Date: Thu, 26 Apr 2012 11:07:23 -0700 From: Sean Bruno <seanbru@yahoo-inc.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Cc: Jack Vogel <jfvogel@gmail.com>, John Baldwin <jhb@freebsd.org> Subject: igb(4) at peak in big purple Message-ID: <1335463643.2727.10.camel@powernoodle-l7.corp.yahoo.com>
next in thread | raw e-mail | index | archive | help
8 core box with 2 igb(4) interfaces serving internet traffic in/out over here in Yahoo land. This is configuring igb(4) allow 32k TXD/RXD descriptors(but only configuring for 8k), 4 queues per interface and changing the logic of the call to bus_bind_intr() such that it will iterate over all cpus in the system: http://people.freebsd.org/~sbruno/if_igb.c.txt http://people.freebsd.org/~sbruno/igb_stats.txt We're seeing >100MB/s which is very nice. Thanks! I note form top that igb0 queue 0 is always "more busy" than any other queue, there appears to be a second kernel igb0 "queue" process/thread that appears to be moderately busy and 3 kernel igb0 "queue" processes/threads that appear to be doing nothing in particular. There are not causing issues ... I'm just curious if this is meaningful to anyone or indicative of interesting things. Sean
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1335463643.2727.10.camel>