View Network Traffic
# Network Throughput
$ systat -ifs
/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10
Load Average ||
Interface Traffic Peak Total
lo0 in 0.391 KB/s 0.391 KB/s 341.838 KB
out 0.391 KB/s 0.391 KB/s 341.838 KB
aq0 in 117.038 MB/s 117.038 MB/s 10.210 GB
out 2.935 MB/s 2.935 MB/s 261.974 MB
View Network Usage
# View network connection
$ systat -netstat
/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10
Load Average ||
Local Address Foreign Address Proto Recv-Q Send-Q (state)
localhost.1031 *.* udp4 0 0
192.168.18.69.ntp *.* udp4 0 0
localhost.ntp *.* udp6 0 0
fe80:2::1.ntp *.* udp6 0 0
localhost.ntp *.* udp4 0 0
239.255.255.250.3702 *.* udp4 0 0
192.168.18.69.5357 *.* tcp4 0 0 LISTEN
192.168.18.69.http 192.168.18.60.54509 tcp4 0 0 ESTABLISHED
localhost.23485 localhost.x11 tcp4 0 0 ESTABLISHED
localhost.x11 localhost.23485 tcp4 0 0 ESTABLISHED
192.168.18.69.ssh 192.168.18.60.56126 tcp4 0 184 ESTABLISHED
192.168.18.69.5201 192.168.18.60.56131 tcp4 0 0 ESTABLISHED
192.168.18.69.5201 192.168.18.60.56132 tcp4 0 0 ESTABLISHED
# View TCP
$ systat -tcp
/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10
Load Average ||
TCP Connections TCP Packets
0 connections initiated 44623 total packets sent
0 connections accepted 3 - data
0 connections established 0 - data (retransmit by dupack)
0 connections dropped 0 - data (retransmit by sack)
0 - in embryonic state 44620 - ack-only
0 - on retransmit timeout 0 - window probes
0 - by keepalive 0 - window updates
0 - from listen queue 0 - urgent data only
0 - control
0 - resends by PMTU discovery
TCP Timers 89243 total packets received
3 potential rtt updates 89240 - in sequence
3 - successful 0 - completely duplicate
1 delayed acks sent 0 - with some duplicate data
0 retransmit timeouts 0 - out-of-order
0 persist timeouts 0 - duplicate acks
0 keepalive probes 3 - acks
0 - timeouts 0 - window probes
0 - window updates
0 - bad checksum
View Disk Usage
$ df -h
Filesystem Size Used Avail Capacity Mounted on
boot-pool/ROOT/default 100G 1.2G 99G 1% /
View Disk Statistics
$ systat -iostat
/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10
Load Average ||
/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100
cpu user|
nice|
system|XX
interrupt|
idle|XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100
nvd0 MB/sXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
tps|XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX789.36
ada0 MB/s
tps|
ada1 MB/s
tps|
ada2 MB/s
tps|
ada3 MB/s
tps|
pass0 MB/s
tps|
pass1 MB/s
tps|
pass2 MB/s
tps|
pass3 MB/s
tps|
pass4 MB/s
# 每秒更新一次（-K 1），输出 100000 次（-c 100000），只显示 disk 信息（-d）
$ iostat -c 100000 -d -K 1
View Memory Usage
$ pkg install freecolor
$ freecolor -t -m -o -s 1
total used free shared buffers cached
Mem: 23764 21219 2545 0 0 0
Swap: 4096 0 4096
Total: 27860 = ( 21219 (used) + 6641 (free))
$ freecolor -m -s 1
Physical : [###................................] 10% (2546/23764)
Swap : [###################################] 100% (4096/4096)
Reference