netdev - Re: [ofa-general] Re: [PATCH 2/3][NET

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, 10 Oct 2007 11:16:44 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	David Miller <davem@...emloft.net>
Cc:	andi@...stfloor.org, hadi@...erus.ca,
	shemminger@...ux-foundation.org, jeff@...zik.org,
	johnpol@....mipt.ru, herbert@...dor.apana.org.au,
	gaagaan@...il.com, Robert.Olsson@...a.slu.se,
	netdev@...r.kernel.org, rdreier@...co.com,
	peter.p.waskiewicz.jr@...el.com, mcarlson@...adcom.com,
	jagana@...ibm.com, general@...ts.openfabrics.org,
	mchan@...adcom.com, tgraf@...g.ch, randy.dunlap@...cle.com,
	sri@...ibm.com, kaber@...sh.net
Subject: Re: [ofa-general] Re: [PATCH 2/3][NET_BATCH] net core use batching

> A 256 entry TX hw queue fills up trivially on 1GB and 10GB, but if you

With TSO really? 

> increase the size much more performance starts to go down due to L2
> cache thrashing.

Another possibility would be to consider using cache avoidance
instructions while updating the TX ring (e.g. write combining 
on x86) 

-Andi

-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html