From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Bob Liu <bob.liu@oracle.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>
Subject: Re: [RFC PATCH 0/4] mm: reclaim zbud pages on migration and compaction
Date: Tue, 06 Aug 2013 15:05:14 +0200 [thread overview]
Message-ID: <1375794314.13955.6.camel@AMDC1943> (raw)
In-Reply-To: <5200BEEF.7060904@oracle.com>
On wto, 2013-08-06 at 17:16 +0800, Bob Liu wrote:
> On 08/06/2013 02:42 PM, Krzysztof Kozlowski wrote:
> > This reclaim process is different than zbud_reclaim_page(). It acts more
> > like swapoff() by trying to unuse pages stored in zbud page and bring
> > them back to memory. The standard zbud_reclaim_page() on the other hand
> > tries to write them back.
>
> I prefer to migrate zbud pages directly if it's possible than reclaiming
> them during compaction.
I think it is possible however it would be definitely more complex. In
case of migration the zswap handles should be updated as they are just
virtual addresses. Am I right?
Best regards,
Krzysztof
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Bob Liu <bob.liu@oracle.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>
Subject: Re: [RFC PATCH 0/4] mm: reclaim zbud pages on migration and compaction
Date: Tue, 06 Aug 2013 15:05:14 +0200 [thread overview]
Message-ID: <1375794314.13955.6.camel@AMDC1943> (raw)
In-Reply-To: <5200BEEF.7060904@oracle.com>
On wto, 2013-08-06 at 17:16 +0800, Bob Liu wrote:
> On 08/06/2013 02:42 PM, Krzysztof Kozlowski wrote:
> > This reclaim process is different than zbud_reclaim_page(). It acts more
> > like swapoff() by trying to unuse pages stored in zbud page and bring
> > them back to memory. The standard zbud_reclaim_page() on the other hand
> > tries to write them back.
>
> I prefer to migrate zbud pages directly if it's possible than reclaiming
> them during compaction.
I think it is possible however it would be definitely more complex. In
case of migration the zswap handles should be updated as they are just
virtual addresses. Am I right?
Best regards,
Krzysztof
next prev parent reply other threads:[~2013-08-06 13:05 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-06 6:42 [RFC PATCH 0/4] mm: reclaim zbud pages on migration and compaction Krzysztof Kozlowski
2013-08-06 6:42 ` Krzysztof Kozlowski
2013-08-06 6:42 ` [RFC PATCH 1/4] zbud: use page ref counter for zbud pages Krzysztof Kozlowski
2013-08-06 6:42 ` Krzysztof Kozlowski
2013-08-06 9:00 ` Bob Liu
2013-08-06 9:00 ` Bob Liu
2013-08-06 9:25 ` Krzysztof Kozlowski
2013-08-06 9:25 ` Krzysztof Kozlowski
2013-08-06 18:51 ` Seth Jennings
2013-08-07 7:31 ` Krzysztof Kozlowski
2013-08-07 7:31 ` Krzysztof Kozlowski
2013-08-06 6:42 ` [RFC PATCH 2/4] mm: split code for unusing swap entries from try_to_unuse Krzysztof Kozlowski
2013-08-06 6:42 ` Krzysztof Kozlowski
2013-08-06 6:42 ` [RFC PATCH 3/4] mm: add zbud flag to page flags Krzysztof Kozlowski
2013-08-06 6:42 ` Krzysztof Kozlowski
2013-08-06 16:58 ` Dave Hansen
2013-08-06 16:58 ` Dave Hansen
2013-08-07 7:04 ` Krzysztof Kozlowski
2013-08-07 7:04 ` Krzysztof Kozlowski
2013-08-08 7:26 ` Krzysztof Kozlowski
2013-08-08 7:26 ` Krzysztof Kozlowski
2013-08-06 18:57 ` Seth Jennings
2013-08-06 6:42 ` [RFC PATCH 4/4] mm: reclaim zbud pages on migration and compaction Krzysztof Kozlowski
2013-08-06 6:42 ` Krzysztof Kozlowski
2013-08-06 9:16 ` [RFC PATCH 0/4] " Bob Liu
2013-08-06 9:16 ` Bob Liu
2013-08-06 13:05 ` Krzysztof Kozlowski [this message]
2013-08-06 13:05 ` Krzysztof Kozlowski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1375794314.13955.6.camel@AMDC1943 \
--to=k.kozlowski@samsung.com \
--cc=akpm@linux-foundation.org \
--cc=b.zolnierkie@samsung.com \
--cc=bob.liu@oracle.com \
--cc=kyungmin.park@samsung.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=m.szyprowski@samsung.com \
--cc=mgorman@suse.de \
--cc=sjenning@linux.vnet.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.