Systemtap is tool to probe or trace a running linux system, supporting visibility into both kernel- (its initial focus) and user-space. It uses dynamically loaded probes to gather performance and tracing data about the whole system or just selected processes.
Questions tagged [systemtap]
142 questions
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The third exercise of section 2.3 "Exercises" for the official systemtap tutorial
Problem Description:
Listing: socket_trace.stp
probe kernel.function("*@net/socket.c").call{
printf("%s -> %s\n", thread_indent(1), ppfunc())
}
probe kernel.function("*@net/socket.c").return {
printf("%s <- %s\n", thread_indent(-1),…
storypku
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SystemTap on Android
when I executed the command ' staprun ' on the android , I met following problem :
# /data/systemtap-1.0-omap/bin/staprun /data/local/msyscall_all.ko
/data/systemtap-1.0-omap/bin/staprun: 1: Syntax error: "(" unexpected
#
the module…
wangxigui
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why i dont have right to execute systemtap?
I wanna to run systemtap in my linux mint. I created three groups "stapsys,stapusr,stapdev",and added myself id in it . but when i run a simple test, the result is:
stap -v -e 'probe vfs.read {printf("read performed\n"); exit()}'
Pass 1: parsed user…
uuball
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How to show the totall amount of process ,main memory, virtual memory usage in SYSTEMTAP?
I wanna write a script that monitors one (selected) item component for the following operating systems:
Process Management
Management of main memory
Virtual memory management
Management of input / output
Network Management
and I came up with…
Googz En
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systemtap profiling gc node.js
I installed node.js(0.9.4) via nvm, which according to changelog has systemtap support.
I installed systemtap on my Fedora linux distro.
$ sudo yum install systemtap
I used this gist from Ben Noordhuis.
$ stap -l 'process("node")'
produces…
Alfred
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systemtap tcp connections script error
i am trying to run this script , and it shows no tcp connections any ideas? OS: centos 6.3
#! /usr/bin/env stap
probe begin {
printf("%6s %16s %6s %6s %16s\n",
"UID", "CMD", "PID", "PORT", "IP_SOURCE")
}
probe…
krisdigitx
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For a SystemTap script, how do I make sure I catch the fact a process is ending?
Writing a SystemTap script (for Linux), and I want to make sure I catch the fact that a process has ended. What's the best way to do this (e.g., a particular kernel function, or an exhaustive list of ways a process could end like calling…
rivenmyst137
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