From: Minchan Kim <minchan.kim@gmail.com>
To: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 1/4] mm: add free_hot_cold_page_list helper
Date: Sat, 12 Nov 2011 08:32:33 +0900 [thread overview]
Message-ID: <CAEwNFnA_ZGRyrtZ_LRzz66hmes8r+g+JEHHRAKsKWci7He-+5A@mail.gmail.com> (raw)
In-Reply-To: <20111111123957.7371.72792.stgit@zurg>
On Fri, Nov 11, 2011 at 10:39 PM, Konstantin Khlebnikov
<khlebnikov@openvz.org> wrote:
> This patch adds helper free_hot_cold_page_list() to free list of 0-order pages.
> It frees pages directly from the list without temporary page-vector.
> It also calls trace_mm_pagevec_free() to simulate pagevec_free() behaviour.
>
> bloat-o-meter:
>
> add/remove: 1/1 grow/shrink: 1/3 up/down: 267/-295 (-28)
> function old new delta
> free_hot_cold_page_list - 264 +264
> get_page_from_freelist 2129 2132 +3
> __pagevec_free 243 239 -4
> split_free_page 380 373 -7
> release_pages 606 510 -96
> free_page_list 188 - -188
>
> v2: Remove list reinititialization.
> v3: Always free pages in reverse order.
> The most recently added struct page, the most likely to be hot.
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
--
Kind regards,
Minchan Kim
next prev parent reply other threads:[~2011-11-11 23:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-29 7:58 [PATCH] " Konstantin Khlebnikov
2011-08-26 22:21 ` Andrew Morton
2011-08-27 6:44 ` Konstantin Khlebnikov
2011-08-29 7:48 ` Minchan Kim
2011-10-31 20:14 ` Andrew Morton
2011-11-01 7:47 ` Konstantin Khlebnikov
2011-11-01 8:45 ` [PATCH v2] " Konstantin Khlebnikov
2011-11-10 23:42 ` Andrew Morton
2011-11-11 11:19 ` Konstantin Khlebnikov
2011-11-11 2:31 ` Hugh Dickins
2011-11-11 11:29 ` Konstantin Khlebnikov
2011-11-11 13:39 ` [PATCH v3 1/4] " Konstantin Khlebnikov
2011-11-11 23:32 ` Minchan Kim [this message]
2011-11-14 1:45 ` Hugh Dickins
2011-11-11 13:40 ` [PATCH v3 2/4] mm: remove unused pagevec_free Konstantin Khlebnikov
2011-11-11 23:33 ` Minchan Kim
2011-11-14 1:46 ` Hugh Dickins
2011-11-11 13:40 ` [PATCH v3 3/4] mm-tracepoint: rename page-free events Konstantin Khlebnikov
2011-11-11 23:36 ` Minchan Kim
2011-11-11 13:40 ` [PATCH v3 4/4] mm-tracepoint: fixup documentation and examples Konstantin Khlebnikov
2011-11-11 23:37 ` Minchan Kim
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