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>=0A=0A> To: freebsd-hardware@freebsd=
..org=0A> Cc: freebsd-net@freebsd.org=0A> Sent: Friday, November 14, 2008 8:=
55:13 PM=0A> Subject: Re: IRQ31 and IRQ32 on HPDL585 running FreeBSD 7.0 ar=
e consuming HIGH CPU usage=0A> =0A> Won De Erick wrote:=0A> =0A> > 170=
02 1634 25720672 16423 0 1143508 0 0=0A> > 1694=
3 1643 25629892 16642 0 1160858 0 0=0A> > 16995=
1644 25708823 16539 0 1153782 0 0=0A> > 17026 =
1643 25758462 16606 0 1153342 0 0=0A> =0A> What do y=
ou use for generating the traffic?=0A> =0A=0AI used w-get in bombarding tcp=
traffic w/ thousand of sessions.=0A=0A> > However, network throughput didn=
't change in the two scenarios above.=0A> > Is there anything that I can te=
st to improve my network throughput.=0A> =0A> I'm not sure but you could ma=
ybe try disabling all but one of your CPUs=0A> and see if anything changes.=
It looks like you have at least 16 CPUs. On=0A> my machine, with 8 CPUs (2=
xquad core) I get roughly 150,000 PPS before I=0A> hit a similar single-CPU=
-bound network processing bottleneck (also with=0A> Intel=AE PRO/1000 PT/Se=
rver) - which is too low for my needs so I'm=0A> searching for a solution. =
In my case I don't see transmission errors.=0A=0Awill try this.=0A=0A=0A=0A=
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