netdev - Re: Custom hardware Qdisc...

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:	Fri, 11 Dec 2009 17:05:56 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	ddaney@...iumnetworks.com
Cc:	netdev@...r.kernel.org
Subject: Re: Custom hardware Qdisc...

From: David Daney <ddaney@...iumnetworks.com>
Date: Fri, 11 Dec 2009 16:58:50 -0800

> David Miller wrote:
>> From: David Daney <ddaney@...iumnetworks.com>
>> Date: Fri, 11 Dec 2009 10:26:08 -0800
>> 
>>> Our hardware (Octeon SOC) has fairly flexible packet output queuing
>>> that can be done completely in hardware.
>> You haven't described sufficiently what your hardware is
>> capable of.
>> 
> 
> Up to 16 output queues per port. With (almost) any combination of
> absolute and weighted priorities between the various queues.

It sounds like these queues could be configured to have equal
priorities and thus be used as purely a TX multiqueue scheme
for better scalability.

I suspect that doing that alone will fix the qdisc cache line bouncing
you mention.
--
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