Messages in this thread | | | From | Qian Cai <> | Subject | Re: [PATCH] mm/vmstat: Reduce zone lock hold time when reading /proc/pagetypeinfo | Date | Thu, 24 Oct 2019 07:11:52 -0400 |
| |
> On Oct 24, 2019, at 3:42 AM, Michal Hocko <mhocko@kernel.org> wrote: > > It's been useful for debugging memory fragmentation problems and we do > not have anything that would provide a similar information. Considering
Actually, zoneinfo and buddyinfo are somewhat similar to it. Why the extra information in pagetypeinfo is still useful in debugging today’s real-world scenarios?
> that making it root only is trivial and reducing the lock hold times > likewise I do not really see any strong reason to dump it at this > moment.
There is no need to hurry this, and clearly this is rather a good opportunity to discuss the consolidation of memory fragmentation debugging to ease the maintenance in long term.
| |