From: "Jörn Engel" <joern@logfs.org>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: mgorman@suse.de, linux-mm@kvack.org
Subject: Re: [RFC PATCH 0/6] Improving munlock() performance for large non-THP areas
Date: Mon, 5 Aug 2013 13:31:58 -0400 [thread overview]
Message-ID: <20130805173158.GD470@logfs.org> (raw)
In-Reply-To: <1375713125-18163-1-git-send-email-vbabka@suse.cz>
On Mon, 5 August 2013 16:31:59 +0200, Vlastimil Babka wrote:
>
> timedmunlock
> 3.11-rc3 3.11-rc3 3.11-rc3 3.11-rc3 3.11-rc3 3.11-rc3 3.11-rc3
> 0 1 2 3 4 5 6
> Elapsed min 3.38 ( 0.00%) 3.39 ( -0.14%) 3.00 ( 11.35%) 2.73 ( 19.48%) 2.72 ( 19.50%) 2.34 ( 30.78%) 2.16 ( 36.23%)
> Elapsed mean 3.39 ( 0.00%) 3.39 ( -0.05%) 3.01 ( 11.25%) 2.73 ( 19.54%) 2.73 ( 19.41%) 2.36 ( 30.30%) 2.17 ( 36.00%)
> Elapsed stddev 0.01 ( 0.00%) 0.00 ( 71.98%) 0.01 (-71.14%) 0.00 ( 89.12%) 0.01 (-48.55%) 0.03 (-277.27%) 0.01 (-85.75%)
> Elapsed max 3.41 ( 0.00%) 3.40 ( 0.39%) 3.04 ( 10.81%) 2.73 ( 19.96%) 2.76 ( 19.09%) 2.43 ( 28.64%) 2.20 ( 35.41%)
> Elapsed range 0.02 ( 0.00%) 0.01 ( 74.99%) 0.04 (-66.12%) 0.00 ( 88.12%) 0.03 (-39.24%) 0.09 (-274.85%) 0.04 (-81.04%)
Impressive numbers. Patches 1,2,4,6 look good to me (for whatever
that is worth). Patch 5 exceeded my review capacity for now, I will
give you feedback once my brain returns from vacation.
Thank you for the patchset! Work in this area is very much
appreciated.
JA?rn
--
The rabbit runs faster than the fox, because the rabbit is rinning for
his life while the fox is only running for his dinner.
-- Aesop
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next prev parent reply other threads:[~2013-08-05 19:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-05 14:31 [RFC PATCH 0/6] Improving munlock() performance for large non-THP areas Vlastimil Babka
2013-08-05 14:32 ` [RFC PATCH 1/6] mm: putback_lru_page: remove unnecessary call to page_lru_base_type() Vlastimil Babka
2013-08-05 14:32 ` [RFC PATCH 2/6] mm: munlock: remove unnecessary call to lru_add_drain() Vlastimil Babka
2013-08-05 14:32 ` [RFC PATCH 3/6] mm: munlock: batch non-THP page isolation and munlock+putback using pagevec Vlastimil Babka
2013-08-05 17:21 ` Jörn Engel
2013-08-06 13:27 ` Vlastimil Babka
2013-08-06 16:21 ` Jörn Engel
2013-08-05 14:32 ` [RFC PATCH 4/6] mm: munlock: batch NR_MLOCK zone state updates Vlastimil Babka
2013-08-05 17:23 ` Jörn Engel
2013-08-05 14:32 ` [RFC PATCH 5/6] mm: munlock: bypass per-cpu pvec for putback_lru_page Vlastimil Babka
2013-08-05 14:32 ` [RFC PATCH 6/6] mm: munlock: remove redundant get_page/put_page pair on the fast path Vlastimil Babka
2013-08-05 17:31 ` Jörn Engel [this message]
2013-08-06 16:39 ` [RFC PATCH 0/6] Improving munlock() performance for large non-THP areas Jörn Engel
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