netdev - Re: [PATCH net-next 0/4] net/tls: small TX offload optimizations

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] [day] [month] [year] [list]

Date:   Sat, 07 Sep 2019 18:11:29 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        davejwatson@...com, borisp@...lanox.com, aviadye@...lanox.com,
        john.fastabend@...il.com, daniel@...earbox.net
Subject: Re: [PATCH net-next 0/4] net/tls: small TX offload optimizations

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Fri,  6 Sep 2019 22:29:56 -0700

> Hi!
> 
> This set brings small TLS TX device optimizations. The biggest
> gain comes from fixing a misuse of non temporal copy instructions.
> On a synthetic workload modelled after customer's RFC application
> I see 3-5% percent gain.

Series applied.

But if history is any indication I'd watch for how much this actually
helps or hurts universally.  We once tried to use non-temporal stores
for sendmsg/recvmsg copies and had to turn that off because it only
helped in certain situations on certain cpus and hurt in others.