linux常用工具诊断工具使用示例1
我使用的ubutun，安装用apt-get非常方便。
weijianzhongwj@ubuntu:~$ dstat
You did not select any stats, using -cdngy by default.
----total-cpu-usage---- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai hiq siq| read writ| recv send| in out | int csw
16 5 77 2 0 1| 181k 147k| 0 0 |1439B 6319B|1234 6234
1 1 95 3 0 0| 0 92k| 0 0 | 0 0 | 814 999
2 1 97 0 0 1| 0 0 | 0 0 | 0 0 | 821 966
1 1 98 0 0 0| 0 0 | 0 86B| 0 0 | 802 798
1 0 98 0 0 0| 0 0 | 0 0 | 0 0 | 781 742
2 1 98 0 0 0| 0 0 | 0 0 | 0 0 | 801 834
1 1 95 3 0 1| 0 104k|5591B 3433B| 0 0 | 876 1239
1 1 98 0 0 0| 0 0 | 658B 2023B| 0 0 | 829 911 ^C
weijianzhongwj@ubuntu:~$ vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 61876 125672 427420 491748 0 2 68 69 308 571 16 5 77 2
0 0 61876 125672 427464 491704 0 0 0 176 358 1042 1 1 95 3
0 0 61876 125528 427464 491748 0 0 0 0 347 750 2 1 97 0
0 0 61876 125480 427464 491748 0 0 0 0 679 737 2 1 98 0
0 0 61876 125376 427464 491748 0 0 0 12 771 706 1 1 99 0
^C
weijianzhongwj@ubuntu:~$ iostat
Linux 3.5.0-17-generic (ubuntu) 2012年11月05日 _i686_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
15.52 0.01 5.45 1.89 0.00 77.13
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 12.38 181.16 147.01 1974352 1602164
weijianzhongwj@ubuntu:~$ ifstat
eth0 wlan0
KB/s in KB/s out KB/s in KB/s out
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.09
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
0.00 0.00 0.00 0.00
^C
dstat系统资源检测工具，可以统计的数据包括
OPTIONS
-c, --cpu
enable cpu stats (system, user, idle, wait, hardware interrupt, software interrupt)
-C 0,3,total
include cpu0, cpu3 and total (when using -c/--cpu)
-d, --disk
enable disk stats (read, write)
-D total,hda
include total and hda (when using -d/--disk)
-g, --page
enable page stats (page in, page out)
-i, --int
enable interrupt stats
-I 5,10
include interrupt 5 and 10 (when using -i/--int)
-l, --load
enable load average stats (1 min, 5 mins, 15mins)
-m, --mem
enable memory stats (used, buffers, cache, free)
-n, --net
enable network stats (receive, send)
-N eth1,total
include eth1 and total (when using -n/--net)
-p, --proc
enable process stats (runnable, uninterruptible, new)
-r, --io
enable I/O request stats (read, write requests)
-s, --swap
enable swap stats (used, free)
-S swap1,total
include swap1 and total (when using -s/--swap)
-t, --time
enable time/date output
-T, --epoch
enable time counter (seconds since epoch)
-y, --sys
enable system stats (interrupts, context switches)
--aio enable aio stats (asynchronous I/O)
--fs enable filesystem stats (open files, inodes)
--ipc enable ipc stats (message queue, semaphores, shared memory)
--lock enable file lock stats (posix, flock, read, write)
--raw enable raw stats (raw sockets)
--socket
enable socket stats (total, tcp, udp, raw, ip-fragments)
--tcp enable tcp stats (listen, established, syn, time_wait, close)
--udp enable udp stats (listen, active)
--unix enable unix stats (datagram, stream, listen, active)
--vm enable vm stats (hard pagefaults, soft pagefaults, allocated, free)
--plugin-name
enable (external) plugins by plugin name, see PLUGINS for options
Possible internal stats are
aio, cpu, cpu24, disk, disk24, disk24old, epoch, fs, int, int24, io, ipc, load, lock, mem, net, page, page24, proc, raw,
socket, swap, swapold, sys, tcp, time, udp, unix, vm
--list list the internal and external plugin names
-a, --all
equals -cdngy (default)
-f, --full
expand -C, -D, -I, -N and -S discovery lists
-v, --vmstat
equals -pmgdsc -D total
--float
force float values on screen (mutual exclusive with --integer)
--integer
force integer values on screen (mutual exclusive with --float)
--bw, --blackonwhite
change colors for white background terminal
--nocolor
disable colors (implies --noupdate)
--noheaders
disable repetitive headers
--noupdate
disable intermediate updates when delay > 1
--output file
write CSV output to file
--profile
show profiling statistics when exiting dstat
比如：
weijianzhongwj@ubuntu:~$ dstat --fs --filesystem- files inodes 8800 21186 8640 20966 8640 20966 8640 20968 ^C weijianzhongwj@ubuntu:~$ dstat -T --epoch--- epoch 1352126322 1352126323 1352126324 1352126325^C weijianzhongwj@ubuntu:~$ dstat --ipc --sysv-ipc- msg sem shm 0 1 31 0 1 31 0 1 31 0 1 30^C weijianzhongwj@ubuntu:~$ dstat --socket ------sockets------ tot tcp udp raw frg 676 10 5 0 0 676 10 5 0 0 673 7 5 0 0 673 7 5 0 0 673 7 5 0 0 673 7 5 0 0 673 7 5 0 0^C
ifstat是统计所有网卡的输入输出流量的。
vmstat主要统计的就是内存的使用情况了。
iostat统计的就是硬盘的读写情况。