> From: Bob Liu [mailto:lliu...@gmail.com]
Subject: Re: [PATCHv13 3/4] zswap: add to mm/
>
> On Thu, Jun 20, 2013 at 10:23 PM, Seth Jennings
> wrote:
> > On Thu, Jun 20, 2013 at 05:42:04PM +0800, Bob Liu wrote:
> >> > Just made a mmtests run of my own and got very different results:
> >> >
> >>
From: Bob Liu [mailto:lliu...@gmail.com]
Subject: Re: [PATCHv13 3/4] zswap: add to mm/
On Thu, Jun 20, 2013 at 10:23 PM, Seth Jennings
sjenn...@linux.vnet.ibm.com wrote:
On Thu, Jun 20, 2013 at 05:42:04PM +0800, Bob Liu wrote:
Just made a mmtests run of my own and got very different
> From: Andrew Morton [mailto:a...@linux-foundation.org]
> Subject: Re: [PATCHv12 2/4] zbud: add to mm/
>
> On Wed, 29 May 2013 15:42:36 -0500 Seth Jennings
> wrote:
>
> > > > > I worry about any code which independently looks at the pageframe
> > > > > tables and expects to find page struts
From: Andrew Morton [mailto:a...@linux-foundation.org]
Subject: Re: [PATCHv12 2/4] zbud: add to mm/
On Wed, 29 May 2013 15:42:36 -0500 Seth Jennings
sjenn...@linux.vnet.ibm.com wrote:
I worry about any code which independently looks at the pageframe
tables and expects to find
thanks for all the fish!"
Cheers,
Dan Magenheimer
The Transcendent Memory ("tmem") guy
Tmem-related historical webography:
http://lwn.net/Articles/454795/
http://lwn.net/Articles/475681/
http://lwn.net/Articles/545244/
https://oss.oracle.com/projects/tmem/
http://www.
> From: Dan Magenheimer [mailto:dan.magenhei...@oracle.com]
> Sent: Monday, May 20, 2013 8:52 AM
> To: de...@linuxdriverproject.org; linux-kernel@vger.kernel.org;
> gre...@linuxfoundation.org; linux-
> m...@kvack.org; konrad.w...@oracle.com; dan.magenhei...@oracle.com;
> liw...@
Add how-to documentation that provides a step-by-step guide
for configuring and trying out a ramster cluster.
Signed-off-by: Dan Magenheimer
---
drivers/staging/zcache/ramster/ramster-howto.txt | 366 ++
1 files changed, 366 insertions(+), 0 deletions(-)
create mode 100644
Add how-to documentation that provides a step-by-step guide
for configuring and trying out a ramster cluster.
Signed-off-by: Dan Magenheimer dan.magenhei...@oracle.com
---
drivers/staging/zcache/ramster/ramster-howto.txt | 366 ++
1 files changed, 366 insertions(+), 0
From: Dan Magenheimer [mailto:dan.magenhei...@oracle.com]
Sent: Monday, May 20, 2013 8:52 AM
To: de...@linuxdriverproject.org; linux-kernel@vger.kernel.org;
gre...@linuxfoundation.org; linux-
m...@kvack.org; konrad.w...@oracle.com; dan.magenhei...@oracle.com;
liw...@linux.vnet.ibm.com;
bob
the fish!
Cheers,
Dan Magenheimer
The Transcendent Memory (tmem) guy
Tmem-related historical webography:
http://lwn.net/Articles/454795/
http://lwn.net/Articles/475681/
http://lwn.net/Articles/545244/
https://oss.oracle.com/projects/tmem/
http://www.linux-kvm.org/wiki/images/d/d7/TmemNotVirt
> From: Rik van Riel [mailto:r...@redhat.com]
> Sent: Wednesday, May 15, 2013 4:15 PM
> To: Dan Magenheimer
> Cc: Seth Jennings; Andrew Morton; Greg Kroah-Hartman; Nitin Gupta; Minchan
> Kim; Konrad Wilk; Robert
> Jennings; Jenifer Hopper; Mel Gorman; Johannes Weiner; Larry Wo
From: Rik van Riel [mailto:r...@redhat.com]
Sent: Wednesday, May 15, 2013 4:15 PM
To: Dan Magenheimer
Cc: Seth Jennings; Andrew Morton; Greg Kroah-Hartman; Nitin Gupta; Minchan
Kim; Konrad Wilk; Robert
Jennings; Jenifer Hopper; Mel Gorman; Johannes Weiner; Larry Woodman;
Benjamin
> From: Rik van Riel [mailto:r...@redhat.com]
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
> On 05/15/2013 03:35 PM, Dan Magenheimer wrote:
> >> From: Konrad Rzeszutek Wilk
> >> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
> >>
> >>> Sorr
> From: Dave Hansen [mailto:d...@sr71.net]
> Sent: Wednesday, May 15, 2013 2:24 PM
> To: Seth Jennings
> Cc: Konrad Rzeszutek Wilk; Dan Magenheimer; Andrew Morton; Greg
> Kroah-Hartman; Nitin Gupta; Minchan
> Kim; Robert Jennings; Jenifer Hopper; Mel Gorman; Johannes Weine
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Sent: Wednesday, May 15, 2013 2:10 PM
> To: Konrad Rzeszutek Wilk
> Cc: Dan Magenheimer; Andrew Morton; Greg Kroah-Hartman; Nitin Gupta; Minchan
> Kim; Robert Jennings;
> Jenifer Hopper; Mel Gorman; Johannes Weiner; R
> From: Konrad Rzeszutek Wilk
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
> > Sorry, but I don't think that's appropriate for a patch in the MM subsystem.
>
> I am heading to the airport shortly so this email is a bit hastily typed.
>
> Perhaps a compromise can be reached where this code
n Monday.
FWIW, I've scanned all of these and they look sane and good. So consider all:
Acked-by: Dan Magenheimer
> Documentation/kernel-parameters.txt | 21
> drivers/xen/Kconfig |7 +--
> drivers/xen/tmem.c | 87
> --
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
> On Tue, May 14, 2013 at 01:18:48PM -0700, Dan Magenheimer wrote:
> > > From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> > > Subject: Re: [
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
On Tue, May 14, 2013 at 01:18:48PM -0700, Dan Magenheimer wrote:
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
snip
- And lastly add some logic to not enable selfshrinking and selfballooning
if frontswap functionality is off.
That is it. Tested and ready to go. If nobody objects will put on my queue
for Linus on Monday.
FWIW, I've scanned all of these and they look sane and good. So consider all:
Acked-by: Dan
From: Konrad Rzeszutek Wilk
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
Sorry, but I don't think that's appropriate for a patch in the MM subsystem.
I am heading to the airport shortly so this email is a bit hastily typed.
Perhaps a compromise can be reached where this code is merged
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Sent: Wednesday, May 15, 2013 2:10 PM
To: Konrad Rzeszutek Wilk
Cc: Dan Magenheimer; Andrew Morton; Greg Kroah-Hartman; Nitin Gupta; Minchan
Kim; Robert Jennings;
Jenifer Hopper; Mel Gorman; Johannes Weiner; Rik van Riel; Larry
From: Dave Hansen [mailto:d...@sr71.net]
Sent: Wednesday, May 15, 2013 2:24 PM
To: Seth Jennings
Cc: Konrad Rzeszutek Wilk; Dan Magenheimer; Andrew Morton; Greg
Kroah-Hartman; Nitin Gupta; Minchan
Kim; Robert Jennings; Jenifer Hopper; Mel Gorman; Johannes Weiner; Rik van
Riel; Larry
From: Rik van Riel [mailto:r...@redhat.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
On 05/15/2013 03:35 PM, Dan Magenheimer wrote:
From: Konrad Rzeszutek Wilk
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
Sorry, but I don't think that's appropriate for a patch in the MM
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
> On Tue, May 14, 2013 at 09:37:08AM -0700, Dan Magenheimer wrote:
> > > From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> > > Subject: Re: [
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
>
>
> > > +/* The maximum percentage of memory that the compressed pool can occupy
> > > */
> > > +static unsigned int zswap_max_pool_percent = 20;
> > >
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: [PATCHv11 3/4] zswap: add to mm/
>
> On Tue, May 14, 2013 at 05:19:19PM +0800, Bob Liu wrote:
> > Hi Seth,
>
> Hi Bob, thanks for the review!
>
> >
> > > + /* reclaim space if needed */
> > > + if (zswap_is_full()) {
> >
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
On Tue, May 14, 2013 at 05:19:19PM +0800, Bob Liu wrote:
Hi Seth,
Hi Bob, thanks for the review!
+ /* reclaim space if needed */
+ if (zswap_is_full()) {
+
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
snip
+/* The maximum percentage of memory that the compressed pool can occupy
*/
+static unsigned int zswap_max_pool_percent = 20;
+module_param_named(max_pool_percent,
+
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
On Tue, May 14, 2013 at 09:37:08AM -0700, Dan Magenheimer wrote:
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
On Tue
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: [PATCHv11 3/4] zswap: add to mm/
>
> zswap is a thin compression backend for frontswap. It receives pages from
> frontswap and attempts to store them in a compressed memory pool, resulting in
> an effective partial memory
o
> obj-$(CONFIG_DEBUG_KMEMLEAK_TEST) += kmemleak-test.o
> obj-$(CONFIG_CLEANCACHE) += cleancache.o
> obj-$(CONFIG_MEMORY_ISOLATION) += page_isolation.o
> +obj-$(CONFIG_ZBUD) += zbud.o
> diff --git a/mm/zbud.c b/mm/zbud.c
> new file mode 100644
> index 000..e5bd0e6
>
+ *
+ * Copyright (C) 2013, Seth Jennings, IBM
+ *
+ * Concepts based on zcache internal zbud allocator by Dan Magenheimer.
+ *
+ * zbud is an special purpose allocator for storing compressed pages. It is
+ * designed to store up to two compressed pages per physical page. While
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: [PATCHv11 3/4] zswap: add to mm/
zswap is a thin compression backend for frontswap. It receives pages from
frontswap and attempts to store them in a compressed memory pool, resulting in
an effective partial memory reclaim and
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: zsmalloc zbud hybrid design discussion?
>
> On Thu, Apr 11, 2013 at 04:28:19PM -0700, Dan Magenheimer wrote:
> > (Bob Liu added)
> >
> > > From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: zsmalloc zbud hybrid design discussion?
On Thu, Apr 11, 2013 at 04:28:19PM -0700, Dan Magenheimer wrote:
(Bob Liu added)
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: zsmalloc zbud hybrid
(Bob Liu added)
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: zsmalloc zbud hybrid design discussion?
>
> On Wed, Mar 27, 2013 at 01:04:25PM -0700, Dan Magenheimer wrote:
> > Seth and all zproject folks --
> >
> > I've been giving some
wrote:
> > > On Tue, Apr 09, 2013 at 10:27:19AM +0900, Minchan Kim wrote:
> > >> Hi Dan,
> > >>
> > >> On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
> > >>>> From: Minchan Kim [mailto:minc...@kernel.org]
> > >>&
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
> zram in-memory)
>
> On Tue, Apr 09, 2013 at 01:37:47PM -0700, Dan Magenheimer wrote:
> > > From: Minchan Kim [mailto:minc...@kernel.org]
>
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
> zram in-memory)
>
> On Tue, Apr 09, 2013 at 01:25:45PM -0700, Dan Magenheimer wrote:
> > > From: Minchan Kim [mailto:minc...@kernel.org]
>
;> Hi Dan,
> >>
> >> On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
> >>>> From: Minchan Kim [mailto:minc...@kernel.org]
> >>>> Sent: Monday, April 08, 2013 12:01 AM
> >>>> Subject: [PATCH] mm: remove compressed co
> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Sent: Tuesday, April 09, 2013 6:26 PM
> To: Greg Kroah-Hartman
> Cc: Dan Magenheimer; Seth Jennings; Konrad Rzeszutek Wilk; Minchan Kim;
> linux...@kvack.org; linux-
> ker...@vger.kernel.org; Andrew Morton; Bob Liu; Wa
> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Subject: [PATCH 02/10] staging: zcache: remove zcache_freeze
>
> The default value of zcache_freeze is false and it won't be modified by
> other codes. Remove zcache_freeze since no routine can disable zcache
> during system running.
>
>
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Subject: [PATCH 02/10] staging: zcache: remove zcache_freeze
The default value of zcache_freeze is false and it won't be modified by
other codes. Remove zcache_freeze since no routine can disable zcache
during system running.
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Sent: Tuesday, April 09, 2013 6:26 PM
To: Greg Kroah-Hartman
Cc: Dan Magenheimer; Seth Jennings; Konrad Rzeszutek Wilk; Minchan Kim;
linux...@kvack.org; linux-
ker...@vger.kernel.org; Andrew Morton; Bob Liu; Wanpeng Li
Subject: [PATCH 00
at 09:32:38AM -0700, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minc...@kernel.org]
Sent: Monday, April 08, 2013 12:01 AM
Subject: [PATCH] mm: remove compressed copy from zram in-memory
(patch removed)
Fragment ratio is almost same but memory consumption and compile time
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
zram in-memory)
On Tue, Apr 09, 2013 at 01:25:45PM -0700, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
zram in-memory)
On Tue, Apr 09, 2013 at 01:37:47PM -0700, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag
:19AM +0900, Minchan Kim wrote:
Hi Dan,
On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minc...@kernel.org]
Sent: Monday, April 08, 2013 12:01 AM
Subject: [PATCH] mm: remove compressed copy from zram in-memory
(patch removed
(Bob Liu added)
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: zsmalloc zbud hybrid design discussion?
On Wed, Mar 27, 2013 at 01:04:25PM -0700, Dan Magenheimer wrote:
Seth and all zproject folks --
I've been giving some deep thought as to how a zpage
allocator
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
> zram in-memory)
>
> On Tue, Apr 09, 2013 at 10:27:19AM +0900, Minchan Kim wrote:
> > Hi Dan,
> >
> > On Mon, Apr 08, 2013 at 09:32:
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
> zram in-memory)
>
> Hi Dan,
>
> On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
> > > From: Minchan Kim [mailto:minc...@
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
zram in-memory)
Hi Dan,
On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
From: Minchan Kim [mailto:minc...@kernel.org]
Sent: Monday, April 08
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from
zram in-memory)
On Tue, Apr 09, 2013 at 10:27:19AM +0900, Minchan Kim wrote:
Hi Dan,
On Mon, Apr 08, 2013 at 09:32:38AM -0700, Dan Magenheimer wrote:
From
> From: Minchan Kim [mailto:minc...@kernel.org]
> Sent: Monday, April 08, 2013 12:01 AM
> Subject: [PATCH] mm: remove compressed copy from zram in-memory
(patch removed)
> Fragment ratio is almost same but memory consumption and compile time
> is better. I am working to add defragment function
From: Minchan Kim [mailto:minc...@kernel.org]
Sent: Monday, April 08, 2013 12:01 AM
Subject: [PATCH] mm: remove compressed copy from zram in-memory
(patch removed)
Fragment ratio is almost same but memory consumption and compile time
is better. I am working to add defragment function of
> From: Dan Magenheimer
> Subject: RE: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled pages
> more efficiently
>
> > From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> > Subject: Re: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled
> > pag
> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Subject: Re: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled pages
> more efficiently
>
> Hi Dan,
>
> Some issues against Ramster:
>
> - Ramster who takes advantage of zcache also should support zero-filled
> pages more
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Subject: Re: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled pages
more efficiently
Hi Dan,
Some issues against Ramster:
- Ramster who takes advantage of zcache also should support zero-filled
pages more efficiently,
From: Dan Magenheimer
Subject: RE: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled pages
more efficiently
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Subject: Re: [PATCH part2 v6 0/3] staging: zcache: Support zero-filled
pages more efficiently
Hi Dan,
Some
another revision of the patchset is needed for other
> reasons, I'll pull this change into the next version.
>
> I think Dan and Bob would be ok with their tags being applied to 5 and 6:
>
> Acked-by: Bob Liu
> Reviewed-by: Dan Magenheimer
>
> That ok?
OK with me. I do
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: [PATCHv8 0/8] zswap: compressed swap caching
>
> ... I am submitting this as a
> candidate for merging in the v3.10 window...
> :
> I'll be attending the LSF/MM summit where there (hopefully) will be a
> discussion this
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: [PATCHv8 0/8] zswap: compressed swap caching
... I am submitting this as a
candidate for merging in the v3.10 window...
:
I'll be attending the LSF/MM summit where there (hopefully) will be a
discussion this patchset and
with their tags being applied to 5 and 6:
Acked-by: Bob Liu bob@oracle.com
Reviewed-by: Dan Magenheimer dan.magenhei...@oracle.com
That ok?
OK with me. I do support these two MM patches as candidates for the
3.10 window since both zswap AND in-tree zcache depend on them,
but the silence from Andrew
> From: Dan Magenheimer
> Sent: Wednesday, March 27, 2013 3:42 PM
> To: Seth Jennings; Konrad Wilk; Minchan Kim; Bob Liu; Robert Jennings; Nitin
> Gupta; Wanpeng Li; Andrew
> Morton; Mel Gorman
> Cc: linux...@kvack.org; linux-kernel@vger.kernel.org
> Subject: zsmalloc/l
From: Dan Magenheimer
Sent: Wednesday, March 27, 2013 3:42 PM
To: Seth Jennings; Konrad Wilk; Minchan Kim; Bob Liu; Robert Jennings; Nitin
Gupta; Wanpeng Li; Andrew
Morton; Mel Gorman
Cc: linux...@kvack.org; linux-kernel@vger.kernel.org
Subject: zsmalloc/lzo compressibility vs entropy
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: Re: [RFC] mm: remove swapcache page early
>
> Hi Dan,
>
> On Wed, Mar 27, 2013 at 03:24:00PM -0700, Dan Magenheimer wrote:
> > > From: Hugh Dickins [mailto:hu...@google.com]
> > > Subject: Re: [
> From: Hugh Dickins [mailto:hu...@google.com]
> Subject: RE: [RFC] mm: remove swapcache page early
>
> On Wed, 27 Mar 2013, Dan Magenheimer wrote:
> > > From: Hugh Dickins [mailto:hu...@google.com]
> > > Subject: Re: [RFC] mm: remove swapcache page early
>
From: Hugh Dickins [mailto:hu...@google.com]
Subject: RE: [RFC] mm: remove swapcache page early
On Wed, 27 Mar 2013, Dan Magenheimer wrote:
From: Hugh Dickins [mailto:hu...@google.com]
Subject: Re: [RFC] mm: remove swapcache page early
The issue you are raising
here is (2). You
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: Re: [RFC] mm: remove swapcache page early
Hi Dan,
On Wed, Mar 27, 2013 at 03:24:00PM -0700, Dan Magenheimer wrote:
From: Hugh Dickins [mailto:hu...@google.com]
Subject: Re: [RFC] mm: remove swapcache page early
I believe
> From: Hugh Dickins [mailto:hu...@google.com]
> Subject: Re: [RFC] mm: remove swapcache page early
>
> On Wed, 27 Mar 2013, Minchan Kim wrote:
>
> > Swap subsystem does lazy swap slot free with expecting the page
> > would be swapped out again so we can't avoid unnecessary write.
>
This might be obvious to those of you who are better
mathematicians than I, but I ran some experiments
to confirm the relationship between entropy and compressibility
and thought I should report the results to the list.
Using the LZO code in the kernel via zsmalloc and some
hacks in zswap, I
> From: Minchan Kim [mailto:minc...@kernel.org]
> Subject: [RFC] mm: remove swapcache page early
>
> Swap subsystem does lazy swap slot free with expecting the page
> would be swapped out again so we can't avoid unnecessary write.
>
> But the problem in in-memory swap is that it consumes memory
From: Minchan Kim [mailto:minc...@kernel.org]
Subject: [RFC] mm: remove swapcache page early
Swap subsystem does lazy swap slot free with expecting the page
would be swapped out again so we can't avoid unnecessary write.
But the problem in in-memory swap is that it consumes memory space
This might be obvious to those of you who are better
mathematicians than I, but I ran some experiments
to confirm the relationship between entropy and compressibility
and thought I should report the results to the list.
Using the LZO code in the kernel via zsmalloc and some
hacks in zswap, I
From: Hugh Dickins [mailto:hu...@google.com]
Subject: Re: [RFC] mm: remove swapcache page early
On Wed, 27 Mar 2013, Minchan Kim wrote:
Swap subsystem does lazy swap slot free with expecting the page
would be swapped out again so we can't avoid unnecessary write.
> From: Konrad Rzeszutek Wilk [mailto:kon...@darnok.org]
> Sent: Tuesday, March 19, 2013 10:44 AM
> To: Dan Magenheimer
> Cc: Wanpeng Li; Greg Kroah-Hartman; Andrew Morton; Seth Jennings; Minchan
> Kim; linux...@kvack.org;
> linux-kernel@vger.kernel.org
> Subject: Re: [PA
From: Konrad Rzeszutek Wilk [mailto:kon...@darnok.org]
Sent: Tuesday, March 19, 2013 10:44 AM
To: Dan Magenheimer
Cc: Wanpeng Li; Greg Kroah-Hartman; Andrew Morton; Seth Jennings; Minchan
Kim; linux...@kvack.org;
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/4] introduce zero
> From: Konrad Rzeszutek Wilk [mailto:kon...@darnok.org]
> Subject: Re: [PATCH v2 1/4] introduce zero filled pages handler
>
> > +
> > + for (pos = 0; pos < PAGE_SIZE / sizeof(*page); pos++) {
> > + if (page[pos])
> > + return false;
>
> Perhaps allocate a static
From: Konrad Rzeszutek Wilk [mailto:kon...@darnok.org]
Subject: Re: [PATCH v2 1/4] introduce zero filled pages handler
+
+ for (pos = 0; pos PAGE_SIZE / sizeof(*page); pos++) {
+ if (page[pos])
+ return false;
Perhaps allocate a static page filled with
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: zsmalloc limitations and related topics
>
> On 03/14/2013 01:54 PM, Dan Magenheimer wrote:
> >> From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
> >> Subject: Re: zsmalloc
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: zsmalloc limitations and related topics
On 03/14/2013 01:54 PM, Dan Magenheimer wrote:
From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
Subject: Re: zsmalloc limitations and related topics
* Bob (bob
> From: Dan Magenheimer
> Subject: RE: zsmalloc limitations and related topics
>
> > > I would welcome ideas on how to evaluate workloads for
> > > "representativeness". Personally I don't believe we should
> > > be making decisions about selecti
> From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
> Sent: Thursday, March 14, 2013 7:21 AM
> To: Bob
> Cc: Seth Jennings; Dan Magenheimer; minc...@kernel.org; Nitin Gupta; Konrad
> Wilk; linux...@kvack.org;
> linux-kernel@vger.kernel.org; Bob Liu; Luigi Semenzato; Mel Go
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> Subject: Re: zsmalloc limitations and related topics
Hi Seth --
Thanks for the reply. I think it is very important to
be having these conversations.
> >>> 2) When not full and especially when nearly-empty _after_
> >>>being full,
> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Sent: Wednesday, March 13, 2013 6:21 PM
> To: Dan Magenheimer
> Cc: Andrew Morton; Greg Kroah-Hartman; Dan Magenheimer; Seth Jennings; Konrad
> Rzeszutek Wilk; Minchan
> Kim; linux...@kvack.org; linux-kernel@vger.kernel
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Sent: Wednesday, March 13, 2013 6:21 PM
To: Dan Magenheimer
Cc: Andrew Morton; Greg Kroah-Hartman; Dan Magenheimer; Seth Jennings; Konrad
Rzeszutek Wilk; Minchan
Kim; linux...@kvack.org; linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
Subject: Re: zsmalloc limitations and related topics
Hi Seth --
Thanks for the reply. I think it is very important to
be having these conversations.
2) When not full and especially when nearly-empty _after_
being full, density
From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
Sent: Thursday, March 14, 2013 7:21 AM
To: Bob
Cc: Seth Jennings; Dan Magenheimer; minc...@kernel.org; Nitin Gupta; Konrad
Wilk; linux...@kvack.org;
linux-kernel@vger.kernel.org; Bob Liu; Luigi Semenzato; Mel Gorman
Subject: Re
From: Dan Magenheimer
Subject: RE: zsmalloc limitations and related topics
I would welcome ideas on how to evaluate workloads for
representativeness. Personally I don't believe we should
be making decisions about selecting the best algorithms
or merging code without an agreement
> From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
> Subject: Re: zsmalloc limitations and related topics
Hi Robert --
Thanks for the well-considered reply!
> * Dan Magenheimer (dan.magenhei...@oracle.com) wrote:
> > Hi all --
> >
> > I've been doing some
ERO_FILLED into zcache_pampd_create_finish()
I think that would be cleaner...
If you change this and make the pageframe counter fix for PATCH 4/4,
please add my ack for the next version:
Acked-by: Dan Magenheimer
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To unsubscribe from this list: send the line "unsubscribe linux-kernel"
> From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
> Sent: Wednesday, March 13, 2013 1:05 AM
> To: Andrew Morton
> Cc: Greg Kroah-Hartman; Dan Magenheimer; Seth Jennings; Konrad Rzeszutek
> Wilk; Minchan Kim; linux-
> m...@kvack.org; linux-kernel@vger.kernel.org; Wanpeng Li
&
From: Wanpeng Li [mailto:liw...@linux.vnet.ibm.com]
Sent: Wednesday, March 13, 2013 1:05 AM
To: Andrew Morton
Cc: Greg Kroah-Hartman; Dan Magenheimer; Seth Jennings; Konrad Rzeszutek
Wilk; Minchan Kim; linux-
m...@kvack.org; linux-kernel@vger.kernel.org; Wanpeng Li
Subject: [PATCH 4/4
version:
Acked-by: Dan Magenheimer dan.magenhei...@oracle.com
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Please read the FAQ at http://www.tux.org
From: Robert Jennings [mailto:r...@linux.vnet.ibm.com]
Subject: Re: zsmalloc limitations and related topics
Hi Robert --
Thanks for the well-considered reply!
* Dan Magenheimer (dan.magenhei...@oracle.com) wrote:
Hi all --
I've been doing some experimentation on zsmalloc
> From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
> To: Dave Hansen
> Subject: Re: [PATCHv7 4/8] zswap: add to mm/
>
> On 03/07/2013 01:00 PM, Dave Hansen wrote:
> > On 03/06/2013 07:52 AM, Seth Jennings wrote:
> > ...
> >> +**/
> >> +/* attempts to
From: Seth Jennings [mailto:sjenn...@linux.vnet.ibm.com]
To: Dave Hansen
Subject: Re: [PATCHv7 4/8] zswap: add to mm/
On 03/07/2013 01:00 PM, Dave Hansen wrote:
On 03/06/2013 07:52 AM, Seth Jennings wrote:
...
+**/
+/* attempts to compress and store an
> From: Ric Mason [mailto:ric.mas...@gmail.com]
> Subject: Re: zsmalloc limitations and related topics
>
> On 02/28/2013 07:24 AM, Dan Magenheimer wrote:
> > Hi all --
> >
> > I've been doing some experimentation on zsmalloc in preparation
> > for my topic prop
From: Ric Mason [mailto:ric.mas...@gmail.com]
Subject: Re: zsmalloc limitations and related topics
On 02/28/2013 07:24 AM, Dan Magenheimer wrote:
Hi all --
I've been doing some experimentation on zsmalloc in preparation
for my topic proposed for LSFMM13 and have run across some
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