Use Dstat to monitor your server – Ubuntu
Posted by | Posted in Command-Line, Linux, Ubuntu | Posted on 21-07-2009
Dstat is one of the best tools you can use for monitoring your server during peak times. It is a combination of vmstat, iostat, netstat, nfsstat and ifstat. This program allows you to access and view key elements of your system’s resources instantly.
dstat – versatile tool for generating system resource statistics
dstat [-afv] [options..] [delay [count]]
Using dstat to relate disk-throughput with network-usage (eth0), total CPU-usage and
system counters:
dstat -dnyc -N eth0 -C total -f 5
Checking dstat’s behaviour and the system’s impact on dstat:
dstat -taf --debug
Using the time plugin together with cpu, net, disk, system, load, proc and
topcpu plugins:
dstat -tcndylp -M topcpu
this is identical to
dstat -M time,cpu,net,disk,sys,load,proc,topcpu
Using dstat to relate cpu stats with interrupts per device:
dstat -tcyifInstalling Dstat
sudo apt-get install dstat Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: dstat 0 upgraded, 1 newly installed, 0 to remove and 3 not upgraded. Need to get 58.0kB of archives. After this operation, 406kB of additional disk space will be used. Get:1 http://us.archive.ubuntu.com jaunty/universe dstat 0.6.8-1 [58.0kB] Fetched 58.0kB in 1s (50.0kB/s) Selecting previously deselected package dstat. (Reading database ... 24720 files and directories currently installed.) Unpacking dstat (from .../archives/dstat_0.6.8-1_all.deb) ... Processing triggers for man-db ... Setting up dstat (0.6.8-1) ...
Dstat updates every second to display its information. Use “control C” to quit the application.
$ dstat ----total-cpu-usage---- -dsk/total- -net/total- ---paging-- ---system-- usr sys idl wai hiq siq| read writ| recv send| in out | int csw 0 0 100 0 0 0| 13k 29k| 0 0 | 0 0 | 7 12 0 1 99 0 0 0| 32k 0 | 418B 404B| 0 0 | 11 14 0 0 100 0 0 0| 0 0 |1360B 420B| 0 0 | 17 14 0 0 99 1 0 0| 0 856k| 132B 420B| 0 0 | 22 22 0 0 100 0 0 0| 0 0 | 132B 420B| 0 0 | 10 14 0 0 100 0 0 0| 0 0 | 192B 420B| 0 0 | 12 16 ^C
A screen shot of the unmodified output of dstat:
Family Commands for dstat:
Performance tools
ifstat(1), iftop(8), iostat(1), mpstat(1), netstat(1), nfsstat(1), nstat, vmstat(1), xosview(1)
Debugging tools
htop(1), lslk(1), lsof(8), top(1)
Process tracing
ltrace(1), pmap(1), ps(1), pstack(1), strace(1)
Binary debugging
ldd(1), file(1), nm(1), objdump(1), readelf(1)
Memory usage tools
free(1), memusage, memusagestat, slabtop(1)
Accounting tools
dump-acct, dump-utmp, sa(8)
Hardware debugging tools
dmidecode, ifinfo(1), lsdev(1), lshal(1), lshw(1), lsmod(8), lspci(8), lsusb(8), smartctl(8), x86info(1)
Application debugging
mailstats(8), qshape(1)
Xorg related tools
xdpyinfo(1), xrestop(1)
Other useful info
proc(5)