So why not get a real 10gb/s card? RJ45 10gig is here,
and it works a lot better than LAGG.
If you want to get more than 1Gb/s on a single connection,
you'd need to use roundrobin, which will alternate packets
without concern for ordering. Purists will argue against it,
but it does work and modern TCP stacks know how to deal
with out of order packets.
ifconfig lagg0 laggproto roundrobin laggport em0 laggport em1
BC
--------------------------------------------
On Thu, 7/11/13, isp <ml...@ukr.net> wrote:
Subject: Re[2]: FreeBSD router problems
To: "Alan Somers" <asom...@freebsd.org>
Cc: freebsd-net@freebsd.org
Date: Thursday, July 11, 2013, 2:11 PM
I have a real network with more than 4 000 users. In normal
case, when I
have two 1Gbps routers, and I split VLAN's between them
total bandwidth
if growing up to 1.7 Gbps.
--- Incoming mail ---
From: "Alan Somers" <asom...@freebsd.org>
Date: 11 July 2013, 21:00:41
How are you benchmarking it? Each TCP connection only
uses one member
of a lagg port. So if you want to see > 1 Gbps,
you'll need to
benchmark with multiple TCP connections. You may also
need multiple
systems; I don't know the full details of LACP.
On Thu, Jul 11, 2013 at 11:32 AM, isp < ml...@ukr.net
> wrote:
>
>
>
> Hi! I have a problem with my FreeBSD router, I can't
get more than 1 Gbps
> throught it, but I have 2 Gbps LAGG on it. There are
only 27 IPFW rules
> (NAT+Shaping). IPoE only.
> lagg0 (VLAN's + shaping) - two 'igb' adapters
> lagg1 (NAT, tso if off) - two 'em' adapters
>
> I tried to switch off dummynet, but it doesn't helps.
>
> # uname -a
> [code]FreeBSD router 9.1-RELEASE-p3 FreeBSD
9.1-RELEASE-p3 #0: Tue Apr 30
> 20:02:00 EEST 2013
root@south:/usr/obj/usr/src/sys/ROUTER
amd64
>
> # top -aSPHI
> last pid: 91712; load averages: 2.18,
2.06,
> 1.97
> up 20+22:28:36 17:40:22
> 120 processes: 7 running, 87 sleeping, 26 waiting
> CPU 0: 0.0% user, 0.0% nice, 1.6%
system, 38.6% interrupt, 59.8% idle
> CPU 1: 0.0% user, 0.0% nice, 7.1%
system, 37.0% interrupt, 55.9% idle
> CPU 2: 0.0% user, 0.0% nice, 3.9%
system, 38.6% interrupt, 57.5% idle
> CPU 3: 0.0% user, 0.0% nice, 15.7% system,
26.8% interrupt, 57.5% idle
> Mem: 59M Active, 1102M Inact, 942M Wired, 800M Buf,
5529M Free
> Swap: 16G Total, 16G Free
>
> PID USERNAME PRI NICE SIZE
RES
STATE C TIME WCPU
COMMAND
> 12 root -72
- 0K 448K RUN
1 153:39 72.22% [intr{swi1:
> netisr 0}]
> 11 root 155 ki31
0K 64K RUN
1 494.2H 65.19% [idle{idle:
> cpu1}]
> 11 root 155 ki31
0K 64K CPU2 2
494.3H 64.65% [idle{idle:
> cpu2}]
> 11 root 155 ki31
0K 64K RUN
0 493.3H 63.38% [idle{idle:
> cpu0}]
> 11 root 155 ki31
0K 64K CPU3 3
496.4H 62.55% [idle{idle:
> cpu3}]
> 12 root -92
- 0K 448K
WAIT 2 58:49 9.38% [intr{irq266:
> igb0:que}]
> 12 root -92
- 0K 448K
WAIT 2 59:32 9.03% [intr{irq271:
> igb1:que}]
> 12 root -92
- 0K 448K
CPU1 1 59:09 8.94% [intr{irq265:
> igb0:que}]
> 12 root -92
- 0K 448K
WAIT 3 57:52 8.01% [intr{irq272:
> igb1:que}]
> 12 root -92
- 0K 448K
WAIT 1 59:32 7.96% [intr{irq270:
> igb1:que}]
> 12 root -92
- 0K 448K
WAIT 3 55:47 7.81% [intr{irq267:
> igb0:que}]
> 12 root -92
- 0K 448K
WAIT 0 55:24 7.23% [intr{irq264:
> igb0:que}]
> 12 root -92
- 0K 448K
WAIT 0 56:57 6.69% [intr{irq269:
> igb1:que}]
> 12 root -92
- 0K 448K
WAIT 3 203:34 4.74% [intr{irq275:
> em1:rx 0}]
> 0 root -92 0
0K 336K -
2 427:03 2.64%
> [kernel{dummynet}]
> 0 root -92 0
0K 336K -
3 206:57 2.54% [kernel{em0
> que}]
> 86278 root 20 0
33348K 8588K select
0 8:35 0.54%
> /usr/local/sbin/snmpd -p /var/run/net_snmpd.pid -r
> 12 root -92
- 0K 448K
WAIT 2 7:56 0.20%
[intr{irq276:
> em1:tx 0}]
>
> # cat /etc/sysctl.conf
> dev.igb.0.rx_processing_limit=4096
> dev.igb.1.rx_processing_limit=4096
> dev.em.0.rx_int_delay=200
> dev.em.0.tx_int_delay=200
> dev.em.0.rx_abs_int_delay=4000
> dev.em.0.tx_abs_int_delay=4000
> dev.em.0.rx_processing_limit=4096
> dev.em.1.rx_int_delay=200
> dev.em.1.tx_int_delay=200
> dev.em.1.rx_abs_int_delay=4000
> dev.em.1.tx_abs_int_delay=4000
> dev.em.1.rx_processing_limit=4096
> net.inet.ip.forwarding=1
> net.inet.ip.fastforwarding=1
> net.inet.tcp.blackhole=2
> net.inet.udp.blackhole=0
> net.inet.ip.redirect=0
> net.inet.tcp.delayed_ack=0
> net.inet.tcp.recvbuf_max=4194304
> net.inet.tcp.sendbuf_max=4194304
> net.inet.tcp.sack.enable=0
> net.inet.tcp.drop_synfin=1
> net.inet.tcp.nolocaltimewait=1
> net.inet.ip.ttl=255
> net.inet.ip.sourceroute=0
> net.inet.ip.accept_sourceroute=0
> net.inet.udp.recvspace=64080
> net.inet.ip.rtmaxcache=1024
> net.inet.ip.intr_queue_maxlen=5120
> kern.ipc.nmbclusters=824288
> kern.ipc.maxsockbuf=83886080
> kern.ipc.maxsockets=102400
> net.inet.tcp.recvspace=95536
> net.inet.tcp.sendspace=95536
> net.local.stream.recvspace=32768
> net.local.stream.sendspace=32768
> kern.ipc.somaxconn=32768
> net.inet.tcp.maxtcptw=65535
> net.inet.ip.fw.one_pass=1
> net.inet.ip.fw.dyn_max=65535
> net.inet.ip.fw.dyn_buckets=2048
> net.inet.ip.fw.dyn_syn_lifetime=10
> net.inet.ip.fw.dyn_ack_lifetime=120
> net.inet.ip.fw.verbose=0
> net.inet.ip.dummynet.io_fast=1
> net.inet.ip.dummynet.hash_size=65536
> net.inet.ip.dummynet.pipe_slot_limit=1000
> net.inet.icmp.icmplim=3000
> net.inet.icmp.drop_redirect=1
> net.inet.icmp.log_redirect=0
> net.inet.icmp.bmcastecho=0
> net.inet.icmp.maskrepl=0
> kern.random.sys.harvest.ethernet=0
> kern.random.sys.harvest.point_to_point=0
> kern.random.sys.harvest.interrupt=0
> net.inet.raw.maxdgram=16384
> net.inet.raw.recvspace=16384
> net.route.netisr_maxqlen=8192
> net.inet.ip.intr_queue_maxlen=10240
> net.isr.dispatch=deferred
>
> # cat /boot/loader.conf
> loader_logo="beastie"
> autoboot_delay=3
> geom_mirror_load="YES"
> hw.igb.rxd=4096
> hw.igb.txd=4096
> hw.igb.rx_process_limit=4096
> hw.igb.max_interrupt_rate=32000
> hw.igb.num_queues=4
> hw.igb.fc_setting=0
> hw.igb.lro=0
> hw.em.rxd=4096
> hw.em.txd=4096
> hw.em.rx_process_limit=4096
> hw.em.fc_setting=0
> dev.em.0.rx_int_delay=200
> dev.em.0.tx_int_delay=200
> dev.em.0.rx_abs_int_delay=4000
> dev.em.0.tx_abs_int_delay=4000
> dev.em.1.rx_int_delay=200
> dev.em.1.tx_int_delay=200
> dev.em.1.rx_abs_int_delay=4000
> dev.em.1.tx_abs_int_delay=4000
> net.isr.maxthreads=4
> net.isr.bindthreads=0
> net.inet.tcp.tcbhashsize=32000
> net.link.ifqmaxlen=10240
> net.isr.defaultqlimit=8192
>
> # vmstat -i
> interrupt
total
rate
> irq20: ehci1
4171628
2
> irq21: atapci0
1561194
0
> irq22: ehci0+
2713150
1
> cpu0:timer
14622957598
8082
> irq264: igb0:que 0
515616328 284
> irq265: igb0:que 1
738456087 408
> irq266: igb0:que 2
711371660 393
> irq267: igb0:que 3
462738813 255
> irq268: igb0:link
3
0
> irq269: igb1:que 0
656044816 362
> irq270: igb1:que 1
546931002 302
> irq271: igb1:que 2
617173223 341
> irq272: igb1:que 3
644295672 356
> irq273: igb1:link
4
0
> irq274: em0
557400132
308
> irq275: em1:rx 0
424252744
234
> irq276: em1:tx 0
708469817
391
> irq277: em1:link
2
0
> cpu3:timer
678408141
374
> cpu1:timer
674674076
372
> cpu2:timer
621495291
343
> Total
23188731381
12816
>
> # netstat -w1
> input (Total)
output
> packets errs idrops
bytes packets errs
bytes colls
> 442k 0
0
304M
457k 0
393M 0
> 449k 0
0
308M
463k 0
395M 0
> 445k 0
0
304M
461k 0
393M 0
> 439k 0
0
303M
456k 0
393M 0
> 434k 0
0
297M
450k 0
387M 0
> 440k 0
0
301M
456k 0
392M 0
> 438k 0
0
300M
455k 0
391M 0
>
> # ifconfig lagg0 (internal, 500
VLAN's)
> lagg0:
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
metric 0 mtu
> 1500
>
options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
> ether a0:36:9f:16:d0:9c
> media: Ethernet autoselect
> status: active
> laggproto lacp lagghash l2,l3,l4
> laggport: igb1
flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
> laggport: igb0
flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
>
> # ifconfig lagg1 - (external, NAT)
> lagg1:
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
metric 0 mtu
> 1500
>
options=4209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,VLAN_HWTSO>
> ether 00:1e:67:59:ea:89
> inet ХХХ.ХХХ.ХХХ.14 netmask 0xffffffe0
broadcast
> ХХХ.ХХХ.ХХХ.31
> inet ХХХ.ХХХ.ХХХ.70 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.70
> inet ХХХ.ХХХ.ХХХ.71 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.71
> inet ХХХ.ХХХ.ХХХ.72 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.72
> inet ХХХ.ХХХ.ХХХ.73 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.73
> inet ХХХ.ХХХ.ХХХ.74 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.74
> inet ХХХ.ХХХ.ХХХ.75 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.75
> inet ХХХ.ХХХ.ХХХ.76 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.76
> inet ХХХ.ХХХ.ХХХ.77 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.77
> inet ХХХ.ХХХ.ХХХ.78 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.78
> inet ХХХ.ХХХ.ХХХ.79 netmask 0xffffffff
broadcast
> ХХХ.ХХХ.ХХХ.79
> inet ХХХ.ХХХ.ХХХ.33 netmask 0xfffffff0
broadcast
> ХХХ.ХХХ.ХХХ.47
> media: Ethernet autoselect
> status: active
> laggproto lacp lagghash l2,l3,l4
> laggport: em1
flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
> laggport: em0
flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
>
> # netstat -w1 -I em0
> input (em0)
output
> packets errs idrops
bytes packets errs
bytes colls
> 101k 0
0
111M 36k
0 13M
0
> 101k 0
0
112M 36k
0 13M
0
> 100k 0
0
112M 37k
0 13M
0
>
> # netstat -w1 -I em1
> [code]
input (em1)
output
> packets errs idrops
bytes packets errs
bytes colls
> 100k 0
0
111M 37k
0
9.1M 0
> 102k 0
0
113M 39k
0 10M
0
> 91k 0
0
101M 38k
0
9.7M 0
>
> # netstat -w1 -I igb0
> input
(igb0)
output
> packets errs idrops
bytes packets errs
bytes colls
> 39k 0
0
9.1M 51k
0 57M
0
> 38k 0
0
9.1M 49k
0 54M
0
> 39k 0
0
9.4M 51k
0 56M
0
>
> # netstat -w1 -I igb1
> input
(igb1)
output
> packets errs idrops
bytes packets errs
bytes colls
> 36k 0
0 14M
48k 0
56M 0
> 35k 0
0 14M
50k 0
59M 0
> 34k 0
0 13M
48k 0
57M 0
>
> # netstat -w1 -I lagg0
> input (lagg0)
output
> packets errs idrops
bytes packets errs
bytes colls
> 75k 0
0 23M
98k 0
113M 0
> 73k 0
0 21M
98k 0
113M 0
> 73k 0
0 23M
98k 0
112M 0
>
> # netstat -w1 -I lagg1
> input (lagg1)
output
> packets errs idrops
bytes packets errs
bytes colls
> 100k 0
0
112M 74k
0 24M
0
> 101k 0
0
113M 73k
0 24M
0
> 102k 0
0
114M 74k
0 24M
0
>
>>
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