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Date:      Mon, 21 Nov 2022 18:42:44 +0000 (UTC)
From:      "Bjoern A. Zeeb" <bz@FreeBSD.org>
To:        freebsd-hackers@freebsd.org
Subject:   Can we "pause" in loader and ddb>?
Message-ID:  <oso1756-4q74-7850-4s5r-7sq5qr0sp18@mnoonqbm.arg>

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Hi,

having a VM sitting (a) in loader prompt or (b) in ddb> makes the fans
go loud on a test-laptop which makes one wonder if we can avoid that.
Note -- I assume also on real HW though that's less likely observered
here.

For example I am sitting in a 4 vCPU bhyve current in ddb> and two
threads are at 100% on the base system.  Do we need to heat up the
planet doing that or are there alternatives?  I haven't looke dta the
code in ages and I assume we need to poll in these situations on the
console and for interactivity often enough?  Can we "pause"?   And why
would two [v]CPUs be at 100% and not just one as I would expect all but
one to be stopped?

/bz

-- 
Bjoern A. Zeeb                                                     r15:7



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