[Arm-dev] Using zram-swap

Robert Moskowitz rgm at htt-consult.com
Sun Oct 7 17:06:43 UTC 2018

On 10/7/18 11:57 AM, Pablo Sebastián Greco wrote:
> Too many questions together... ;-)
> El 7/10/18 a las 08:58, Robert Moskowitz escribió:
>> I have very recently learned about zram-swap.  Fedora-29-arm is using 
>> it.  It supposedly makes a considerable difference even over HD swap.
> Do you have a link for me to read about that? I'd like to see some 
> numbers on performance, specially on the CPU, because small ARM 
> devices are not exactly fast to compress.

You could ask on the Fedora-arm list where Peter Robinson (I believe he 
is part of the Fedora development with heavy presence in the arm work) 
recently explained, kind of, how F29-arm is using it.

>> 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.
> Switch might be difficult, but maybe generate a "tech preview" 
> alternative build.
> This is the link to how we create the images, maybe  you could send me 
> some changes to test 
> https://github.com/CentOS/sig-core-AltArch/tree/master/image_build

Minimally in the wiki, how to switch from a partition swap to zram. I am 
working on learning more about it...

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