search for: pageset

...> + > + /* > + * Establish a pointer reference back to the balloon device descriptor > + * this particular page->mapping will be servicing. > + * This is used by compaction / migration procedures to identify and > + * access the balloon device pageset while isolating / migrating pages. > + * > + * As some balloon drivers can register multiple balloon devices > + * for a single guest, this also helps compaction / migration to > + * properly deal with multiple balloon pagesets, when required. > + *...

...> + > + /* > + * Establish a pointer reference back to the balloon device descriptor > + * this particular page->mapping will be servicing. > + * This is used by compaction / migration procedures to identify and > + * access the balloon device pageset while isolating / migrating pages. > + * > + * As some balloon drivers can register multiple balloon devices > + * for a single guest, this also helps compaction / migration to > + * properly deal with multiple balloon pagesets, when required. > + *...

...gt;a_ops callback descriptor */ + mapping->a_ops = a_ops; + + /* + * Establish a pointer reference back to the balloon device descriptor + * this particular page->mapping will be servicing. + * This is used by compaction / migration procedures to identify and + * access the balloon device pageset while isolating / migrating pages. + * + * As some balloon drivers can register multiple balloon devices + * for a single guest, this also helps compaction / migration to + * properly deal with multiple balloon pagesets, when required. + */ + mapping->private_data = b_dev_info; + b_dev_info...

...gt;a_ops callback descriptor */ + mapping->a_ops = a_ops; + + /* + * Establish a pointer reference back to the balloon device descriptor + * this particular page->mapping will be servicing. + * This is used by compaction / migration procedures to identify and + * access the balloon device pageset while isolating / migrating pages. + * + * As some balloon drivers can register multiple balloon devices + * for a single guest, this also helps compaction / migration to + * properly deal with multiple balloon pagesets, when required. + */ + mapping->private_data = b_dev_info; + b_dev_info...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

...gt;a_ops callback descriptor */ + mapping->a_ops = a_ops; + + /* + * Establish a pointer reference back to the balloon device descriptor + * this particular page->mapping will be servicing. + * This is used by compaction / migration procedures to identify and + * access the balloon device pageset while isolating / migrating pages. + * + * As some balloon drivers can register multiple balloon devices + * for a single guest, this also helps compaction / migration to + * properly deal with multiple balloon pagesets, when required. + */ + mapping->private_data = b_dev_info; + b_dev_info...

...inux/compaction.h> > #include <linux/mmu_notifier.h> > > #include <asm/tlbflush.h> > @@ -76,7 +76,7 @@ int migrate_prep_local(void) > * from where they were once taken off for compaction/migration. > * > * This function shall be used whenever the isolated pageset has been > - * built from lru, balloon, hugetlbfs page. See isolate_migratepages_range() > + * built from lru, driver, hugetlbfs page. See isolate_migratepages_range() > * and isolate_huge_page(). > */ > void putback_movable_pages(struct list_head *l) > @@ -92,8 +92,8 @@ void...

...inux/compaction.h> > #include <linux/mmu_notifier.h> > > #include <asm/tlbflush.h> > @@ -76,7 +76,7 @@ int migrate_prep_local(void) > * from where they were once taken off for compaction/migration. > * > * This function shall be used whenever the isolated pageset has been > - * built from lru, balloon, hugetlbfs page. See isolate_migratepages_range() > + * built from lru, driver, hugetlbfs page. See isolate_migratepages_range() > * and isolate_huge_page(). > */ > void putback_movable_pages(struct list_head *l) > @@ -92,8 +92,8 @@ void...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

.../* >> + * Establish a pointer reference back to the balloon device descriptor >> + * this particular page->mapping will be servicing. >> + * This is used by compaction / migration procedures to identify and >> + * access the balloon device pageset while isolating / migrating pages. >> + * >> + * As some balloon drivers can register multiple balloon devices >> + * for a single guest, this also helps compaction / migration to >> + * properly deal with multiple balloon pagesets, when required....

...; + mapping->a_ops = a_ops; > + > + /* > + * Establish a pointer reference back to the balloon device descriptor > + * this particular page->mapping will be servicing. > + * This is used by compaction / migration procedures to identify and > + * access the balloon device pageset while isolating / migrating pages. > + * > + * As some balloon drivers can register multiple balloon devices > + * for a single guest, this also helps compaction / migration to > + * properly deal with multiple balloon pagesets, when required. > + */ > + mapping->private_d...

Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for zram. I found that many pages of GPU driver

Hello, This series try to enable migration of non-LRU pages, such as driver's page. My ARM-based platform occured severe fragmentation problem after long-term (several days) test. Sometimes even order-3 page allocation failed. It has memory size 512MB ~ 1024MB. 30% ~ 40% memory is consumed for graphic processing and 20~30 memory is reserved for zram. I found that many pages of GPU driver

..._compaction.h> +#include <linux/compaction.h> #include <linux/mmu_notifier.h> #include <asm/tlbflush.h> @@ -76,7 +76,7 @@ int migrate_prep_local(void) * from where they were once taken off for compaction/migration. * * This function shall be used whenever the isolated pageset has been - * built from lru, balloon, hugetlbfs page. See isolate_migratepages_range() + * built from lru, driver, hugetlbfs page. See isolate_migratepages_range() * and isolate_huge_page(). */ void putback_movable_pages(struct list_head *l) @@ -92,8 +92,8 @@ void putback_movable_pages(struct...

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge

Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be used within a guest, thus imposing performance penalties associated with the reduced number of transparent huge pages that could be used by the guest workload. This patch-set follows the main idea discussed at 2012 LSFMMS session: "Ballooning for transparent huge