Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [PATCH v7 0/2] perf: add support for logging debug messages to file | Date | Tue, 26 Nov 2019 12:19:11 -0800 |
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Changbin Du <changbin.du@gmail.com> writes:
> When in TUI mode, it is impossible to show all the debug messages to > console. This make it hard to debug perf issues using debug messages. > This patch adds support for logging debug messages to file to resolve > this problem.
This was already solved in
commit f78eaef0e0493f6068777a246b9c4d9d5cf2b7aa Author: Andi Kleen <ak@linux.intel.com> Date: Fri Nov 21 13:38:00 2014 -0800
perf tools: Allow to force redirect pr_debug to stderr.
When debugging the tui browser I find it useful to redirect the debug log into a file. Currently it's always forced to the message line.
Add an option to force it to stderr. Then it can be easily redirected.
You can do
perf report --debug stderr 2> file ...
-Andi
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