Interestingly, today my team is releasing an open source tool called
sysdig, which is designed to solve exactly this problem (among several
others).
http://www.sysdig.org/
https://github.com/draios/sysdig
Sysdig's approach is based on capturing the activity of every process in
the system and then applying wireshark-like filters to reduce that
information. It's like a mix between strace , tcpdump and lsof. It also
has a couple of cool features, like the ability to save information into
trace files and a library of Lua scripts.
I'd love to hear what you guys think. And if you like sysdig we could
really use your help spread the word!
On 3/30/2014 11:44 PM, Philippe Ombredanne wrote:
On Fri, Mar 28, 2014 at 3:18 PM, Volcan Renewed <volcan9...@gmail.com> wrote:
My name is Parashara
I would like to know is there any way that we can find the strace of all the
process running in the system
Using the strace -p option as shown below we can display the strace for a
given process id
Example
sudo strace -p 1542
Using the ps command we can display the all the process running in the
system
ps -ef
How to find the strace of all the processes running in the system?
Can you just guide me in right direction?
Hi Parashara!
I am not sure why you would want to do that, yet you could effectively
as you suggested collect all PIDs and then trace them all, possibly
with -ff to trace their children and log it all to files.
Since you can attach to up to 32 process per strace launch (using -p
multiple times) and a typical running Linux distro has about ~100 to
200 processes running, so that sounds possible to achieve with about
eight "tracers" each running strace with multiple -p.
Make sure do you do no trace strace itself though... and you might
want to exclude also your user process that spawns the strace runs.
Your system might slow down quite a bit if everything is traced ...
but if you think that tracing them all is what you need, your approach
might work.
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