SystemTap is tracing and probing tool that allows users to strudy and monitor of the computer system(particularly, the kernel) in fine detail.
– It provides information similar to the output of tools like netstat, ps, top, and iostat
– However, SystemTap is designed to provide more filtering and analysis options for collected information.

 

requied packages :

systemtap-devel-2.5-5.el6.x86_64
systemtap-client-2.5-5.el6.x86_64

 

# Exaple profile 에 대해 웹 구성

[root@RHEL66-Docker ~]# yum install  -y httpd

[root@RHEL66-Docker ~]# vi /etc/httpd/conf/httpd.conf

DocumentRoot /www/docs/dummy-host.example.com

[root@RHEL66-Docker ~]# /etc/init.d/httpd start

 

# 샘플 프로필

[root@RHEL66-Docker ~]# ll /usr/share/doc/systemtap-client-2.5/examples/
total 412
drwxr-xr-x 3 root root 4096 Jun 27 08:20 general
drwxr-xr-x 2 root root 4096 Jun 27 08:20 html
-rw-r–r– 1 root root 79298 Jun 24 2014 index.html
-rw-r–r– 1 root root 47261 Jun 24 2014 index.txt
drwxr-xr-x 2 root root 4096 Jun 27 08:20 interrupt
drwxr-xr-x 2 root root 4096 Jun 27 08:20 io
-rw-r–r– 1 root root 140946 Jun 24 2014 keyword-index.html
-rw-r–r– 1 root root 91092 Jun 24 2014 keyword-index.txt
drwxr-xr-x 2 root root 4096 Jun 27 08:20 locks
drwxr-xr-x 2 root root 4096 Jun 27 08:20 memory
drwxr-xr-x 2 root root 4096 Jun 27 08:20 network
drwxr-xr-x 2 root root 4096 Jun 27 08:20 process
drwxr-xr-x 2 root root 4096 Jun 27 08:20 profiling
-rw-r–r– 1 root root 5886 Jun 24 2014 README
drwxr-xr-x 3 root root 4096 Jun 27 08:20 stapgames
drwxr-xr-x 2 root root 4096 Jun 27 08:20 virtualization

 

# 샘플 프로필로 iotime을 확인

 

systemtap

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