Re: Path forward for Virtualized Swap?

[Chris Li]

On Mon, Sep 21, 2026 at 6:40 AM Rik van Riel <riel@xxxxxxxxxxx> wrote:
>
> On Mon, 2026-09-21 at 06:31 -1000, Chris Li wrote:
> >
> > Give me some real-world examples of people hitting this kind of
> > limit.
> > e.g. MAX(%)  > 100% and still have a usesable system. I suspect that
> > with 100% zswap usage, the system becomes unusable. Please show me a
> > real world case that proves me wrong.
> >
>
> Here's my desktop system right now. The amount
> of Zswapped is more than twice AnonPages, and
> the system stays perfectly usable.
>
> $ grep -E '(Anon|Zswap|GPU|Swap)' /proc/meminfo
> SwapCached:       252340 kB
> SwapTotal:      41523604 kB
> SwapFree:        9802088 kB
> Zswap:           8812236 kB
> Zswapped:       24927876 kB
> AnonPages:      11615760 kB
> AnonHugePages:   1402880 kB
> GPUActive:      13112428 kB
> GPUReclaim:        95980 kB
>
> This is also an example where I cannot really
> predict how much zswap space I need, because
> that depends on what AI model is loaded,
> which drives the GPUActive number, as well
> as the number of browser tabs.
>
> The system is perfectly responsive.

Great, that is getting somewhere. We are talking about actual usage. I
really appreciate that.

May I ask what the total amount of memory (RAM) in your system is?

I am not asking zswap compare to ANA memory. I want to get the % of
the total RAM.
I assume your desktop has more than 8G of RAM, right?

Chris

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