search for: start_zone

...linux/mm.h @@ -1764,6 +1764,9 @@ extern void free_area_init(unsigned long * zones_size); extern void free_area_init_node(int nid, unsigned long * zones_size, unsigned long zone_start_pfn, unsigned long *zholes_size); extern void free_initmem(void); +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/pag...

...e/linux/mm.h @@ -1764,6 +1764,9 @@ extern void free_area_init(unsigned long * zones_size); extern void free_area_init_node(int nid, unsigned long * zones_size, unsigned long zone_start_pfn, unsigned long *zholes_size); extern void free_initmem(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_a...

...w: > + * -------------------------------------- > + * | Base (52-bit) | Rsvd (12-bit) | > + * -------------------------------------- > + * -------------------------------------- > + * | Size (52-bit) | Rsvd (12-bit) | > + * -------------------------------------- > + * > + * @start_zone: zone to start the record operation. > + * @order: order of the free page list to record. > + * @buf: buffer to record the unused page info in chunks. > + * @size: size of the buffer in __le64 to record > + * @offset: offset in the buffer to record. > + * @part_fill: indicate if part...

...w: > + * -------------------------------------- > + * | Base (52-bit) | Rsvd (12-bit) | > + * -------------------------------------- > + * -------------------------------------- > + * | Size (52-bit) | Rsvd (12-bit) | > + * -------------------------------------- > + * > + * @start_zone: zone to start the record operation. > + * @order: order of the free page list to record. > + * @buf: buffer to record the unused page info in chunks. > + * @size: size of the buffer in __le64 to record > + * @offset: offset in the buffer to record. > + * @part_fill: indicate if part...

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)

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use {pfn|length} to present the page information instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use {pfn|length} to present the page information instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.

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

...---------------------- >> + * | Base (52-bit) | Rsvd (12-bit) | >> + * -------------------------------------- >> + * -------------------------------------- >> + * | Size (52-bit) | Rsvd (12-bit) | >> + * -------------------------------------- >> + * >> + * @start_zone: zone to start the record operation. >> + * @order: order of the free page list to record. >> + * @buf: buffer to record the unused page info in chunks. >> + * @size: size of the buffer in __le64 to record >> + * @offset: offset in the buffer to record. >> + * @part_fi...

...| Base (52-bit) | Rsvd (12-bit) | > > > + * -------------------------------------- > > > + * -------------------------------------- > > > + * | Size (52-bit) | Rsvd (12-bit) | > > > + * -------------------------------------- > > > + * > > > + * @start_zone: zone to start the record operation. > > > + * @order: order of the free page list to record. > > > + * @buf: buffer to record the unused page info in chunks. > > > + * @size: size of the buffer in __le64 to record > > > + * @offset: offset in the buffer to recor...

...| Base (52-bit) | Rsvd (12-bit) | > > > + * -------------------------------------- > > > + * -------------------------------------- > > > + * | Size (52-bit) | Rsvd (12-bit) | > > > + * -------------------------------------- > > > + * > > > + * @start_zone: zone to start the record operation. > > > + * @order: order of the free page list to record. > > > + * @buf: buffer to record the unused page info in chunks. > > > + * @size: size of the buffer in __le64 to record > > > + * @offset: offset in the buffer to recor...