From: Johannes Weiner <hannes@cmpxchg.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-mm@kvack.org, Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
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>,
Rik van Riel <riel@redhat.com>,
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>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 9/9] mm: workingset: keep shadow entries in check
Date: Wed, 14 Aug 2013 10:41:46 -0400 [thread overview]
Message-ID: <20130814144146.GA28858@cmpxchg.org> (raw)
In-Reply-To: <20130811235631.GO19750@two.firstfloor.org>
Hey Andi!
On Mon, Aug 12, 2013 at 01:56:31AM +0200, Andi Kleen wrote:
>
> I really like the idea of using the spare slots in the radix tree
> for something useful. It's amazing we haven't used that before.
>
> I wonder if with some clever encoding even more information could be fit?
What do you have in mind?
> e.g. I assume you don't really need all bits of the refault distance,
> just a good enough approximation.
>
> -Andi
> --
> ak@linux.intel.com -- Speaking for myself only.
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WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-mm@kvack.org, Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
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>,
Rik van Riel <riel@redhat.com>,
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>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 9/9] mm: workingset: keep shadow entries in check
Date: Wed, 14 Aug 2013 10:41:46 -0400 [thread overview]
Message-ID: <20130814144146.GA28858@cmpxchg.org> (raw)
In-Reply-To: <20130811235631.GO19750@two.firstfloor.org>
Hey Andi!
On Mon, Aug 12, 2013 at 01:56:31AM +0200, Andi Kleen wrote:
>
> I really like the idea of using the spare slots in the radix tree
> for something useful. It's amazing we haven't used that before.
>
> I wonder if with some clever encoding even more information could be fit?
What do you have in mind?
> e.g. I assume you don't really need all bits of the refault distance,
> just a good enough approximation.
>
> -Andi
> --
> ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2013-08-14 14:41 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-06 22:44 [patch 0/9] mm: thrash detection-based file cache sizing v3 Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 1/9] lib: radix-tree: radix_tree_delete_item() Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 2/9] mm: shmem: save one radix tree lookup when truncating swapped pages Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 3/9] mm: filemap: move radix tree hole searching here Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 4/9] mm + fs: prepare for non-page entries in page cache radix trees Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 5/9] mm + fs: store shadow entries in page cache Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 6/9] mm + fs: provide shadow pages to page cache allocations Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 7/9] mm: make global_dirtyable_memory() available to other mm code Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-06 22:44 ` [patch 8/9] mm: thrash detection-based file cache sizing Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-09 22:49 ` Andrew Morton
2013-08-09 22:49 ` Andrew Morton
2013-08-12 16:00 ` Johannes Weiner
2013-08-12 16:00 ` Johannes Weiner
2013-08-11 21:57 ` Vlastimil Babka
2013-08-11 21:57 ` Vlastimil Babka
2013-08-12 16:27 ` Johannes Weiner
2013-08-12 16:27 ` Johannes Weiner
2013-08-06 22:44 ` [patch 9/9] mm: workingset: keep shadow entries in check Johannes Weiner
2013-08-06 22:44 ` Johannes Weiner
2013-08-11 23:56 ` Andi Kleen
2013-08-11 23:56 ` Andi Kleen
2013-08-14 14:41 ` Johannes Weiner [this message]
2013-08-14 14:41 ` Johannes Weiner
2013-08-09 22:53 ` [patch 0/9] mm: thrash detection-based file cache sizing v3 Andrew Morton
2013-08-09 22:53 ` Andrew Morton
2013-08-10 1:39 ` Ozgun Erdogan
2013-08-12 22:15 ` Johannes Weiner
2013-08-12 22:15 ` Johannes Weiner
-- strict thread matches above, loose matches on Subject: below --
2013-08-17 19:31 [patch 9/9] mm: thrash detection-based file cache sizing v4 Johannes Weiner
2013-08-17 19:31 ` [patch 9/9] mm: workingset: keep shadow entries in check Johannes Weiner
2013-08-17 19:31 ` Johannes Weiner
2013-08-20 20:59 ` Andrew Morton
2013-08-20 20:59 ` Andrew Morton
2013-08-22 9:48 ` Johannes Weiner
2013-08-22 9:48 ` Johannes Weiner
2013-08-06 22:22 [patch 0/9] mm: thrash detection-based file cache sizing v3 Johannes Weiner
2013-08-06 22:22 ` [patch 9/9] mm: workingset: keep shadow entries in check Johannes Weiner
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