From mboxrd@z Thu Jan 1 00:00:00 1970 From: xiongyuhua@zju.edu.cn (=?UTF-8?B?54aK5q+T5Y2O?=) Date: Tue, 1 Sep 2020 17:13:25 +0800 (GMT+08:00) Subject: [lttng-dev] How to use the lttng-untrack command Message-ID: <6e9da9cb.16e65.17448f14499.Coremail.xiongyuhua@zju.edu.cn> Hi?dear Hello, I have encountered some problems in using LTTNG, which is briefly described as follows. I am eager to get your help. About the use of the untrack command.It is reproduced as follows: I type the following commands in turn to start LTTNG, and set up not to monitor a particular process.(For example, I input the "top" command in the terminal, the PID of the "top" process is 72598, now I want LTTNG not to monitor the "top" process) lttng create my-kernel-session --output=/tmp/my-kernel-trace lttng add-context -k -t pid lttng add-context -k -t tid lttng enable-event --kernel --all lttng untrack --kernel --pid=72598 lttng start lttng destroy babeltrace2 /tmp/my-kernel-trace > babeltrace.txt Unfortunately, the output still contains the data for PID72598. Even after I changed "lttng untrack --kernel -- PID =72598" to "LTTNG untrack-u -- PID =72598", this phenomenon still occurred. How do I use the lttng-untrack command to achieve my goal? Looking forward to your reply. thanks, yuhua ------------------ Yuhua Xiong Lab for Internet and Security Technology School of Computer Science and Technology Zhejiang University Hangzhou, 310007, P.R. China -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 1598951079297.png Type: image/png Size: 228995 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 1598951286057.png Type: image/png Size: 382880 bytes Desc: not available URL: