On Fri, 20 Nov 2020 20:37:43 +0000, Andy Burns wrote:

> Martin Gregorie wrote:
>
>> The Wikipedia article I referenced describes zram as a swap device
>
> I think it's just a ram disc with compression, not specifically for swap
>
>> and zswap as a cache front-ending the swap device, i.o.w. zswap can
>> deal with memory over-subscription by evicting pages to an external
>> swap device: zram can't do this because it IS the swap device.
>>
>> The Wikipedia article describes them as alternatives.
>
> Yep.
>
> My machine with the existing 5.9GB swap device and the new 4GB zram swap
> device, certainly thinks it's got a total 9.9GB swap space now.
>
> # free -hwt
>                total        used        free      shared     buffers
>     cache   available
> Mem:           31Gi       2.3Gi        26Gi        45Mi       317Mi
>    2.4Gi        28Gi
> Swap:         9.9Gi          0B       9.9Gi Total:         41Gi
> 2.3Gi        36Gi

Useful to know. Thanks.




--
--
Martin    | martin at
Gregorie  | gregorie dot org

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