How to debug slow startup times?

[Ilmari Lauhakangas]

On 11.12.2020 19.36, Paul Menzel wrote:
> My parents, the most important users, noted slow startup times of 
> LibreOffice. It turns out, that lots of installed fonts slow it down 
> considerably [1].
> 
> Unrelated from this concrete issue, do you have tools to debug the 
> startup time? I tried `strace -ff -ttt -o …`, but it turned out to be 
> quite convoluted, but also pointed to some six seconds gap. Do you have 
> tools or scripts to start LibreOffice with the right switches or 
> programs, and print out the greatest offenders?

https://wiki.documentfoundation.org/Development/How_to_debug#Performance_debugging_.28perf.29

Note that you need symbols, either from your distro packages or in your 
own build.

Ilmari