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Re: Diagnosing what applications are doing


On Sun, May 26, 2019 at 11:28:43AM +0100, Paul Sutton wrote:
> Is there a program that I can run to try and figure out what it is doing
> ?  I am sure there is but not sure what I would be looking for even with
> searching.

perf trace -p <thunderbird pid here>

ltrace -p <thunderbird pid here>

strace -p <thunderbird pid here>

There are more sophisticated tools for the task, but these three are
usually enough for me.