search for: f3e0c69

...ree_initmem(void); +extern int inquire_unused_page_block(struct zone *zone, unsigned int order, + unsigned int migratetype, + struct page **page); /* * Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f3e0c69..fa8203f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4498,6 +4498,93 @@ void show_free_areas(unsigned int filter) show_swap_cache_info(); } +/** + * Heuristically get a page block in the system that is unused. + * It is possible that pages from the page block are used immediately af...

...; +extern int record_unused_pages(struct zone **start_zone, int order, + __le64 *pages, unsigned int size, + unsigned int *pos, bool part_fill); /* * Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f3e0c69..b72a7ac 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4498,6 +4498,120 @@ void show_free_areas(unsigned int filter) show_swap_cache_info(); } +static int __record_unused_pages(struct zone *zone, int order, + __le64 *buf, unsigned int size, + unsigned int *offset, bool part_fi...

...void); +extern int mark_unused_pages(struct zone **start_zone, int order, + __le64 *pages, unsigned int size, unsigned int *pos, + u8 len_bits, bool part_fill); /* * Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index f3e0c69..f0573b1 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4498,6 +4498,126 @@ void show_free_areas(unsigned int filter) show_swap_cache_info(); } +static int __mark_unused_pages(struct zone *zone, int order, + __le64 *pages, unsigned int size, unsigned int *pos, + u8 len_bits, bool par...

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please read each patch commit log for details. Changes: v7->v8: 1) Use only one chunk format, instead of two. 2) re-write the virtio-balloon implementation patch. 3) commit changes 4)

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please read each patch commit log for details. Changes: v7->v8: 1) Use only one chunk format, instead of two. 2) re-write the virtio-balloon implementation patch. 3) commit changes 4)

Take over this work from Liang. This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 1) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please check patch 0003 for more details about optimization 1). For an idle guest with 8GB RAM, optimization 2) can help shorten the total live migration

Take over this work from Liang. This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 1) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please check patch 0003 for more details about optimization 1). For an idle guest with 8GB RAM, optimization 2) can help shorten the total live migration

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler

This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Changes: v8->v9: 1) Split the two new features, VIRTIO_BALLOON_F_BALLOON_CHUNKS and VIRTIO_BALLOON_F_MISC_VQ, which were mixed together in the previous implementation; 2) Simpler