It is now built into Fedora29-arm. That is where Mark got the source and the systemd support. Yes, earlier many just used it. Now Fedora-arm is based on it. On the Fedora-arm list, Peter Robinson has said he is seeing 4-5 fold compression. That means that if you use a factor of 2 and have a 1GB memory SOC, that is effectively 2.5GB ram. Or use a factor of 4 for effectively 1.75GB and less 'swapping'. So you can use your 1GB duo core system more effectively, even if you currently have swap on a HD or SSD sata or USB attached. On 10/12/18 12:25 PM, Gordan Bobic wrote: > Because swapping to SD card is slow, swapping to zram is fast, and > zram only takes about 1/2 of the RAM that it provides. > It's basically RAM compression. > It works and makes a positive difference, even without exceedingly > slow storage. > > On Fri, Oct 12, 2018 at 5:16 PM Fred Gleason <fredg at paravelsystems.com > <mailto:fredg at paravelsystems.com>> wrote: > > On Oct 7, 2018, at 07:58, Robert Moskowitz <rgm at htt-consult.com > <mailto:rgm at htt-consult.com>> wrote: > >> I have very recently learned about zram-swap. Fedora-29-arm is >> using it. It supposedly makes a considerable difference even >> over HD swap. >> >> Since many (potential) users of Centos-arm do not have a ready >> HD, perhaps we can switch the image from a physical partition to >> zram? Or at least instructions to change to this on the wiki. > > Not to be utterly naive, but why is swap required on such systems > at all? To take core RAM and repurpose it as swap would seem to > vitiate the entire point of having a virtual memory subsystem in > the first place. > > Cheers! > > > |----------------------------------------------------------------------| > | Frederick F. Gleason, Jr. | Chief Developer > | > | | Paravel Systems | > |----------------------------------------------------------------------| > | Perfection is reached, not when there is no longer anything to > add, | > | but when there is no longer anything to take away. | > | -- Antoine de Saint-Exupery > | > |----------------------------------------------------------------------| > _______________________________________________ > Arm-dev mailing list > Arm-dev at centos.org <mailto:Arm-dev at centos.org> > https://lists.centos.org/mailman/listinfo/arm-dev > > > _______________________________________________ > Arm-dev mailing list > Arm-dev at centos.org > https://lists.centos.org/mailman/listinfo/arm-dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/arm-dev/attachments/20181012/0c659fa3/attachment-0006.html>