Date: Tue, 31 Mar 2009 04:48:35 -0700 (PDT) From: Barney Cordoba <barney_cordoba@yahoo.com> To: Steve Bertrand <steve@ibctech.ca> Cc: isp@freebsd.org Subject: Re: ISPs? Message-ID: <808603.91207.qm@web63905.mail.re1.yahoo.com> In-Reply-To: <49D15AC3.7060607@ibctech.ca>
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--- On Mon, 3/30/09, Steve Bertrand <steve@ibctech.ca> wrote: > From: Steve Bertrand <steve@ibctech.ca> > Subject: Re: ISPs? > To: barney_cordoba@yahoo.com > Cc: isp@freebsd.org > Date: Monday, March 30, 2009, 7:50 PM > Barney Cordoba wrote: > >> From: Steve Bertrand <steve@ibctech.ca> > > >>>> In production, at 0.00% interrupt, > 686Mbps, <2% > >> load, 133Kpps. > >>> How many interfaces are you routing inbetween? > >> Currently: > >> > >> - 7 physical 'em' > >> - 6 loopback > >> - 1 discard > >> - 14 sub-ints off of the em devices > >> > > > > Obviously those load numbers are either incorrect or > > you're leaving something out. What version of the > > OS are you running? How many cores? What are the > values > > of your idle threads? > > Although the number of virtual interfaces has changed > slightly since my > original post: > > CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (3000.12-MHz > 686-class CPU) > Origin = "GenuineIntel" Id = 0xf65 Stepping = > 5 > Logical CPUs per core: 2 > real memory = 2139025408 (2039 MB) > avail memory = 2087784448 (1991 MB) > > router# cat /var/run/dmesg.boot | grep em > /var/run/dmesg.boot | grep Eth > em0: Ethernet address: 00:60:e0:42:b1:76 > em1: Ethernet address: 00:60:e0:42:b1:77 > em2: Ethernet address: 00:60:e0:42:b1:78 > em3: Ethernet address: 00:60:e0:42:b1:79 > em4: Ethernet address: 00:60:e0:42:b1:7a > em5: Ethernet address: 00:60:e0:42:b1:7b > em6: Ethernet address: 00:60:e0:42:b1:7c > > router# grep interface /usr/local/etc/quagga/*.conf > > zebra.conf:interface disc0 > zebra.conf:interface em0 > zebra.conf:interface em1 > zebra.conf:interface em1.10 > zebra.conf:interface em1.11 > zebra.conf:interface em1.99 > zebra.conf:interface em2 > zebra.conf:interface em2.98 > zebra.conf:interface em3 > zebra.conf:interface em3.300 > zebra.conf:interface em4 > zebra.conf:interface em5 > zebra.conf:interface em5.107 > zebra.conf:interface em5.162 > zebra.conf:interface em5.163 > zebra.conf:interface em5.164 > zebra.conf:interface em5.303 > zebra.conf:interface em6 > zebra.conf:interface gif0 > zebra.conf:interface gif1 > zebra.conf:interface lo0 > zebra.conf:interface lo1 > zebra.conf:interface lo2 > zebra.conf:interface lo3 > zebra.conf:interface lo6 > zebra.conf:interface lo10 > > I can reproduce the statistics tomorrow. Just tell me > exactly what > output from what commands you are interested in. uname would be useful, as you didn't mention what vers of FreeBSD you have. run 'top -S' in FreeBSD 7 or 'top -SH' in FreeBSD 8. Look at the cpu idle threads, and also "other" threads that may show significant usage. The numbers rarely add up as there are accounting issues. But FreeBSD 7 doesn't account for interrupt usage the same as previous versions. I never used 5 or 6 (mainly because they sucked) so I'm not sure when it changed. the em driver in 7 and 8 uses a newfangled concept of "interrupt filters" so you should see a queue task. But again, I'm not sure what version it was changed. Barney
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