netdev - Re: [PATCH net-next 2/2] udp: implement and use per cpu rx skbs cache

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 18 Apr 2018 12:21:37 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Cc:     "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next 2/2] udp: implement and use per cpu rx skbs cache

On 04/18/2018 10:15 AM, Paolo Abeni wrote:
is not appealing to me :/
> 
> Thank you for the feedback.
> Sorry for not being clear about it, but knotd is using SO_REUSEPORT and
> the above tests are leveraging it.
> 
> That 5% is on top of that 300%.

Then there is something wrong.

Adding copies should not increase performance.

If it does, there is certainly another way, reaching 10% instead of 5%