On Wed, Oct 30, 2013 at 7:25 PM, Prarit Bhargava <prarit(a)redhat.com> wrote:
On 10/30/2013 02:10 PM, Simo Sorce wrote:
> On Wed, 2013-10-30 at 10:51 -0700, David Strauss wrote:
>> On Wed, Oct 30, 2013 at 10:09 AM, Josh Boyer <jwboyer(a)fedoraproject.org>
wrote:
>>> Massive 4096 multi-cored CPU machines with terabytes of DRAM and
>>> petabytes of storage, or more commodity style hardware used in
>>> heterogeneous environments, etc.
>>
>> The latter. We'd want a separate HPC group for 512+ core machines.
>
> Or simply, sites so big can care for their own kernel builds most
> probably, or seek for commercial support.
Why limit it so low? If we're thinking about going big, well, GO BIG.
Users of Fedora want to support these systems out-of-the-box so they can get an
idea if their systems work. Stopping at 512 just seems too low these days.
We're talking about saving a very small amount of memory by not going to 4096 ..
Remind me how much again? IIRC, it was around 2MB additional runtime
overhead to set MAX_CPUS to that, right? That's very small on
servers, not so small on cloud.
josh