Re: [RFC PATCH 0/2] mm: multi-gen LRU: per-process heatmaps

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On Thu, Jan 9, 2025 at 3:48 AM Muyang Tian <tianmuyang@xxxxxxxxxx> wrote:
>
> Hi Yuanchu,
>
> I'm working on observability and the programmable page generation policy of MGLRU based on eBPF, using a similar approach to yours.
> I'd like to know if there is any related work, such as the application of eBPF in MGLRU?
Not that I'm aware of. There were some patches fiddling with the
generation placement of pages but I can't seem to find them.

> Also, this RFC provides a user space interface to call run_aging(), which is called periodically in the demo.
> Do you plan to optimize this, perhaps by calling run_aging() based on page access observation results?
Right now I don't have any plans to optimize this patch series. What
are your use cases? All I cared about was one off observability of
accesses and not much thought went into optimizing the tool.

Thanks,
Yuanchu





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