Mechanism to reduce caches when low on memory?

[Noel Grandin]

On 2020/12/08 5:30 pm, Luboš Luňák wrote:
> 
>   In https://bugs.documentfoundation.org/show_bug.cgi?id=136244#c11 I got asked
> to make Skia's image cache size configurable or even make it use a "better"
> default size. Of course, there is no good size, whatever I choose. With

FWIW, My personal opinion is this

(1) make it configurable via our "expert options" UI to make the complainers happy
(2) by default, make the cache size scale roughly with current system RAM