[Bug 275594] High CPU usage by arc_prune; analysis and fix

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275594

--- Comment #102 from Anton Saietskii <vsasjason@gmail.com> ---
(In reply to Olivier Certner from comment #101)

> First of all, let me say I've never personally experienced the bug
> reported here. I'm using poudriere for big builds from time to time,
> and with ZFS, but on machines with plenty of RAM, so that may
> explain why. 

Olivier, I'm unsure if it can be considered as plenty, but I do experince this
on a i7-7820HQ with 64G of RAM.
Poudriere configured with USE_TMPFS="data localbase wrkdir". I can reproduce
this with the following few steps:
1. Wait until ARC fills RAM so I have like ~2 gigs left.
2. Start 'poudriere bulk' on whatever with big distfile (e.g. firefox, rust,
libreoffice). Jobs count doesn't matter, even 1 "works".
3. Almost as soon as that big distfile starts unpacking to tmpfs -- voila,
issue pops up.

-- 
You are receiving this mail because:
You are the assignee for the bug.