[Bug 254639] Fork syscall performance

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Mar 30 22:21:46 UTC 2021


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254639

--- Comment #3 from Mark Johnston <markj at FreeBSD.org> ---
If I am reading the output correctly, we are spending hundreds of ms copying
page tables, but this is not where the majority of time is spent.

It would also be useful to see output from

# dtrace -n 'profile-997hz /pid == $target/{@[stack()] = count()}' -c "python
test.py"

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