Date: Sun, 22 Jan 2023 15:11:47 +0100 (CET) From: Ronald Klop <ronald-lists@klop.ws> To: Mark Millard <marklmi@yahoo.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: An idea for swap partition size vs. swap space size in use handling Message-ID: <159467120.7.1674396707299@mailrelay> In-Reply-To: <E187AA6B-6832-4A75-81BC-21E0A999154D@yahoo.com> References: <E187AA6B-6832-4A75-81BC-21E0A999154D.ref@yahoo.com> <E187AA6B-6832-4A75-81BC-21E0A999154D@yahoo.com>
next in thread | previous in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Van: Mark Millard <marklmi@yahoo.com> Datum: zondag, 22 januari 2023 05:41 Aan: freebsd-current <freebsd-current@freebsd.org> Onderwerp: An idea for swap partition size vs. swap space size in use handling > > I have boot media that are each set up to boot a variety > of systems that have widely different RAM sizes, from > 1 GiBytes to 64 GiBytes for the aarch64 examples of this. > > This has lead to having multiple swap partitions of > various sizes so that I can have total swap spaces that > are somewhat under the recommended maximum sizes for the > amount of RAM in each of those systems that a given media > can boot. > > It would be nice if I could have just one swap partition > on a given boot media, one that is more than sufficient > in size for all but the biggest RAM system --but to then > be able to tell the system to just use up to the > recommended swap space size and to ignore any extra swap > space in the swap partition. > > If such could be done, I'd no longer use multiple swap > partitions at the same time in order to get to a desired > total for the system at hand at the time. > > Of course, that still leaves what to do when multiple > swap partitions are enabled if such a "ignore what > would be extra" mode was also enabled. As I'd not use > such, I've no specific recommendations to make that > would make any difference to my use. > > === > Mark Millard > marklmi at yahoo.com > > Â > > > Hi Mark, Do you mean you would like to be able to add a "size" parameter to the fstab swap line? /dev/da0p1 none swap sw,size=1g 0 0 Another option I can think of is using the "gnop" geom provider. It has a -s parameter to set the size. Regards, Ronald. Â [-- Attachment #2 --] <html><head></head><body><br> <p><strong>Van:</strong> Mark Millard <marklmi@yahoo.com><br> <strong>Datum:</strong> zondag, 22 januari 2023 05:41<br> <strong>Aan:</strong> freebsd-current <freebsd-current@freebsd.org><br> <strong>Onderwerp:</strong> An idea for swap partition size vs. swap space size in use handling</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">I have boot media that are each set up to boot a variety<br> of systems that have widely different RAM sizes, from<br> 1 GiBytes to 64 GiBytes for the aarch64 examples of this.<br> <br> This has lead to having multiple swap partitions of<br> various sizes so that I can have total swap spaces that<br> are somewhat under the recommended maximum sizes for the<br> amount of RAM in each of those systems that a given media<br> can boot.<br> <br> It would be nice if I could have just one swap partition<br> on a given boot media, one that is more than sufficient<br> in size for all but the biggest RAM system --but to then<br> be able to tell the system to just use up to the<br> recommended swap space size and to ignore any extra swap<br> space in the swap partition.<br> <br> If such could be done, I'd no longer use multiple swap<br> partitions at the same time in order to get to a desired<br> total for the system at hand at the time.<br> <br> Of course, that still leaves what to do when multiple<br> swap partitions are enabled if such a "ignore what<br> would be extra" mode was also enabled. As I'd not use<br> such, I've no specific recommendations to make that<br> would make any difference to my use.<br> <br> ===<br> Mark Millard<br> marklmi at yahoo.com<br> <br> Â </div> <hr></div> </blockquote> <br> <br> Hi Mark,<br> <br> Do you mean you would like to be able to add a "size" parameter to the fstab swap line?<br> <br> /dev/da0p1 none swap sw,size=1g 0 0<br> <br> Another option I can think of is using the "gnop" geom provider. It has a -s parameter to set the size.<br> <br> Regards,<br> Ronald.<br> Â </body></html>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?159467120.7.1674396707299>