Profiling in ALE

Hello,

I am using clang-tidy for CPP linting. But I noticed that inside the vim, ALE takes almost 10x more time compared to running clang-tidy outside vim.

I tried vim profile option (attached the log). I couldn't extract any meaningful info from it (First time with vim profiling).
[profile.log](https://github.com/dense-analysis/ale/files/8239982/profile.log)

But I wanted to check if there is any better profile option in ALE to get more info of how much time it takes to lint and process the result.