From: Rik van Riel <riel@redhat.com>
To: Ebru Akagunduz <ebru.akagunduz@gmail.com>, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, kirill.shutemov@linux.intel.com,
n-horiguchi@ah.jp.nec.com, aarcange@redhat.com,
iamjoonsoo.kim@lge.com, xiexiuqi@huawei.com, gorcunov@openvz.org,
linux-kernel@vger.kernel.org, mgorman@suse.de,
rientjes@google.com, vbabka@suse.cz,
aneesh.kumar@linux.vnet.ibm.com, hughd@google.com,
hannes@cmpxchg.org, mhocko@suse.cz, boaz@plexistor.com,
raindel@mellanox.com
Subject: Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead
Date: Mon, 14 Sep 2015 15:47:25 -0400 [thread overview]
Message-ID: <55F7244D.9010605@redhat.com> (raw)
In-Reply-To: <1442259105-4420-3-git-send-email-ebru.akagunduz@gmail.com>
On 09/14/2015 03:31 PM, Ebru Akagunduz wrote:
> This patch introduces new sysfs integer knob
> /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_swap
> which makes optimistic check for swapin readahead to
> increase thp collapse rate. Before getting swapped
> out pages to memory, checks them and allows up to a
> certain number. It also prints out using tracepoints
> amount of unmapped ptes.
This may need some more refinement in the future, but your
patch series seems to create a large improvement over what
we have now.
> Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
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WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Ebru Akagunduz <ebru.akagunduz@gmail.com>, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, kirill.shutemov@linux.intel.com,
n-horiguchi@ah.jp.nec.com, aarcange@redhat.com,
iamjoonsoo.kim@lge.com, xiexiuqi@huawei.com, gorcunov@openvz.org,
linux-kernel@vger.kernel.org, mgorman@suse.de,
rientjes@google.com, vbabka@suse.cz,
aneesh.kumar@linux.vnet.ibm.com, hughd@google.com,
hannes@cmpxchg.org, mhocko@suse.cz, boaz@plexistor.com,
raindel@mellanox.com
Subject: Re: [RFC v5 2/3] mm: make optimistic check for swapin readahead
Date: Mon, 14 Sep 2015 15:47:25 -0400 [thread overview]
Message-ID: <55F7244D.9010605@redhat.com> (raw)
In-Reply-To: <1442259105-4420-3-git-send-email-ebru.akagunduz@gmail.com>
On 09/14/2015 03:31 PM, Ebru Akagunduz wrote:
> This patch introduces new sysfs integer knob
> /sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_swap
> which makes optimistic check for swapin readahead to
> increase thp collapse rate. Before getting swapped
> out pages to memory, checks them and allows up to a
> certain number. It also prints out using tracepoints
> amount of unmapped ptes.
This may need some more refinement in the future, but your
patch series seems to create a large improvement over what
we have now.
> Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
next prev parent reply other threads:[~2015-09-14 19:47 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-14 19:31 [RFC v5 0/3] mm: make swapin readahead to gain more thp performance Ebru Akagunduz
2015-09-14 19:31 ` Ebru Akagunduz
2015-09-14 19:31 ` [RFC v5 1/3] mm: add tracepoint for scanning pages Ebru Akagunduz
2015-09-14 19:31 ` Ebru Akagunduz
2015-09-14 19:31 ` [RFC v5 2/3] mm: make optimistic check for swapin readahead Ebru Akagunduz
2015-09-14 19:31 ` Ebru Akagunduz
2015-09-14 19:47 ` Rik van Riel [this message]
2015-09-14 19:47 ` Rik van Riel
2015-09-14 21:33 ` Andrew Morton
2015-09-14 21:33 ` Andrew Morton
2015-09-15 20:08 ` Ebru Akagunduz
2015-09-15 20:08 ` Ebru Akagunduz
2015-09-14 19:31 ` [RFC v5 3/3] mm: make swapin readahead to improve thp collapse rate Ebru Akagunduz
2015-09-14 19:31 ` Ebru Akagunduz
2015-09-17 13:28 ` Kirill A. Shutemov
2015-09-17 13:28 ` Kirill A. Shutemov
2015-09-17 15:13 ` Kirill A. Shutemov
2015-09-17 15:13 ` Kirill A. Shutemov
2015-09-14 21:41 ` [RFC v5 0/3] mm: make swapin readahead to gain more thp performance Andrew Morton
2015-09-14 21:41 ` Andrew Morton
2016-02-25 7:36 ` Hugh Dickins
2016-02-25 7:36 ` Hugh Dickins
2016-02-25 22:35 ` Rik van Riel
2016-02-25 23:30 ` Ebru Akagunduz
2016-02-25 23:30 ` Ebru Akagunduz
2016-02-26 6:17 ` Hugh Dickins
2016-02-26 14:51 ` Rik van Riel
2016-03-03 22:08 ` Ebru Akagunduz
2016-03-03 22:08 ` Ebru Akagunduz
2016-02-25 23:16 ` Ebru Akagunduz
2016-02-25 23:16 ` Ebru Akagunduz
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