data structures through ->private_data.
Also, all users of old ->assoc_mapping element are converted to reflect
its new name and type change (->private_data).
Signed-off-by: Rafael Aquini
---
fs/buffer.c| 12 ++--
fs/gfs2/glock.c| 2 +-
fs/inode.c | 2 +-
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini
---
include/linux/balloon_compaction.h | 7 +++
include/linux/vm_event_item.h | 7 ++-
mm/balloon_compaction.c| 2 ++
mm/migrate.c
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini
Acked-by: Mel Gorman
---
mm
17
Compaction stalls 747 499
Compaction success 244 145
Compaction failures 503 354
Compaction pages moved 370888 474837
Compaction move failure 77378 65259
===END stress-highalloc
Rafael Aquini (7)
providing protection against concurrent access
introduced by parallel memory migration threads.
- balloon_lock (mutex) : synchronizes the access demand to elements of
struct virtio_balloon and its queue operations;
Signed-off-by: Rafael Aquini
Acked-by: Michael S. Tsirkin
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini
Acked-by: Mel Gorman
---
include/linux/balloon_compaction.h | 256
This patch introduces MIGRATEPAGE_SUCCESS as the default return code
for address_space_operations.migratepage() method and documents the
expected return code for the same method in failure cases.
Signed-off-by: Rafael Aquini
---
fs/hugetlbfs/inode.c| 4 ++--
include/linux/migrate.h | 7
This patch introduces MIGRATEPAGE_SUCCESS as the default return code
for address_space_operations.migratepage() method and documents the
expected return code for the same method in failure cases.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
fs/hugetlbfs/inode.c| 4 ++--
include/linux
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini aqu...@redhat.com
Acked-by: Mel Gorman m...@csn.ul.ie
---
include
providing protection against concurrent access
introduced by parallel memory migration threads.
- balloon_lock (mutex) : synchronizes the access demand to elements of
struct virtio_balloon and its queue operations;
Signed-off-by: Rafael Aquini aqu...@redhat.com
Acked-by: Michael
747 499
Compaction success 244 145
Compaction failures 503 354
Compaction pages moved 370888 474837
Compaction move failure 77378 65259
===END stress-highalloc
Rafael Aquini (7):
mm: adjust
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
Acked-by: Mel
putback_movable_pages() to properly cope with cases where the isolated
pageset contains ballooned pages and LRU pages, thus fixing the mentioned
inelegant hack around putback_lru_pages().
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/migrate.h | 2 ++
mm/compaction.c
data structures through -private_data.
Also, all users of old -assoc_mapping element are converted to reflect
its new name and type change (-private_data).
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
fs/buffer.c| 12 ++--
fs/gfs2/glock.c| 2 +-
fs/inode.c | 2
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/balloon_compaction.h | 7 +++
include/linux/vm_event_item.h | 7 ++-
mm/balloon_compaction.c| 2
On Sun, Nov 11, 2012 at 05:01:13PM -0200, Rafael Aquini wrote:
Change log:
v12:
* Address last suggestions on sorting the barriers usage out (Mel
Gorman);
* Fix reported build breakages for CONFIG_BALLOON_COMPACTION=n (Andrew
Morton);
* Enhance commentary on the locking scheme
On Sat, Nov 10, 2012 at 05:55:38PM +0200, Michael S. Tsirkin wrote:
mutex_unlock(vb-balloon_lock);
+ balloon_event_count(COMPACTBALLOONMIGRATED);
return MIGRATEPAGE_BALLOON_SUCCESS;
}
Looks like any ballon would need to do this.
Can this chunk go into caller instead?
On Fri, Nov 09, 2012 at 04:23:27PM +, Mel Gorman wrote:
> On Fri, Nov 09, 2012 at 12:53:22PM -0200, Rafael Aquini wrote:
> > >
> > > If you get the barrier issue sorted out then feel free to add
> > >
> > > Acked-by: Mel Gorman
> > >
&
On Fri, Nov 09, 2012 at 12:20:33PM +, Mel Gorman wrote:
> On Wed, Nov 07, 2012 at 01:05:54AM -0200, Rafael Aquini wrote:
> > This patch introduces a new set of vm event counters to keep track of
> > ballooned pages compaction activity.
> >
> > Signed-off-by: Raf
On Fri, Nov 09, 2012 at 12:11:33PM +, Mel Gorman wrote:
> > +/*
> > + * balloon_page_insert - insert a page into the balloon's page list and
> > make
> > + * the page->mapping assignment accordingly.
> > + * @page: page to be assigned as a 'balloon page'
> > + * @mapping
On Fri, Nov 09, 2012 at 12:11:33PM +, Mel Gorman wrote:
+/*
+ * balloon_page_insert - insert a page into the balloon's page list and
make
+ * the page-mapping assignment accordingly.
+ * @page: page to be assigned as a 'balloon page'
+ * @mapping : allocated
On Fri, Nov 09, 2012 at 12:20:33PM +, Mel Gorman wrote:
On Wed, Nov 07, 2012 at 01:05:54AM -0200, Rafael Aquini wrote:
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini aqu...@redhat.com
Other
On Fri, Nov 09, 2012 at 04:23:27PM +, Mel Gorman wrote:
On Fri, Nov 09, 2012 at 12:53:22PM -0200, Rafael Aquini wrote:
SNIP
If you get the barrier issue sorted out then feel free to add
Acked-by: Mel Gorman m...@csn.ul.ie
I believe we can drop the barriers stuff
On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
> The first one can be delayed, the second one can be delayed if the host
> didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
>
> We could implement a proper request queue for these, and return -EAGAIN
> if the queue
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
> On Thu, 08 Nov 2012 09:32:18 +1030
> Rusty Russell wrote:
>
> > Rafael Aquini writes:
> > > + * virtballoon_migratepage - perform the balloon page migration on
> > > behalf of
> > >
On Wed, Nov 07, 2012 at 11:58:10AM -0800, Andrew Morton wrote:
> On Wed, 7 Nov 2012 01:05:52 -0200
> Rafael Aquini wrote:
>
> > Memory fragmentation introduced by ballooning might reduce significantly
> > the number of 2MB contiguous memory blocks that can be used wit
On Wed, Nov 07, 2012 at 11:56:10AM -0800, Andrew Morton wrote:
> On Wed, 7 Nov 2012 01:05:48 -0200
> Rafael Aquini wrote:
>
> > This patch introduces MIGRATEPAGE_SUCCESS as the default return code
> > for address_space_operations.migratepage() method and documents the
>
On Wed, Nov 07, 2012 at 01:02:07PM -0800, Andrew Morton wrote:
> On Wed, 7 Nov 2012 01:05:50 -0200
> Rafael Aquini wrote:
>
> > Memory fragmentation introduced by ballooning might reduce significantly
> > the number of 2MB contiguous memory blocks that can be used wit
On Wed, Nov 07, 2012 at 01:02:07PM -0800, Andrew Morton wrote:
On Wed, 7 Nov 2012 01:05:50 -0200
Rafael Aquini aqu...@redhat.com wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest
On Wed, Nov 07, 2012 at 11:56:10AM -0800, Andrew Morton wrote:
On Wed, 7 Nov 2012 01:05:48 -0200
Rafael Aquini aqu...@redhat.com wrote:
This patch introduces MIGRATEPAGE_SUCCESS as the default return code
for address_space_operations.migratepage() method and documents the
expected
On Wed, Nov 07, 2012 at 11:58:10AM -0800, Andrew Morton wrote:
On Wed, 7 Nov 2012 01:05:52 -0200
Rafael Aquini aqu...@redhat.com wrote:
Memory fragmentation introduced by ballooning might reduce significantly
the number of 2MB contiguous memory blocks that can be used within a guest
On Wed, Nov 07, 2012 at 04:11:46PM -0800, Andrew Morton wrote:
On Thu, 08 Nov 2012 09:32:18 +1030
Rusty Russell ru...@rustcorp.com.au wrote:
Rafael Aquini aqu...@redhat.com writes:
+ * virtballoon_migratepage - perform the balloon page migration on
behalf
On Thu, Nov 08, 2012 at 09:32:18AM +1030, Rusty Russell wrote:
The first one can be delayed, the second one can be delayed if the host
didn't ask for VIRTIO_BALLOON_F_MUST_TELL_HOST (qemu doesn't).
We could implement a proper request queue for these, and return -EAGAIN
if the queue fills.
17
Compaction stalls 747 499
Compaction success 244 145
Compaction failures 503 354
Compaction pages moved 370888 474837
Compaction move failure 77378 65259
===END stress-highalloc
Rafael Aquini (7)
data structures through ->private_data.
Also, all users of old ->assoc_mapping element are converted to reflect
its new name and type change.
Signed-off-by: Rafael Aquini
---
fs/buffer.c| 12 ++--
fs/gfs2/glock.c| 2 +-
fs/inode.c | 2 +-
fs/nilfs2/page.c
this patch introduces
putback_movable_pages() to properly cope with cases where the isolated
pageset contains ballooned pages and LRU pages, thus fixing the mentioned
inelegant hack around putback_lru_pages().
Signed-off-by: Rafael Aquini
---
include/linux/migrate.h | 2 ++
mm/compaction.c | 6
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini
---
include/linux/balloon_compaction.h | 220
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 8 +++-
mm/balloon_compaction.c | 2 ++
mm/migrate.c
providing protection against concurrent access
introduced by parallel memory migration threads.
- balloon_lock (mutex) : synchronizes the access demand to elements of
struct virtio_balloon and its queue operations;
Signed-off-by: Rafael Aquini
---
drivers/virtio
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini
---
mm/compaction.c | 21
This patch introduces MIGRATEPAGE_SUCCESS as the default return code
for address_space_operations.migratepage() method and documents the
expected return code for the same method in failure cases.
Signed-off-by: Rafael Aquini
---
fs/hugetlbfs/inode.c| 4 ++--
include/linux/migrate.h | 7
This patch introduces MIGRATEPAGE_SUCCESS as the default return code
for address_space_operations.migratepage() method and documents the
expected return code for the same method in failure cases.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
fs/hugetlbfs/inode.c| 4 ++--
include/linux
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
mm
providing protection against concurrent access
introduced by parallel memory migration threads.
- balloon_lock (mutex) : synchronizes the access demand to elements of
struct virtio_balloon and its queue operations;
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 8 +++-
mm/balloon_compaction.c | 2 ++
mm
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/balloon_compaction.h | 220
putback_movable_pages() to properly cope with cases where the isolated
pageset contains ballooned pages and LRU pages, thus fixing the mentioned
inelegant hack around putback_lru_pages().
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/migrate.h | 2 ++
mm/compaction.c
data structures through -private_data.
Also, all users of old -assoc_mapping element are converted to reflect
its new name and type change.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
fs/buffer.c| 12 ++--
fs/gfs2/glock.c| 2 +-
fs/inode.c | 2 +-
fs/nilfs2
747 499
Compaction success 244 145
Compaction failures 503 354
Compaction pages moved 370888 474837
Compaction move failure 77378 65259
===END stress-highalloc
Rafael Aquini (7):
mm: adjust
On Fri, Nov 02, 2012 at 09:07:11PM -0700, Greg Kroah-Hartman wrote:
> >
> > Howdy Greg,
> >
> > Somehow the following patch is missing for this series submission:
> > > Len Brown
> > > x86: Remove the ancient and deprecated disable_hlt() and enable_hlt()
> > > facility
> >
> > I glanced
On Fri, Nov 02, 2012 at 09:07:11PM -0700, Greg Kroah-Hartman wrote:
Howdy Greg,
Somehow the following patch is missing for this series submission:
Len Brown len.br...@intel.com
x86: Remove the ancient and deprecated disable_hlt() and enable_hlt()
facility
I glanced at
On Fri, Nov 02, 2012 at 10:06:04AM -0700, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 3.0.51 release.
> There are 4 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
On Fri, Nov 02, 2012 at 10:06:04AM -0700, Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 3.0.51 release.
There are 4 patches in this series, all will be posted as a response
to this one. If anyone has any issues with these being applied, please
let me know.
On Tue, Sep 25, 2012 at 02:40:24AM +0200, Michael S. Tsirkin wrote:
> > @@ -139,9 +158,15 @@ static void fill_balloon(struct virtio_balloon *vb,
> > size_t num)
> > break;
> > }
> > set_page_pfns(vb->pfns + vb->num_pfns, page);
> > -
On Tue, Sep 25, 2012 at 03:05:49AM +0200, Michael S. Tsirkin wrote:
> If these are all under page lock these barriers just confuse things,
> because they are almost never enough by themselves.
> So in that case it would be better to drop them and document
> usage as you are going to.
>
Would the
On Tue, Sep 25, 2012 at 03:05:49AM +0200, Michael S. Tsirkin wrote:
If these are all under page lock these barriers just confuse things,
because they are almost never enough by themselves.
So in that case it would be better to drop them and document
usage as you are going to.
Would the
On Tue, Sep 25, 2012 at 02:40:24AM +0200, Michael S. Tsirkin wrote:
@@ -139,9 +158,15 @@ static void fill_balloon(struct virtio_balloon *vb,
size_t num)
break;
}
set_page_pfns(vb-pfns + vb-num_pfns, page);
- vb-num_pages +=
points and will
> update the cached restart points until a page is isolated or a pageblock
> is skipped that would have been scanned by synchronous compaction.
>
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> ---
Acked-by: Rafael Aquini
--
To unsubscribe from this
ntil memory pressure is relieved would
> cause compaction to continually fail instead of using reclaim/compaction
> to try allocate the page. The time-based mechanism is clumsy but a better
> option is not obvious.
>
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> --
nners.
>
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> ---
Acked-by: Rafael Aquini
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.
e lock for as long as possible. In the
> event there are no free pages in the pageblock then the lock will not be
> acquired at all which reduces contention on zone->lock.
>
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> ---
Acked-by: Rafael Aquini
--
To unsubscribe fro
r as long as possible. If there are no LRU pages or the only
> LRU pages are transhuge then the LRU lock will not be acquired at all
> which reduces contention on zone->lru_lock.
>
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> ---
Acked-by: Rafael Aquini
--
To unsu
ngeli
> Signed-off-by: Shaohua Li
> Signed-off-by: Mel Gorman
> Acked-by: Rik van Riel
> ---
Acked-by: Rafael Aquini
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at
On Fri, Sep 21, 2012 at 11:46:17AM +0100, Mel Gorman wrote:
> This reverts
> mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long.patch
> as it is replaced by a later patch in the series.
>
> Signed-off-by: Mel Gorman
Acked-by: Rafael Aquini
--
To u
On Fri, Sep 21, 2012 at 11:46:16AM +0100, Mel Gorman wrote:
> This reverts
> mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long-fix
> as it is replaced by a later patch in the series.
>
> Signed-off-by: Mel Gorman
Acked-by: Rafael Aquini
--
To unsubscribe
On Fri, Sep 21, 2012 at 11:46:15AM +0100, Mel Gorman wrote:
> This reverts
> mm-compaction-check-lock-contention-first-before-taking-lock.patch as it
> is replaced by a later patch in the series.
>
> Signed-off-by: Mel Gorman
Acked-by: Rafael Aquini
--
To unsubscribe from
On Fri, Sep 21, 2012 at 11:46:15AM +0100, Mel Gorman wrote:
This reverts
mm-compaction-check-lock-contention-first-before-taking-lock.patch as it
is replaced by a later patch in the series.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rafael Aquini aqu...@redhat.com
On Fri, Sep 21, 2012 at 11:46:16AM +0100, Mel Gorman wrote:
This reverts
mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long-fix
as it is replaced by a later patch in the series.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rafael Aquini aqu...@redhat.com
On Fri, Sep 21, 2012 at 11:46:17AM +0100, Mel Gorman wrote:
This reverts
mm-compaction-abort-compaction-loop-if-lock-is-contended-or-run-too-long.patch
as it is replaced by a later patch in the series.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rafael Aquini aqu...@redhat.com
...@fusionio.com
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http
LRU pages are transhuge then the LRU lock will not be acquired at all
which reduces contention on zone-lru_lock.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
To unsubscribe from this list: send the line
. In the
event there are no free pages in the pageblock then the lock will not be
acquired at all which reduces contention on zone-lock.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
To unsubscribe from
...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
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allocate the page. The time-based mechanism is clumsy but a better
option is not obvious.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
To unsubscribe from this list: send the line unsubscribe linux-kernel
is skipped that would have been scanned by synchronous compaction.
Signed-off-by: Mel Gorman mgor...@suse.de
Acked-by: Rik van Riel r...@redhat.com
---
Acked-by: Rafael Aquini aqu...@redhat.com
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message
On Mon, Sep 17, 2012 at 03:15:43PM -0700, Andrew Morton wrote:
> > +/* return code to identify when a ballooned page has been migrated */
> > +#define BALLOON_MIGRATION_RETURN 0xba1100
>
> I didn't really spend enough time to work out why this was done this
> way, but I know a hack when I see
On Mon, Sep 17, 2012 at 03:15:52PM -0700, Andrew Morton wrote:
> > + /* Number of balloon pages isolated from 'pages' list for compaction */
> > + unsigned int num_isolated_pages;
>
> Is it utterly inconceivable that this counter could exceed 4G, ever?
>
> > /* Number of balloon pages
On Mon, Sep 17, 2012 at 03:15:52PM -0700, Andrew Morton wrote:
+ /* Number of balloon pages isolated from 'pages' list for compaction */
+ unsigned int num_isolated_pages;
Is it utterly inconceivable that this counter could exceed 4G, ever?
/* Number of balloon pages we've told
On Mon, Sep 17, 2012 at 03:15:43PM -0700, Andrew Morton wrote:
+/* return code to identify when a ballooned page has been migrated */
+#define BALLOON_MIGRATION_RETURN 0xba1100
I didn't really spend enough time to work out why this was done this
way, but I know a hack when I see one!
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini
---
mm/compaction.c | 47
bookmarking
elements (list and atomic counters) against the
potential memory compaction concurrency;
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 305 +---
1 file changed, 286 insertions
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 8 +++-
mm/balloon_compaction.c | 2 ++
mm/migrate.c
this patch introduces
putback_movable_pages() to properly cope with cases where the isolated
pageset contains ballooned pages and LRU pages, thus fixing the mentioned
inelegant hack around putback_lru_pages().
Signed-off-by: Rafael Aquini
---
include/linux/migrate.h | 2 ++
mm/compaction.c |
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini
---
include/linux/balloon_compaction.h | 147
5
Compaction stalls 1378 968
Compaction success 406 595
Compaction failures 972 373
Compaction pages moved 3104073 1790932
Compaction move failure 92713 41252
===END stress-highalloc
Rafael Aquini (5):
mm: intr
1378 968
Compaction success 406 595
Compaction failures 972 373
Compaction pages moved 3104073 1790932
Compaction move failure 92713 41252
===END stress-highalloc
Rafael Aquini (5):
mm: introduce a common interface
.
This patch introduces a common interface to help a balloon driver on
making its page set movable to compaction, and thus allowing the system
to better leverage the compation efforts on memory defragmentation.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/balloon_compaction.h | 147
putback_movable_pages() to properly cope with cases where the isolated
pageset contains ballooned pages and LRU pages, thus fixing the mentioned
inelegant hack around putback_lru_pages().
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
include/linux/migrate.h | 2 ++
mm/compaction.c
This patch introduces a new set of vm event counters to keep track of
ballooned pages compaction activity.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 1 +
include/linux/vm_event_item.h | 8 +++-
mm/balloon_compaction.c | 2 ++
mm
bookmarking
elements (list and atomic counters) against the
potential memory compaction concurrency;
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
drivers/virtio/virtio_balloon.c | 305 +---
1 file changed
.
This patch introduces the helper functions as well as the necessary changes
to teach compaction and migration bits how to cope with pages which are
part of a guest memory balloon, in order to make them movable by memory
compaction procedures.
Signed-off-by: Rafael Aquini aqu...@redhat.com
---
mm
_bool y
> select MIGRATION
> depends on MMU
> help
>
Acked-by: Rafael Aquini
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help
Acked-by: Rafael Aquini aqu...@redhat.com
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On Tue, Aug 28, 2012 at 08:57:16PM +0300, Michael S. Tsirkin wrote:
> Sorry I do not understand what you are saying here. So find
> a different locking strategy.
>
> For example something like:
>
> wait_event(vb->config_change,
> ({
> lock
>
On Tue, Aug 28, 2012 at 06:54:10PM +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 27, 2012 at 04:47:13PM -0300, Rafael Aquini wrote:
> > On Sun, Aug 26, 2012 at 10:42:44AM +0300, Michael S. Tsirkin wrote:
> > >
> > > Reading two atomics and doing math? Result can ev
On Tue, Aug 28, 2012 at 06:54:10PM +0300, Michael S. Tsirkin wrote:
On Mon, Aug 27, 2012 at 04:47:13PM -0300, Rafael Aquini wrote:
On Sun, Aug 26, 2012 at 10:42:44AM +0300, Michael S. Tsirkin wrote:
Reading two atomics and doing math? Result can even be negative.
I did not look at use
On Tue, Aug 28, 2012 at 08:57:16PM +0300, Michael S. Tsirkin wrote:
Sorry I do not understand what you are saying here. So find
a different locking strategy.
For example something like:
wait_event(vb-config_change,
({
lock
if
On Sun, Aug 26, 2012 at 10:55:58AM +0300, Michael S. Tsirkin wrote:
> On Sat, Aug 25, 2012 at 02:24:56AM -0300, Rafael Aquini wrote:
> > Memory fragmentation introduced by ballooning might reduce significantly
> > the number of 2MB contiguous memory blocks that can be used within a
On Sun, Aug 26, 2012 at 06:44:23PM +0300, Michael S. Tsirkin wrote:
>
> I am simply asking how was this patchset tested.
> It would be nice to have this info in commit log.
> Since this is an optimization patch it is strange
> to see one with no numbers at all.
> For example, you probably run
On Sun, Aug 26, 2012 at 10:42:44AM +0300, Michael S. Tsirkin wrote:
>
> Reading two atomics and doing math? Result can even be negative.
> I did not look at use closely but it looks suspicious.
Doc on atomic_read says:
"
The read is atomic in that the return value is guaranteed to be one of the
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