netdev - Re: [Linuxarm] Re: [PATCH RFC 0/7] add socket to netdev page frag recycling support

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Date:   Wed, 25 Aug 2021 21:05:58 -0700
From:   David Ahern <dsahern@...il.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     Yunsheng Lin <linyunsheng@...wei.com>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Marcin Wojtas <mw@...ihalf.com>, linuxarm@...neuler.org,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
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Subject: Re: [Linuxarm] Re: [PATCH RFC 0/7] add socket to netdev page frag
 recycling support

On 8/25/21 10:24 AM, Eric Dumazet wrote:
> On Wed, Aug 25, 2021 at 9:39 AM David Ahern <dsahern@...il.com> 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 <edumazet@...gle.com>
> 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.