From: Aaron Lu <aaron.lu@intel.com>
To: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Dave Hansen <dave.hansen@intel.com>,
Tim Chen <tim.c.chen@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Ying Huang <ying.huang@intel.com>
Subject: Re: [PATCH v2 0/5] mm: support parallel free of memory
Date: Fri, 17 Mar 2017 11:10:48 +0800 [thread overview]
Message-ID: <20170317031048.GC18964@aaronlu.sh.intel.com> (raw)
In-Reply-To: <c2e172b1-fb2a-57a0-0074-a07a61693e6c@suse.cz>
On Wed, Mar 15, 2017 at 03:56:02PM +0100, Vlastimil Babka wrote:
> I wonder if the difference would be larger if the parallelism was done
> on a higher level, something around unmap_page_range(). IIUC the current
I guess I misunderstand you in my last email - doing it at
unmap_page_range() level is essentially doing it at a per-VMA level
since it is the main function used in unmap_single_vma(). We have tried
that and felt that it's not flexible as the proposed approach since
it wouldn't parallize well for:
1 work load that uses only 1 or very few huge VMA;
2 work load that has a lot of small VMAs.
The code is nice and easy though(developed at v4.9 time frame):
next prev parent reply other threads:[~2017-03-17 3:10 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-15 8:59 [PATCH v2 0/5] mm: support parallel free of memory Aaron Lu
2017-03-15 9:00 ` [PATCH v2 1/5] mm: add tlb_flush_mmu_free_batches Aaron Lu
2017-03-15 9:00 ` [PATCH v2 2/5] mm: parallel free pages Aaron Lu
2017-03-15 9:42 ` Hillf Danton
2017-03-15 11:54 ` Aaron Lu
2017-03-15 9:00 ` [PATCH v2 3/5] mm: use a dedicated workqueue for the free workers Aaron Lu
2017-03-22 6:33 ` Minchan Kim
2017-03-22 8:41 ` Aaron Lu
2017-03-22 8:55 ` Minchan Kim
2017-03-22 13:43 ` Aaron Lu
2017-03-23 5:53 ` Minchan Kim
2017-03-23 15:38 ` Dave Hansen
2017-03-24 12:37 ` Aaron Lu
2017-03-15 9:00 ` [PATCH v2 4/5] mm: add force_free_pages in zap_pte_range Aaron Lu
2017-03-15 9:00 ` [PATCH v2 5/5] mm: add debugfs interface for parallel free tuning Aaron Lu
2017-03-15 14:18 ` [PATCH v2 0/5] mm: support parallel free of memory Michal Hocko
2017-03-15 15:44 ` Aaron Lu
2017-03-15 16:28 ` Michal Hocko
2017-03-15 21:38 ` Tim Chen
2017-03-16 9:07 ` Michal Hocko
2017-03-16 18:36 ` Tim Chen
2017-03-17 7:47 ` Michal Hocko
2017-03-17 8:07 ` Minchan Kim
2017-03-17 12:33 ` Aaron Lu
2017-03-17 12:59 ` Michal Hocko
2017-03-17 13:16 ` Peter Zijlstra
2017-03-17 12:53 ` Peter Zijlstra
2017-03-17 13:05 ` Michal Hocko
2017-03-21 14:54 ` Dave Hansen
2017-03-22 8:02 ` Aaron Lu
2017-03-24 7:04 ` Aaron Lu
2017-03-21 15:18 ` Tim Chen
2017-03-16 6:54 ` Aaron Lu
2017-03-16 7:34 ` Aaron Lu
2017-03-16 13:51 ` Aaron Lu
2017-03-16 14:14 ` Aaron Lu
2017-03-15 14:56 ` Vlastimil Babka
2017-03-15 15:50 ` Aaron Lu
2017-03-17 3:10 ` Aaron Lu [this message]
2017-03-16 19:38 ` Alex Thorlton
2017-03-17 2:21 ` Aaron Lu
2017-03-20 19:15 ` Alex Thorlton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170317031048.GC18964@aaronlu.sh.intel.com \
--to=aaron.lu@intel.com \
--cc=akpm@linux-foundation.org \
--cc=dave.hansen@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=tim.c.chen@intel.com \
--cc=vbabka@suse.cz \
--cc=ying.huang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).