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Date:      Mon, 13 Jul 2020 07:39:56 +1200
From:      Jonathan Chen <jonc@chen.org.nz>
To:        Don Wilde <dwilde1@gmail.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: swap space issues
Message-ID:  <CAJuc1zO1uyv0Uoo3AJL=ZCy9vD-nvaZUpSVR60z6bJyACrOenA@mail.gmail.com>
In-Reply-To: <3afe4d2f-3b1e-a1c5-f947-5f57800317a6@gmail.com>
References:  <202007120628.06C6SfNB015907@sdf.org> <3afe4d2f-3b1e-a1c5-f947-5f57800317a6@gmail.com>

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On Mon, 13 Jul 2020 at 02:24, Don Wilde <dwilde1@gmail.com> wrote:
> On 7/11/20 11:28 PM, Scott Bennett via freebsd-stable wrote:
> >       I have read this entire thread to date with growing dismay, and I
> > thank Donald Wilde for reporting his ongoing troubles, although they
> > spoil my hopes that the kernel's memory management bugs that first became
> > apparent in 11.2-RELEASE (and -STABLE around the same time) were not
> > propagated into 12.x.  A recent update to stable/12 source tree made it
> > finally possible for me to build 12.1-STABLE under 11.4-PRERELEASE, and I
> > was just about to install the upgrade when this thread appeared.
> Spoiler alert. Since I gave up on Synth, I haven't had a single swap
> issue. It does appear to be one particular port that drove it nuts
> (apparently, one of the 'Google performance' bits, with a
> mismatched-brackets problem). I have rebuilt the machine several times,
> but that's more for my sense of tidiness than anything.

With synth you can reduce the number of workers to just "1" (ie:
Number_of_builders=1), if you just want your ports-build to complete
without any stress. However, one of the reasons why I use synth is
_because_ of the stress it can place on my 12-STABLE snapshots. If the
system is stable and performs well when under load, I feel just that
bit more assured about using it in production environments.

My 2 cents.
-- 
Jonathan Chen <jonc@chen.org.nz>



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