Date: Sun, 3 Jun 2012 17:05:54 +0000 From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Jack F Vogel <jfv@freebsd.org> Cc: FreeBSD Networking Mailing List <freebsd-net@freebsd.org> Subject: ixgbe(4) intr and pps problems in at least HEAD Message-ID: <90B0A065-634A-47F5-A8B9-3D093865F48A@lists.zabbadoz.net>
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Hey Jack or anyone on net@,
having updated my sources of HEAD from Dec/Mar to something of last week
I get a lot of:
interrupt storm detected on "irq262:"; throttling interrupt source
Given Intel's driver REDAME I found online says to update the sysctl to =
this:
hw.intr_storm_threshold=3D9000
I did that. I then quickly ended up at 25k which still wasn't enough
so I added 2 more zeros to get my console unspammed.
Any idea what the cause for this could be? The few input pps also seem =
to
keep it quite busy, even if only distributed to a single queue and what =
netstat
reports is far from ideal.
The pps number it should be able to take should be way higher I feel and =
I am
sending it a load more pps anyway.
# netstat -I ix1 -w 1
input (ix1) output
packets errs idrops bytes packets errs bytes colls
114467 200089 0 23275412 113885 0 8458948 0
147135 206724 0 26074654 147010 0 10820024 0
176973 334783 0 37914940 176904 0 13117378 0
106443 274685 0 28386046 106781 0 8002984 0
35404 0 0 2492980 35236 0 2538270 0
172295 214024 0 28396162 171991 0 12616392 0
52870 201826 0 19069376 53563 0 4068360 0
182143 366926 0 40728536 181543 0 13530772 0
128465 231976 0 26673492 128992 0 9513468 0
26161 0 0 1841770 26204 0 1880830 0
115360 220160 0 24864314 115523 0 8562074 0
^C
12 root -92 - 0K 432K CPU1 1 474:32 100.00% =
intr{irq262: ix1:que }
0 root -92 0 0K 384K CPU0 0 226:12 100.00% =
kernel{ix1 que}
12 root -92 - 0K 432K CPU3 3 214:36 99.66% =
intr{irq264: ix1:que }
0 root -92 0 0K 384K - 2 464:29 98.29% kernel{ix1 =
que}
11 root 155 ki31 0K 64K RUN 2 82.9H 1.56% idle{idle: =
cpu2}
12 root -92 - 0K 432K WAIT 2 26:15 1.17% =
intr{irq263: ix1:que }
11 root 155 ki31 0K 64K RUN 0 84.0H 0.00% idle{idle: =
cpu0}
11 root 155 ki31 0K 64K RUN 3 82.4H 0.00% idle{idle: =
cpu3}
11 root 155 ki31 0K 64K RUN 1 79.5H 0.00% idle{idle: =
cpu1}
12 root -92 - 0K 432K RUN 0 26:34 0.00% =
intr{irq261: ix1:que }
17 root 16 - 0K 16K syncer 2 26:25 0.00% syncer
0 root -92 0 0K 384K - 3 17:30 0.00% kernel{ix1 =
que}
0 root -92 0 0K 384K RUN 2 16:09 0.00% kernel{em0 =
que}
0 root -92 0 0K 384K - 0 15:54 0.00% kernel{ix1 =
que}
12 root -60 - 0K 432K WAIT 1 10:38 0.00% intr{swi4: =
clock}
Is anyone seeing this as well or can reproduce it?
It's a
ix1@pci0:3:0:1: class=3D0x020000 card=3D0xa15f8086 chip=3D0x10c68086 =
rev=3D0x01 hdr=3D0x00
vendor =3D 'Intel Corporation'
device =3D '82598EB 10-Gigabit AF Dual Port Network Connection'
class =3D network
subclass =3D ethernet
with only 1 port used currently.
/bz
--=20
Bjoern A. Zeeb You have to have visions!
It does not matter how good you are. It matters what good you do!
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