Date: Tue, 8 Nov 2022 12:56:10 +0100 (CET) From: Ronald Klop <ronald-lists@klop.ws> To: mike@karels.net Cc: jmg@freebsd.org, freebsd-arm@freebsd.org Subject: Re: adding swap when expanding root filesystem Message-ID: <95847460.127804.1667908570062@localhost> In-Reply-To: <202211071610.2A7GAcHl090048@mail.karels.net> References: <202211071610.2A7GAcHl090048@mail.karels.net>
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------=_Part_127803_560799664.1667908570055 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Van: Mike Karels <mike@karels.net> Datum: maandag, 7 november 2022 17:10 Aan: freebsd-arm@freebsd.org CC: jmg@freebsd.org Onderwerp: adding swap when expanding root filesystem > > This question is not really arm-specific, but I couldn't think of a better > mailing list for it. > > There are peridic issues reported on small systems like Raspberry Pi > where people are running buildworld or poudriere and running out of > memory. As the user gets no control over the disk layout when installing, > there is no option to add swap space on the install image. I have added > swap space on a USB disk, but this is often not an option. It occurred > to me that it might be reasonable to add swap space before expanding > the root filesystem if there is sufficient space. I have a prototype, > and wondered if this is a good thing to do. Granted, this will often > create swap on microSD, which is not optimal, but probably better than > nothing. > > The current prototype creates a swap partition which is 1/10 of the disk > if the disk is at least 15 GB and the initial root partition is no more > than 1/3 of the disk, but only up to 1.5x of physical memory. I would > probably enable this by default, but provide a way to disable it via a > kenv variable and/or a variable in /etc/rc.conf. > > Thoughts? > > Mike > Hi, Would you mind sharing your prototype? Regards, Ronald. ------=_Part_127803_560799664.1667908570055 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <html><head></head><body> <p><strong>Van:</strong> Mike Karels <mike@karels.net><br> <strong>Datum:</strong> maandag, 7 november 2022 17:10<br> <strong>Aan:</strong> freebsd-arm@freebsd.org<br> <strong>CC:</strong> jmg@freebsd.org<br> <strong>Onderwerp:</strong> adding swap when expanding root filesystem</p> <blockquote style="padding-right: 0px; padding-left: 5px; margin-left: 5px; border-left: #000000 2px solid; margin-right: 0px"> <div class="MessageRFC822Viewer" id="P"> <div class="TextPlainViewer" id="P.P">This question is not really arm-specific, but I couldn't think of a better<br> mailing list for it.<br> <br> There are peridic issues reported on small systems like Raspberry Pi<br> where people are running buildworld or poudriere and running out of<br> memory. As the user gets no control over the disk layout when installing,<br> there is no option to add swap space on the install image. I have added<br> swap space on a USB disk, but this is often not an option. It occurred<br> to me that it might be reasonable to add swap space before expanding<br> the root filesystem if there is sufficient space. I have a prototype,<br> and wondered if this is a good thing to do. Granted, this will often<br> create swap on microSD, which is not optimal, but probably better than<br> nothing.<br> <br> The current prototype creates a swap partition which is 1/10 of the disk<br> if the disk is at least 15 GB and the initial root partition is no more<br> than 1/3 of the disk, but only up to 1.5x of physical memory. I would<br> probably enable this by default, but provide a way to disable it via a<br> kenv variable and/or a variable in /etc/rc.conf.<br> <br> Thoughts?<br> <br> Mike<br> </div> </div> </blockquote> <br> <br> Hi,<br> <br> Would you mind sharing your prototype?<br> <br> Regards,<br> Ronald.<br> <br> </body></html> ------=_Part_127803_560799664.1667908570055--
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