From: Mel Gorman <mgorman@techsingularity.net>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
mhocko@kernel.org, vbabka@suse.cz, Aaron Lu <aaron.lu@intel.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] mremap: Avoid TLB flushing anonymous pages that are not in swap cache
Date: Tue, 5 Jun 2018 21:00:58 +0100 [thread overview]
Message-ID: <20180605200058.fy4oy5znf6j4pckj@techsingularity.net> (raw)
In-Reply-To: <9dc03a4b-d359-8817-a950-b98e246dcd95@intel.com>
On Tue, Jun 05, 2018 at 12:54:27PM -0700, Dave Hansen wrote:
> On 06/05/2018 12:51 PM, Mel Gorman wrote:
> > Using another testcase that simply calls mremap heavily with varying number
> > of threads, it was found that very broadly speaking that TLB shootdowns
> > were reduced by 31% on average throughout the entire test case but your
> > milage will vary.
>
> Looks good to me. Feel free to add my Reviewed-by.
Thanks, I'll send a proper v2 when I hear back from the customer on what
the impact on the real workload is.
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2018-06-05 20:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-05 17:13 Mel Gorman
2018-06-05 18:18 ` Dave Hansen
2018-06-05 19:12 ` Mel Gorman
2018-06-05 19:49 ` Dave Hansen
2018-06-05 19:51 ` Mel Gorman
2018-06-05 19:54 ` Dave Hansen
2018-06-05 20:00 ` Mel Gorman [this message]
2018-06-06 8:22 ` Michal Hocko
2018-06-05 19:53 ` Nadav Amit
2018-06-05 20:08 ` Mel Gorman
2018-06-05 22:53 ` Nadav Amit
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=20180605200058.fy4oy5znf6j4pckj@techsingularity.net \
--to=mgorman@techsingularity.net \
--cc=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=mhocko@kernel.org \
--cc=vbabka@suse.cz \
/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