Re: [PATCH v8 1/1] mm: report per-page metadata information

[Andrew Morton]

On Wed, 14 Feb 2024 14:57:40 -0800 Sourav Panda <souravpanda@xxxxxxxxxx> wrote:

> Adds two new per-node fields, namely nr_memmap and nr_memmap_boot,
> to /sys/devices/system/node/nodeN/vmstat and a global Memmap field
> to /proc/meminfo. This information can be used by users to see how
> much memory is being used by per-page metadata, which can vary
> depending on build configuration, machine architecture, and system
> use.

Would this information be available by the proposed memory
allocation profiling?

https://lkml.kernel.org/r/20240212213922.783301-1-surenb@xxxxxxxxxx