From: Rik van Riel <riel@redhat.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Greg Thelen <gthelen@google.com>,
Christoph Hellwig <hch@infradead.org>,
Hugh Dickins <hughd@google.com>, Jan Kara <jack@suse.cz>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan.kim@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Michel Lespinasse <walken@google.com>,
Seth Jennings <sjenning@linux.vnet.ibm.com>,
Roman Gushchin <klamm@yandex-team.ru>,
Ozgun Erdogan <ozgun@citusdata.com>,
Metin Doslu <metin@citusdata.com>,
Vlastimil Babka <vbabka@suse.cz>, Tejun Heo <tj@kernel.org>,
Linux-MM <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org, Linux-Ke
Subject: Re: [patch 0/8] mm: thrash detection-based file cache sizing v5
Date: Thu, 14 Nov 2013 10:53:37 -0500 [thread overview]
Message-ID: <5284F201.4040607@redhat.com> (raw)
In-Reply-To: <CAA_GA1df0sbaBvTPjfPB0Pqyc=KtFq98Qsg=r7NPRn5z=Qsw2g@mail.gmail.com>
On 11/12/2013 05:30 AM, Bob Liu wrote:
> Hi Johannes,
>
> On Fri, Oct 11, 2013 at 5:46 AM, Johannes Weiner <hannes@cmpxchg.org> wrote:
>> Future
>>
>> Right now we have a fixed ratio (50:50) between inactive and active
>> list but we already have complaints about working sets exceeding half
>> of memory being pushed out of the cache by simple used-once streaming
>> in the background. Ultimately, we want to adjust this ratio and allow
>> for a much smaller inactive list. These patches are an essential step
>> in this direction because they decouple the VMs ability to detect
>> working set changes from the inactive list size. This would allow us
>> to base the inactive list size on something more sensible, like the
>> combined readahead window size for example.
>>
>
> I found that this patchset have the similar purpose as
> Zcache(http://lwn.net/Articles/562254/) in some way.
Sorry, but that is unrelated.
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WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Greg Thelen <gthelen@google.com>,
Christoph Hellwig <hch@infradead.org>,
Hugh Dickins <hughd@google.com>, Jan Kara <jack@suse.cz>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan.kim@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Michel Lespinasse <walken@google.com>,
Seth Jennings <sjenning@linux.vnet.ibm.com>,
Roman Gushchin <klamm@yandex-team.ru>,
Ozgun Erdogan <ozgun@citusdata.com>,
Metin Doslu <metin@citusdata.com>,
Vlastimil Babka <vbabka@suse.cz>, Tejun Heo <tj@kernel.org>,
Linux-MM <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org,
Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch 0/8] mm: thrash detection-based file cache sizing v5
Date: Thu, 14 Nov 2013 10:53:37 -0500 [thread overview]
Message-ID: <5284F201.4040607@redhat.com> (raw)
In-Reply-To: <CAA_GA1df0sbaBvTPjfPB0Pqyc=KtFq98Qsg=r7NPRn5z=Qsw2g@mail.gmail.com>
On 11/12/2013 05:30 AM, Bob Liu wrote:
> Hi Johannes,
>
> On Fri, Oct 11, 2013 at 5:46 AM, Johannes Weiner <hannes@cmpxchg.org> wrote:
>> Future
>>
>> Right now we have a fixed ratio (50:50) between inactive and active
>> list but we already have complaints about working sets exceeding half
>> of memory being pushed out of the cache by simple used-once streaming
>> in the background. Ultimately, we want to adjust this ratio and allow
>> for a much smaller inactive list. These patches are an essential step
>> in this direction because they decouple the VMs ability to detect
>> working set changes from the inactive list size. This would allow us
>> to base the inactive list size on something more sensible, like the
>> combined readahead window size for example.
>>
>
> I found that this patchset have the similar purpose as
> Zcache(http://lwn.net/Articles/562254/) in some way.
Sorry, but that is unrelated.
--
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: Rik van Riel <riel@redhat.com>
To: Bob Liu <lliubbo@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Greg Thelen <gthelen@google.com>,
Christoph Hellwig <hch@infradead.org>,
Hugh Dickins <hughd@google.com>, Jan Kara <jack@suse.cz>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan.kim@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Michel Lespinasse <walken@google.com>,
Seth Jennings <sjenning@linux.vnet.ibm.com>,
Roman Gushchin <klamm@yandex-team.ru>,
Ozgun Erdogan <ozgun@citusdata.com>,
Metin Doslu <metin@citusdata.com>,
Vlastimil Babka <vbabka@suse.cz>, Tejun Heo <tj@kernel.org>,
Linux-MM <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org,
Linux-Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch 0/8] mm: thrash detection-based file cache sizing v5
Date: Thu, 14 Nov 2013 10:53:37 -0500 [thread overview]
Message-ID: <5284F201.4040607@redhat.com> (raw)
In-Reply-To: <CAA_GA1df0sbaBvTPjfPB0Pqyc=KtFq98Qsg=r7NPRn5z=Qsw2g@mail.gmail.com>
On 11/12/2013 05:30 AM, Bob Liu wrote:
> Hi Johannes,
>
> On Fri, Oct 11, 2013 at 5:46 AM, Johannes Weiner <hannes@cmpxchg.org> wrote:
>> Future
>>
>> Right now we have a fixed ratio (50:50) between inactive and active
>> list but we already have complaints about working sets exceeding half
>> of memory being pushed out of the cache by simple used-once streaming
>> in the background. Ultimately, we want to adjust this ratio and allow
>> for a much smaller inactive list. These patches are an essential step
>> in this direction because they decouple the VMs ability to detect
>> working set changes from the inactive list size. This would allow us
>> to base the inactive list size on something more sensible, like the
>> combined readahead window size for example.
>>
>
> I found that this patchset have the similar purpose as
> Zcache(http://lwn.net/Articles/562254/) in some way.
Sorry, but that is unrelated.
next prev parent reply other threads:[~2013-11-14 15:53 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-10 21:46 [patch 0/8] mm: thrash detection-based file cache sizing v5 Johannes Weiner
2013-10-10 21:46 ` [patch 1/8] fs: cachefiles: use add_to_page_cache_lru() Johannes Weiner
2013-10-10 21:46 ` [patch 2/8] lib: radix-tree: radix_tree_delete_item() Johannes Weiner
2013-10-10 21:46 ` [patch 3/8] mm: shmem: save one radix tree lookup when truncating swapped pages Johannes Weiner
2013-10-10 21:46 ` [patch 4/8] mm: filemap: move radix tree hole searching here Johannes Weiner
2013-10-10 21:46 ` [patch 5/8] mm + fs: prepare for non-page entries in page cache radix trees Johannes Weiner
2013-10-10 21:47 ` [patch 6/8] mm + fs: store shadow entries in page cache Johannes Weiner
2013-10-10 21:47 ` [patch 7/8] mm: thrash detection-based file cache sizing Johannes Weiner
2013-10-10 21:47 ` [patch 8/8] mm: workingset: keep shadow entries in check Johannes Weiner
2013-10-11 0:39 ` [patch 0/8] mm: thrash detection-based file cache sizing v5 Dave Chinner
2013-10-11 0:39 ` Dave Chinner
2013-10-14 21:42 ` Johannes Weiner
2013-10-14 21:42 ` Johannes Weiner
2013-10-15 1:41 ` Dave Chinner
2013-10-15 1:41 ` Dave Chinner
2013-10-15 10:27 ` Jan Kara
2013-10-15 10:27 ` Jan Kara
2013-10-15 17:41 ` Johannes Weiner
2013-10-15 17:41 ` Johannes Weiner
2013-10-15 23:41 ` Dave Chinner
2013-10-15 23:41 ` Dave Chinner
2013-10-16 2:05 ` Rik van Riel
2013-10-16 2:05 ` Rik van Riel
2013-10-16 2:05 ` Rik van Riel
2013-10-16 2:26 ` Dave Chinner
2013-10-16 2:26 ` Dave Chinner
2013-10-16 22:31 ` Johannes Weiner
2013-10-16 22:31 ` Johannes Weiner
2013-10-21 12:10 ` Dave Chinner
2013-10-21 12:10 ` Dave Chinner
2013-10-21 9:26 ` Vlastimil Babka
2013-10-21 9:26 ` Vlastimil Babka
2013-10-22 9:35 ` Johannes Weiner
2013-10-22 9:35 ` Johannes Weiner
2013-11-14 15:56 ` Rik van Riel
2013-11-14 15:56 ` Rik van Riel
2013-11-12 10:30 ` Bob Liu
2013-11-12 10:30 ` Bob Liu
2013-11-14 15:53 ` Rik van Riel [this message]
2013-11-14 15:53 ` Rik van Riel
2013-11-14 15:53 ` Rik van Riel
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