Re: [PATCHv4 2/9] zram: Add recompression algorithm sysfs knob

From: Sergey Senozhatsky
Date: Wed Nov 02 2022 - 23:55:32 EST


On (22/11/03 12:05), Sergey Senozhatsky wrote:
> [..]
> > Just open question(I might be too paranoid?)
> >
> > I am thinking someone want to add third comp algorithm in future
> > to balance decompression and memory efficiency.
> >
> > If it's not too crazy idea, let's think about the interface.
> > Maybe, could we make the recomp knobs works like list?
> >
> > # A primary comp
> > echo "A" > /zram/comp_algo
> >
> > # Multiple secondary comps
> > echo "B threshold" > /zram/add_recomp_algo
> > echo "C threshold" > /zram/add_recomp_algo
> > echo "D threshold" > /zram/add_recomp_algo

As a side note:
The way it's implemented currently is that comps is an array, so we
can store more comps there. I sort of was thinking that we probably
can have more than two algos at some point the in the future (hence
the MULTI_COMPRESS config option).