On Thu, Oct 05, 2017 at 10:38:29AM +0530, Anshuman Khandual wrote: > On 10/04/2017 10:06 PM, Kirill A. Shutemov wrote: > > This patch switches page table accounting to single counter from > > three -- nr_ptes, nr_pmds and nr_puds. > > > > mm->pgtables_bytes is now used to account page table levels. We use > > bytes, because page table size for different levels of page table tree > > may be different. > > > > The change has user-visible effect: we don't have VmPMD and VmPUD > > reported in /proc/[pid]/status. Not sure if anybody uses them. > > (As alternative, we can always report 0 kB for them.) > > > > OOM-killer report is also slightly changed: we now report pgtables_bytes > > instead of nr_ptes, nr_pmd, nr_puds. > > Could you please mention the motivation of doing this ? Why we are > consolidating the counters which also changes /proc/ interface as > well as OOM report ? What is the benefit ? Sure, I'll update description. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
