5, 2014 at 5:33 AM, Nick Krause <xerofoify@xxxxxxxxx> wrote:
> The most powerful super computer runs Ubuntu with over 3.2 million cores.

These kind of computers don't run a single kernel.
See grid computing.

> There fore I can state that Linux is very good at scaling as I have seem
> the other side with embedded systems.
> Cheers Nick
>
> On Fri, Jul 4, 2014 at 11:24 PM, Mike Galbraith
> <umgwanakikbuti@xxxxxxxxx> wrote:
>> On Fri, 2014-07-04 at 16:40 -0400, Nick Krause wrote:
>>> I am curious after reading some outdated kernel papers, how scalable
>>> is the kernel of
>>> late? I am curious mostly in memory and cpu subsystems as file systems
>>> will change
>>> based on user's choice.
>>
>> You can currently configure for up to 8192 CPUs.  I've not seen any
>> benchmark data whatsoever for huge boxen, have no idea where which
>> subsystem crumbles.  SGI asked for the increase to 8192, so presumably
>> do manage to squeeze acceptable performance out of size XXXXL boxen.
>>
>> -Mike
>>
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-- 
Thanks,
//richard
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