Date: Sat, 23 Sep 2017 08:37:30 +0000 From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: "Stephen Hurd" <shurd@sasktel.net> Cc: "Stephen Hurd" <shurd@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r323942 - head/sys/net Message-ID: <6F5DC92C-2CF6-4A33-9663-BFECB7DB65F2@lists.zabbadoz.net> In-Reply-To: <283397c7-a01e-3776-7ed3-b64d68003d0b@sasktel.net> References: <201709230135.v8N1ZE6S063264@repo.freebsd.org> <B28D9879-4ECF-43E4-9A58-51F616CEC4BE@lists.zabbadoz.net> <283397c7-a01e-3776-7ed3-b64d68003d0b@sasktel.net>
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On 23 Sep 2017, at 6:32, Stephen Hurd wrote: > Bjoern A. Zeeb wrote: >> On 23 Sep 2017, at 1:35, Stephen Hurd wrote: >> >>> Author: shurd >>> Date: Sat Sep 23 01:35:14 2017 >>> New Revision: 323942 >>> URL: https://svnweb.freebsd.org/changeset/base/323942 >>> >>> Log: >>> Chain mbufs before passing to if_input() >>> >>> Build a list of mbufs to pass to if_input() after LRO. Results in >>> 12% small packet forwarding rate improvement. >> forwarding seems a confusing word here.. > > The test was small (64 byte frames) received on one interface, then > sent out on a different one using the net.inet.ip.forwarding sysctl > (controlled via the gateway_enable setting in rc.conf). Then this makes no sense as we don’t do LRO if forwarding is enabled on the machine; https://svnweb.freebsd.org/base/head/sys/netinet/tcp_lro.c?annotate=317390#l645
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