[Users] Deleting email in a large MH folder

[Ivan Krylov]

On Tue, 10 May 2022 20:26:06 +0200
Paul Rolland <rol at witbe.net> wrote:

> Any idea of what I can do with that ? ;)

Not yet (my own experience with profilers is also limited), but it
should be possible to feed the recording into a FlameGraph generator:
https://www.brendangregg.com/FlameGraphs/cpuflamegraphs.html#Instructions

This should leave you with a huge SVG file full of JavaScript that
would give you the whole stack trace during the 100% CPU events, which
may give Paul the developer some ideas.

With `perf record --call-graph dwarf` you also get 8K of stack data per
sample, but I don't remember how to make use of that. (Can you load it
into GDB to look at the local variables or something?)

Nice so see you've already found a workaround given just a function
name. Unfortunately I don't know the code base well enough to suggest a
fix...

-- 
Best regards,
Ivan