On Mon, Mar 16, 2015 at 09:49:56AM -0400, Eric B Munson wrote:
> On Mon, 16 Mar 2015, Vlastimil Babka wrote:
>
> > [CC += linux-api@]
> >
> > Since this is a kernel-user-space API change, please CC linux-api@.
> > The kernel source file Documentation/SubmitChecklist notes that all
> > Linux
On 03/16/2015 02:49 PM, Eric B Munson wrote:
On Mon, 16 Mar 2015, Vlastimil Babka wrote:
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches that change userspace
On 03/16/2015 02:49 PM, Eric B Munson wrote:
On Mon, 16 Mar 2015, Vlastimil Babka wrote:
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches that change userspace
On Mon, Mar 16, 2015 at 09:49:56AM -0400, Eric B Munson wrote:
On Mon, 16 Mar 2015, Vlastimil Babka wrote:
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches
On Fri, 13 Mar 2015, David Rientjes wrote:
> It would be really disappointing to not enable this by default for !rt
> kernels. We haven't migrated mlocked pages in the past by way of memory
> compaction because it can theoretically result in consistent minor page
> faults, but I haven't yet
On Mon, 16 Mar 2015, Vlastimil Babka wrote:
> [CC += linux-api@]
>
> Since this is a kernel-user-space API change, please CC linux-api@.
> The kernel source file Documentation/SubmitChecklist notes that all
> Linux kernel patches that change userspace interfaces should be CCed
> to
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches that change userspace interfaces should be CCed
to linux-...@vger.kernel.org, so that the various parties who are
On Mon, 16 Mar 2015, Vlastimil Babka wrote:
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches that change userspace interfaces should be CCed
to
[CC += linux-api@]
Since this is a kernel-user-space API change, please CC linux-api@.
The kernel source file Documentation/SubmitChecklist notes that all
Linux kernel patches that change userspace interfaces should be CCed
to linux-...@vger.kernel.org, so that the various parties who are
On Fri, 13 Mar 2015, David Rientjes wrote:
It would be really disappointing to not enable this by default for !rt
kernels. We haven't migrated mlocked pages in the past by way of memory
compaction because it can theoretically result in consistent minor page
faults, but I haven't yet heard a
On 03/13/2015 07:18 PM, David Rientjes wrote:
> On Fri, 13 Mar 2015, Eric B Munson wrote:
>
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
} isolate_migrate_t;
+int
On Fri, 13 Mar 2015, Eric B Munson wrote:
> > > --- a/mm/compaction.c
> > > +++ b/mm/compaction.c
> > > @@ -1046,6 +1046,8 @@ typedef enum {
> > > ISOLATE_SUCCESS,/* Pages isolated, migrate */
> > > } isolate_migrate_t;
> > >
> > > +int sysctl_compact_unevictable;
> > > +
> > > /*
>
On Fri 13-03-15 15:09:15, Eric B Munson wrote:
> On Fri, 13 Mar 2015, Rik van Riel wrote:
>
> > On 03/13/2015 01:26 PM, Eric B Munson wrote:
> >
> > > --- a/mm/compaction.c
> > > +++ b/mm/compaction.c
> > > @@ -1046,6 +1046,8 @@ typedef enum {
> > > ISOLATE_SUCCESS,/* Pages isolated,
On Fri 13-03-15 13:26:37, Eric B Munson wrote:
[...]
> +compact_unevictable
> +
> +Available only when CONFIG_COMPACTION is set. When set to 1, compaction is
> +allowed to examine the unevictable lru (mlocked pages) for pages to compact.
> +This should be used on systems where stalls for minor
On Fri, 13 Mar 2015, Rik van Riel wrote:
> On 03/13/2015 01:26 PM, Eric B Munson wrote:
>
> > --- a/mm/compaction.c
> > +++ b/mm/compaction.c
> > @@ -1046,6 +1046,8 @@ typedef enum {
> > ISOLATE_SUCCESS,/* Pages isolated, migrate */
> > } isolate_migrate_t;
> >
> > +int
On 03/13/2015 01:26 PM, Eric B Munson wrote:
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -1046,6 +1046,8 @@ typedef enum {
> ISOLATE_SUCCESS,/* Pages isolated, migrate */
> } isolate_migrate_t;
>
> +int sysctl_compact_unevictable;
> +
> /*
> * Isolate all pages that
Currently, pages which are marked as unevictable are protected from
compaction, but not from other types of migration. The POSIX real time
extension explicitly states that mlock() will prevent a major page
fault, but the spirit of is is that mlock() should give a process the
ability to control
On Fri, 13 Mar 2015, Rik van Riel wrote:
On 03/13/2015 01:26 PM, Eric B Munson wrote:
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
} isolate_migrate_t;
+int
Currently, pages which are marked as unevictable are protected from
compaction, but not from other types of migration. The POSIX real time
extension explicitly states that mlock() will prevent a major page
fault, but the spirit of is is that mlock() should give a process the
ability to control
On 03/13/2015 01:26 PM, Eric B Munson wrote:
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
} isolate_migrate_t;
+int sysctl_compact_unevictable;
+
/*
* Isolate all pages that can be
On Fri 13-03-15 15:09:15, Eric B Munson wrote:
On Fri, 13 Mar 2015, Rik van Riel wrote:
On 03/13/2015 01:26 PM, Eric B Munson wrote:
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
}
On Fri 13-03-15 13:26:37, Eric B Munson wrote:
[...]
+compact_unevictable
+
+Available only when CONFIG_COMPACTION is set. When set to 1, compaction is
+allowed to examine the unevictable lru (mlocked pages) for pages to compact.
+This should be used on systems where stalls for minor page
On Fri, 13 Mar 2015, Eric B Munson wrote:
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
} isolate_migrate_t;
+int sysctl_compact_unevictable;
+
/*
* Isolate all pages
On 03/13/2015 07:18 PM, David Rientjes wrote:
On Fri, 13 Mar 2015, Eric B Munson wrote:
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1046,6 +1046,8 @@ typedef enum {
ISOLATE_SUCCESS,/* Pages isolated, migrate */
} isolate_migrate_t;
+int sysctl_compact_unevictable;
+
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