Re: Path forward for Virtualized Swap?

[Rik van Riel]

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.

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