运行 stap -v systemtap.stp 命令,若运行正常则表示systemtap安装成功
[root@localhost systemtap_study]# stap -v monitorJava.stap
Pass 1: parsed user script and 52 library script(s) in 280usr/0sys/293real ms.
Pass 2: analyzed script: 6 probe(s), 4 function(s), 1 embed(s), 4 global(s) in 310usr/350sys/654real ms.
Pass 3: using cached /root/.systemtap/cache/a3/stap_a3128d43c0908f80778e75f469858507_2665.c
Pass 4: using cached /root/.systemtap/cache/a3/stap_a3128d43c0908f80778e75f469858507_2665.ko
Pass 5: starting run.
java process monitoring started ...
4151 kf_sys_read = 14
4151 read = 14
4151 kf_sys_write = 5
4151 write = 5
4049 kf_sys_read = 43
4049 read = 43
4049 kf_sys_write = 13
4049 write = 13
5873 kf_sys_read = 864
5873 read = 864
5873 kf_sys_write = 2
5873 write = 2
5861 kf_sys_read = 2561
5861 read = 2561
5861 kf_sys_write = 29
5861 write = 29
5921 kf_sys_read = 864
5921 read = 864
5921 kf_sys_write = 2
5921 write = 2
5909 kf_sys_read = 2561
5909 read = 2561
5909 kf_sys_write = 29
5909 write = 29
java process monitoring finished
Pass 5: run completed in 0usr/10sys/14408real ms.
[root@localhost systemtap_study]#
三、Cent OS 5.4 Final特殊性说明以及在一般linux系统中systemtap安装步骤
Cent OS 5.4 final在安装操作系统时只要选择了相关软件包即会默认安装上elfutils和systemtap，
并且不需要重新编译内核,因为其内核默认支持相关的选项，这些选项再下面说明。
假若系统没有安装上面叙述的(1)~(5)的一些rpm包以及elfutils和systemtap,
则需要首先下载这些rpm包完成(1)~(5)的安装，再重新编译内核，用新内核启动后再安装elfutils和systemtap
编译内核时必须保证内核支持以下选项:
make menuconfig；配置内核编译选项，按如下方式选择
General setup --->
[*] Kernel->user space relay support (formerly relayfs)
Kernel hacking --->
[*] Kernel debugging
[*] Compile the kernel with debug info
[*] Debug Filesystem
Instrumentation Support --->
[*] Kprobes (EXPERIMENTAL)
Security Options --->
[*] Default Linux Capabilities
退出时，vi .config 查看内核编译配置文件，
确保CONFIG_DEBUG_INFO, CONFIG_KPROBES, CONFIG_RELAY，CONFIG_DEBUG_FS这四项选中,使用如下命令
[root@localhost linux-2.6.25]# grep CONFIG_DEBUG_INFO .config
CONFIG_DEBUG_INFO=y
[root@localhost linux-2.6.25]# grep CONFIG_KPROBES .config
CONFIG_KPROBES=y
[root@localhost linux-2.6.25]# grep CONFIG_RELAY .config
CONFIG_RELAY=y
[root@localhost linux-2.6.25]# grep CONFIG_DEBUG_FS .config
CONFIG_DEBUG_FS=y
编译内核
make clean
make vmlinux modules
make modules_install
make bzImage
make install
用新内核重新启动系统后，安装elfutils*和Systemtap*包