Messages in this thread | | | Date | Wed, 7 Feb 2024 15:05:03 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH v7 0/1] mm: report per-page metadata information |
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On Mon, 29 Jan 2024 14:42:03 -0800 Sourav Panda <souravpanda@google.com> wrote:
> This patch adds two new per-node fields, namely nr_page_metadata and > nr_page_metadata_boot to /sys/devices/system/node/nodeN/vmstat and a > global PageMetadata 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.
I'm not seeing why this is very useful. OK, you look at it and it tells you a number, but what action can a user take based upon that number?
Please tell us more about the value of this, the use cases, what prompted you to expend effort on this.
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