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
| ||
|
Message-Id: <20121207.142004.1330913822593924898.davem@davemloft.net> Date: Fri, 07 Dec 2012 14:20:04 -0500 (EST) From: David Miller <davem@...emloft.net> To: willemb@...gle.com Cc: netdev@...r.kernel.org, edumazet@...gle.com, therbert@...gle.com Subject: Re: [PATCH net-next] rps: overflow prevention for saturated cpus From: Willem de Bruijn <willemb@...gle.com> Date: Thu, 6 Dec 2012 15:36:34 -0500 > This patch maintains flow affinity in normal conditions, but > trades it for throughput when a cpu becomes saturated. Then, packets > destined to that cpu (only) are redirected to the lightest loaded cpu > in the rxqueue's rps_map. This breaks flow affinity under high load > for some flows, in favor of processing packets up to the capacity > of the complete rps_map cpuset in all circumstances. We specifically built-in very strict checks to make sure we never deliver packets out-of-order. Those mechanisms must be used and enforced in any change of this nature. -- 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
Powered by blists - more mailing lists