From: "Arnd Bergmann" <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org, "Yu Zhao" <yuzhao@google.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
"Andi Kleen" <ak@linux.intel.com>,
"Aneesh Kumar" <aneesh.kumar@linux.ibm.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
"Hillf Danton" <hdanton@sina.com>, "Jens Axboe" <axboe@kernel.dk>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Jonathan Corbet" <corbet@lwn.net>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Matthew Wilcox" <willy@infradead.org>,
"Mel Gorman" <mgorman@suse.de>,
"Michael Larabel" <Michael@michaellarabel.com>,
"Michal Hocko" <mhocko@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
"Tejun Heo" <tj@kernel.org>, "Vlastimil Babka" <vbabka@suse.cz>,
"Will Deacon" <will@kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, x86@kernel.org,
page-reclaim@google.com
Subject: Re: OpenWrt / MIPS benchmark with MGLRU
Date: Wed, 31 Aug 2022 14:12:59 +0200 [thread overview]
Message-ID: <b48f5edd-7f6e-48e3-9f72-61cd8e1a21e7@www.fastmail.com> (raw)
In-Reply-To: <20220831041731.3836322-1-yuzhao@google.com>
On Wed, Aug 31, 2022, at 6:17 AM, Yu Zhao wrote:
>
> Rational
> ========
> 1. OpenWrt is the most popular distro for WiFi routers; many of its
> targets use big endianness [1].
> 2. 4 out of the top 5 bestselling WiFi routers in the US use MIPS [2];
> MIPS uses software-managed TLB.
> 3. Memcached is the best available memory benchmark on OpenWrt;
> admittedly such a use case is very limited in the real world.
>
> Hardware
> ========
> DUT: Ubiquiti EdgeRouter (ER-8) [3]
I don't know if it makes any difference to your findings, but
I would point out the test hardware is neither representative
of most devices supported by OpenWRT, nor those on the amazon
best-seller list that I see looking from Germany:
Five of the top-10 devices on that list are arm64 (little-endian,
hardware TLB walker, typically 512MB of RAM), the others are
mips32 (typically only 128MB, mostly single-core) and only
the oldest one (Archer C7) of them is big-endian. I would not
expect endianness to make any difference, but the 16x smaller
memory of typical mips devices (ath79, mt76) might.
Arnd
next prev parent reply other threads:[~2022-08-31 12:13 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-15 7:13 [PATCH v14 00/14] Multi-Gen LRU Framework Yu Zhao
2022-08-15 7:13 ` [PATCH v14 01/14] mm: x86, arm64: add arch_has_hw_pte_young() Yu Zhao
2022-08-15 7:13 ` [PATCH v14 02/14] mm: x86: add CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG Yu Zhao
2022-08-15 7:13 ` [PATCH v14 03/14] mm/vmscan.c: refactor shrink_node() Yu Zhao
2022-08-15 7:13 ` [PATCH v14 04/14] Revert "include/linux/mm_inline.h: fold __update_lru_size() into its sole caller" Yu Zhao
2022-08-15 7:13 ` [PATCH v14 05/14] mm: multi-gen LRU: groundwork Yu Zhao
2022-08-15 7:13 ` [PATCH v14 06/14] mm: multi-gen LRU: minimal implementation Yu Zhao
2022-08-15 7:13 ` [PATCH v14 07/14] mm: multi-gen LRU: exploit locality in rmap Yu Zhao
2022-09-01 9:18 ` Nadav Amit
2022-09-02 1:17 ` Yu Zhao
2022-09-02 1:28 ` Yu Zhao
2022-08-15 7:13 ` [PATCH v14 08/14] mm: multi-gen LRU: support page table walks Yu Zhao
2022-10-13 15:04 ` Peter Zijlstra
2022-10-19 5:51 ` Yu Zhao
2022-10-19 17:40 ` Linus Torvalds
2022-10-20 14:13 ` Peter Zijlstra
2022-10-20 17:29 ` Yu Zhao
2022-10-20 17:35 ` Linus Torvalds
2022-10-20 18:55 ` Peter Zijlstra
2022-10-21 2:10 ` Linus Torvalds
2022-10-21 3:38 ` Matthew Wilcox
2022-10-21 16:50 ` Linus Torvalds
2022-10-23 14:44 ` David Gow
2022-10-23 17:55 ` Maciej W. Rozycki
2022-10-23 18:35 ` Linus Torvalds
2022-10-24 7:30 ` Arnd Bergmann
2022-10-25 16:28 ` Maciej W. Rozycki
2022-10-26 15:43 ` Arnd Bergmann
2022-10-27 23:08 ` Maciej W. Rozycki
2022-10-28 7:27 ` Arnd Bergmann
2022-10-21 10:12 ` Peter Zijlstra
2022-10-24 18:20 ` Gareth Poole
2022-10-24 19:28 ` Serentty
2022-08-15 7:13 ` [PATCH v14 09/14] mm: multi-gen LRU: optimize multiple memcgs Yu Zhao
2022-08-15 7:13 ` [PATCH v14 10/14] mm: multi-gen LRU: kill switch Yu Zhao
2022-08-15 7:13 ` [PATCH v14 11/14] mm: multi-gen LRU: thrashing prevention Yu Zhao
2022-08-15 7:13 ` [PATCH v14 12/14] mm: multi-gen LRU: debugfs interface Yu Zhao
2022-08-15 7:13 ` [PATCH v14 13/14] mm: multi-gen LRU: admin guide Yu Zhao
2022-08-15 9:06 ` Bagas Sanjaya
2022-08-15 9:12 ` Mike Rapoport
2022-08-17 22:46 ` Yu Zhao
2022-09-20 7:43 ` Bagas Sanjaya
2022-08-15 7:13 ` [PATCH v14 14/14] mm: multi-gen LRU: design doc Yu Zhao
2022-08-15 9:07 ` Bagas Sanjaya
2022-08-31 4:17 ` OpenWrt / MIPS benchmark with MGLRU Yu Zhao
2022-08-31 12:12 ` Arnd Bergmann [this message]
2022-08-31 15:13 ` Dave Hansen
2022-08-31 22:18 ` Yu Zhao
2022-09-12 0:08 ` [PATCH v14 00/14] Multi-Gen LRU Framework Andrew Morton
2022-09-15 17:56 ` Yu Zhao
2022-09-18 20:40 ` Yu Zhao
2022-09-18 23:47 ` Andrew Morton
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=b48f5edd-7f6e-48e3-9f72-61cd8e1a21e7@www.fastmail.com \
--to=arnd@arndb.de \
--cc=Michael@michaellarabel.com \
--cc=ak@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=aneesh.kumar@linux.ibm.com \
--cc=axboe@kernel.dk \
--cc=catalin.marinas@arm.com \
--cc=corbet@lwn.net \
--cc=dave.hansen@linux.intel.com \
--cc=hannes@cmpxchg.org \
--cc=hdanton@sina.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mgorman@suse.de \
--cc=mhocko@kernel.org \
--cc=page-reclaim@google.com \
--cc=peterz@infradead.org \
--cc=rppt@kernel.org \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=vbabka@suse.cz \
--cc=will@kernel.org \
--cc=willy@infradead.org \
--cc=x86@kernel.org \
--cc=yuzhao@google.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).