On Tue, May 17, 2022 at 8:05 PM Jens Axboe [off-list ref] wrote:

On 5/17/22 7:46 PM, Yu Zhao wrote:

quoted

TLDR
====
The current page reclaim is too expensive in terms of CPU usage and it
often makes poor choices about what to evict. This patchset offers an
alternative solution that is performant, versatile and
straightforward.

Where's the changelog since v10?

Apologies for my laziness.

The changes are mainly nits, e.g., small refactorings, additional
comments, etc.; relatively major ones are:

* VM_BUG_ON() -> VM_WARN_ON_ONCE()
* Removed `depends on !MAXSMP`

There are no bug fixes or structural changes in v11. I do have a bug
fix [1] queued for the coming v12, which I have been benchmarking on
top of 5.19-rc1. So far I see no improvements or regressions, compared
with v10 on top of 5.18-rc1.

[1] https://forum.armbian.com/topic/20018-mglru-patches-to-bring-down-kswapd-cpu-usage