On Sun, Dec 6, 2020 at 11:13 AM Chris Murphy <li...@colorremedies.com> wrote:
> https://fedoraproject.org/wiki/Changes/SwapOnZRAM#Detailed_Description > > Let me know if you have questions not answered there. A key point is > this is not a preallocation. Creating a 4G /dev/zram0 device doesn't > reserve or consume 4G. It's dynamically allocated, and even once full > it's not using that amount of memory, instead actual memory consumed > is related to the compression ratio achieved. Typical is 1 to 1.5G > memory consumption to swap out 4G worth of pages, for a net gain of > 2.5G - 3G memory for use by other programs. And without having to > write to disk at all. > > Not perfect, and not magic. It does have some tradeoffs. > I have a follow up question. Why not just disable swap entirely, rather than keeping a swap store in memory ? -- Regards, Sreyan Chakravarty
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