Hi Shaohua,
On Fri, Feb 10, 2017 at 09:30:09AM -0800, Shaohua Li wrote:
< snip >
> > > +static inline bool page_is_lazyfree(struct page *page)
> > > +{
> > > + return PageAnon(page) && !PageSwapBacked(page);
> > > +}
> > > +
> >
> > trivial:
> >
> > How about using PageLazyFree for
Hi Shaohua,
On Fri, Feb 10, 2017 at 09:30:09AM -0800, Shaohua Li wrote:
< snip >
> > > +static inline bool page_is_lazyfree(struct page *page)
> > > +{
> > > + return PageAnon(page) && !PageSwapBacked(page);
> > > +}
> > > +
> >
> > trivial:
> >
> > How about using PageLazyFree for
On Fri, Feb 10, 2017 at 02:02:36PM +0100, Michal Hocko wrote:
> On Fri 03-02-17 15:33:18, Shaohua Li wrote:
> > Userspace indicates MADV_FREE pages could be freed without pageout, so
> > it pretty much likes used once file pages. For such pages, we'd like to
> > reclaim them once there is memory
On Fri, Feb 10, 2017 at 02:02:36PM +0100, Michal Hocko wrote:
> On Fri 03-02-17 15:33:18, Shaohua Li wrote:
> > Userspace indicates MADV_FREE pages could be freed without pageout, so
> > it pretty much likes used once file pages. For such pages, we'd like to
> > reclaim them once there is memory
On Fri, Feb 10, 2017 at 03:50:22PM +0900, Minchan Kim wrote:
> Hi Shaohua,
Thanks for your time!
> On Fri, Feb 03, 2017 at 03:33:18PM -0800, Shaohua Li wrote:
> > Userspace indicates MADV_FREE pages could be freed without pageout, so
> > it pretty much likes used once file pages. For such
On Fri, Feb 10, 2017 at 03:50:22PM +0900, Minchan Kim wrote:
> Hi Shaohua,
Thanks for your time!
> On Fri, Feb 03, 2017 at 03:33:18PM -0800, Shaohua Li wrote:
> > Userspace indicates MADV_FREE pages could be freed without pageout, so
> > it pretty much likes used once file pages. For such
On Fri 03-02-17 15:33:18, Shaohua Li wrote:
> Userspace indicates MADV_FREE pages could be freed without pageout, so
> it pretty much likes used once file pages. For such pages, we'd like to
> reclaim them once there is memory pressure. Also it might be unfair
> reclaiming MADV_FREE pages always
On Fri 03-02-17 15:33:18, Shaohua Li wrote:
> Userspace indicates MADV_FREE pages could be freed without pageout, so
> it pretty much likes used once file pages. For such pages, we'd like to
> reclaim them once there is memory pressure. Also it might be unfair
> reclaiming MADV_FREE pages always
Hi Shaohua,
On Fri, Feb 03, 2017 at 03:33:18PM -0800, Shaohua Li wrote:
> Userspace indicates MADV_FREE pages could be freed without pageout, so
> it pretty much likes used once file pages. For such pages, we'd like to
> reclaim them once there is memory pressure. Also it might be unfair
>
Hi Shaohua,
On Fri, Feb 03, 2017 at 03:33:18PM -0800, Shaohua Li wrote:
> Userspace indicates MADV_FREE pages could be freed without pageout, so
> it pretty much likes used once file pages. For such pages, we'd like to
> reclaim them once there is memory pressure. Also it might be unfair
>
On February 04, 2017 2:38 PM Hillf Danton wrote:
>
> On February 04, 2017 7:33 AM Shaohua Li wrote:
> > @@ -1404,6 +1401,8 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb,
> > struct vm_area_struct *vma,
> > set_pmd_at(mm, addr, pmd, orig_pmd);
> >
On February 04, 2017 2:38 PM Hillf Danton wrote:
>
> On February 04, 2017 7:33 AM Shaohua Li wrote:
> > @@ -1404,6 +1401,8 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb,
> > struct vm_area_struct *vma,
> > set_pmd_at(mm, addr, pmd, orig_pmd);
> >
On February 04, 2017 7:33 AM Shaohua Li wrote:
> @@ -1404,6 +1401,8 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb,
> struct vm_area_struct *vma,
> set_pmd_at(mm, addr, pmd, orig_pmd);
> tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
> }
> +
> +
On February 04, 2017 7:33 AM Shaohua Li wrote:
> @@ -1404,6 +1401,8 @@ bool madvise_free_huge_pmd(struct mmu_gather *tlb,
> struct vm_area_struct *vma,
> set_pmd_at(mm, addr, pmd, orig_pmd);
> tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
> }
> +
> +
Userspace indicates MADV_FREE pages could be freed without pageout, so
it pretty much likes used once file pages. For such pages, we'd like to
reclaim them once there is memory pressure. Also it might be unfair
reclaiming MADV_FREE pages always before used once file pages and we
definitively want
Userspace indicates MADV_FREE pages could be freed without pageout, so
it pretty much likes used once file pages. For such pages, we'd like to
reclaim them once there is memory pressure. Also it might be unfair
reclaiming MADV_FREE pages always before used once file pages and we
definitively want
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