Messages in this thread | | | Date | Tue, 13 Feb 2018 17:14:32 -0800 | From | Andrew Morton <> | Subject | Re: [patch 1/2] mm, page_alloc: extend kernelcore and movablecore for percent |
| |
On Tue, 13 Feb 2018 15:55:11 -0800 (PST) David Rientjes <rientjes@google.com> wrote:
> > > > Is this fine-grained enough? We've had percentage-based tunables in > > the past, and 10 years later when systems are vastly larger, 1% is too > > much. > > > > They still have the (current) ability to define the exact amount of bytes > down to page sized granularity, whereas 1% would yield 40GB on a 4TB > system. I'm not sure that people will want any finer-grained control if > defining the proportion of the system for kernelcore. They do have the > ability with the existing interface, though, if they want to be that > precise. > > (This is a cop out for not implementing some fractional percentage parser, > although that would be possible as a more complete solution.)
And the interface which you've proposed can be seamlessly extended to accept 0.07%, so not a problem.
| |