Date: Fri, 14 Nov 2008 05:14:13 -0800 (PST) From: Won De Erick <won.derick@yahoo.com> To: Ivan Voras <ivoras@freebsd.org>, freebsd-hardware@freebsd.org Cc: freebsd-net@freebsd.org Subject: Re: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage Message-ID: <674901.2796.qm@web45801.mail.sp1.yahoo.com> References: <305614.76266.qm@web45809.mail.sp1.yahoo.com> <gfjoio$cf3$1@ger.gmane.org> <555333.76711.qm@web45806.mail.sp1.yahoo.com> <gfjseh$qqp$1@ger.gmane.org>
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> From: Ivan Voras <ivoras@freebsd.org> > To: freebsd-hardware@freebsd..org > Cc: freebsd-net@freebsd.org > Sent: Friday, November 14, 2008 8:55:13 PM > Subject: Re: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 are consuming HIGH CPU usage > > Won De Erick wrote: > > > 17002 1634 25720672 16423 0 1143508 0 0 > > 16943 1643 25629892 16642 0 1160858 0 0 > > 16995 1644 25708823 16539 0 1153782 0 0 > > 17026 1643 25758462 16606 0 1153342 0 0 > > What do you use for generating the traffic? > I used w-get in bombarding tcp traffic w/ thousand of sessions. > > However, network throughput didn't change in the two scenarios above. > > Is there anything that I can test to improve my network throughput. > > I'm not sure but you could maybe try disabling all but one of your CPUs > and see if anything changes. It looks like you have at least 16 CPUs. On > my machine, with 8 CPUs (2xquad core) I get roughly 150,000 PPS before I > hit a similar single-CPU-bound network processing bottleneck (also with > Intel® PRO/1000 PT/Server) - which is too low for my needs so I'm > searching for a solution. In my case I don't see transmission errors. will try this.help
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