Date: Sun, 25 Jun 2006 01:57:01 -0700 From: "Nikolas Britton" <nikolas.britton@gmail.com> To: freebsd-stable@freebsd.org Subject: Gigabit ethernet very slow. Message-ID: <ef10de9a0606250157jce24553h52e67db7a9f76b03@mail.gmail.com>
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What's up with my computer, it's only getting 30MB/s?
hostB: nc -4kl port > /dev/null
hostA: nc host port < /dev/zero
hostB: Athlon64 3000, Asus A8R-MVP, FreeBSD 6.1/amd64):
$ sysctl -a net.inet.tcp|grep space
net.inet.tcp.sendspace: 32768
net.inet.tcp.recvspace: 131072
sk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 6500
options=8<VLAN_MTU>
inet6 fe80::215:f2ff:fed9:ae2a%sk0 prefixlen 64 scopeid 0x2
inet 192.168.1.242 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:15:f2:d9:ae:2a
media: Ethernet 1000baseTX <full-duplex> (1000baseTX
<full-duplex,flag0,flag1>)
status: active
top:
last pid: 730; load averages: 0.53, 0.41, 0.41
26 processes: 1 running, 25 sleeping
CPU states: 2.6% user, 0.0% nice, 12.4% system, 25.9% interrupt, 59.0% idle
Mem: 11M Active, 7832K Inact, 23M Wired, 10M Buf, 189M Free
Swap: 483M Total, 483M Free
PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
557 root 1 98 0 3964K 956K select 7:48 9.57% nc
$ vmstat -n 0 5
procs memory page faults cpu
r b w avm fre flt re pi po fr sr in sy cs us sy id
1 0 0 31368 194048 15 0 0 0 13 0 12705 110013 21101 1 38 61
1 0 0 31368 194048 0 0 0 0 0 0 9638 84515 14842 1 28 71
0 0 0 31368 194048 0 0 0 0 0 0 10228 89549 15756 1 31 68
0 0 0 31368 194048 0 0 0 0 0 0 13055 114963 20048 1 38 60
0 0 0 31368 194048 0 0 0 0 0 0 9325 81653 14384 0 28 72
---------------------------------------
hostA: P4 3GHz Prescott, Intel SE7210TP1E, FreeBSD 6.1/i386):
$ sysctl -a net.inet.tcp|grep space
net.inet.tcp.sendspace: 65536
net.inet.tcp.recvspace: 65536
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 6500
options=b<RXCSUM,TXCSUM,VLAN_MTU>
inet6 fe80::204:23ff:feba:3870%em0 prefixlen 64 scopeid 0x1
inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:04:23:ba:38:70
media: Ethernet 1000baseTX <full-duplex>
status: active
top:
last pid: 1190; load averages: 0.10, 0.21, 0.28
50 processes: 1 running, 49 sleeping
CPU states: 0.7% user, 0.0% nice, 11.6% system, 9.0% interrupt, 78.7% idle
Mem: 72M Active, 222M Inact, 147M Wired, 12K Cache, 111M Buf, 552M Free
Swap: 6144M Total, 6144M Free
PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
997 root 1 4 0 1528K 720K sbwait 1:37 15.82% nc
$ vmstat -n 0 5
procs memory page faults cpu
r b w avm fre flt re pi po fr sr in sy cs us sy id
2 0 0 169608 563404 36 0 0 0 28 0 9149 109489 14087 3 34 64
0 0 0 169608 563404 9 0 0 0 9 0 8224 92285 11696 2 24 74
1 0 0 169608 563404 13 0 0 0 13 0 8818 99341 12541 2 28 70
0 0 0 169608 563404 9 0 0 0 9 0 8645 97585 12303 2 28 70
0 0 0 169608 563404 13 0 0 0 13 0 7610 85517 10830 1 26 73
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