netdev - Performance drop on SFC interface (around 30%)

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

Date:	Thu, 16 Jun 2016 15:23:29 +0200
From:	Otto Sabart <osabart@...hat.com>
To:	netdev@...r.kernel.org
Cc:	Jirka Hladky <jhladky@...hat.com>,
	Adam Okuliar <aokuliar@...hat.com>,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	Edward Cree <ecree@...arflare.com>,
	Bert Kenward <bkenward@...arflare.com>
Subject: Performance drop on SFC interface (around 30%)

Hello netdev,
we see a performance drop (about ~30%) on sfc driver (SFC9020) when
performing netperf TCP maerts test. It seems it started from 4.7-rc0.

Which commit/change could cause this regression? Any hints?

I opened a bugzilla [0] where you can find images with results.

[0] https://bugzilla.kernel.org/show_bug.cgi?id=120461

-- 
Ota