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Wed, 25 Aug 2021 21:06:04 -0700 (PDT) Subject: Re: [Linuxarm] Re: [PATCH RFC 0/7] add socket to netdev page frag recycling support To: Eric Dumazet Cc: Yunsheng Lin , David Miller , Jakub Kicinski , Alexander Duyck , Russell King , Marcin Wojtas , linuxarm@openeuler.org, Yisen Zhuang , Salil Mehta , Thomas Petazzoni , Jesper Dangaard Brouer , Ilias Apalodimas , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Andrew Morton , Peter Zijlstra , Will Deacon , Matthew Wilcox , Vlastimil Babka , Fenghua Yu , Roman Gushchin , Peter Xu , "Tang, Feng" , Jason Gunthorpe , mcroce@microsoft.com, Hugh Dickins , Jonathan Lemon , Alexander Lobakin , Willem de Bruijn , wenxu , Cong Wang , Kevin Hao , Aleksandr Nogikh , Marco Elver , Yonghong Song , kpsingh@kernel.org, Andrii Nakryiko , Martin KaFai Lau , Song Liu , netdev , LKML , bpf , chenhao288@hisilicon.com, Hideaki YOSHIFUJI , David Ahern , memxor@gmail.com, linux@rempel-privat.de, Antoine Tenart , Wei Wang , Taehee Yoo , Arnd Bergmann , Mat Martineau , aahringo@redhat.com, ceggers@arri.de, yangbo.lu@nxp.com, Florian Westphal , xiangxia.m.yue@gmail.com, linmiaohe , Christoph Hellwig References: <1629257542-36145-1-git-send-email-linyunsheng@huawei.com> <2cf4b672-d7dc-db3d-ce90-15b4e91c4005@huawei.com> <4b2ad6d4-8e3f-fea9-766e-2e7330750f84@huawei.com> <5fdc5223-7d67-fed7-f691-185dcb2e3d80@gmail.com> <2d2154f4-c735-a9b3-7940-f8830fee6229@gmail.com> From: David Ahern Message-ID: Date: Wed, 25 Aug 2021 21:05:58 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/25/21 10:24 AM, Eric Dumazet wrote: > On Wed, Aug 25, 2021 at 9:39 AM David Ahern wrote: >> >> On 8/25/21 9:32 AM, Eric Dumazet wrote: > >>> >> >> thanks for the pointer. I need to revisit my past attempt to get iperf3 >> working with hugepages. > > ANother pointer, just in case this helps. > > commit 72653ae5303c626ca29fcbcbb8165a894a104adf > Author: Eric Dumazet > Date: Thu Aug 20 10:11:17 2020 -0700 > > selftests: net: tcp_mmap: Use huge pages in send path > very helpful. Thanks. Added support to iperf3, and it does show a big drop in cpu utilization.