[LSF/MM/BPF TOPIC] Memory profiling using code tagging

[Suren Baghdasaryan <surenb@google.com>]

We would like to continue the discussion about code tagging use for
memory allocation profiling. The code tagging framework [1] and its
applications were posted as an RFC [2] and discussed at LPC 2022. It
has many applications proposed in the RFC but we would like to focus
on its application for memory profiling. It can be used as a
low-overhead solution to track memory leaks, rank memory consumers by
the amount of memory they use, identify memory allocation hot paths
and possible other use cases.
Kent Overstreet and I worked on simplifying the solution, minimizing
the overhead and implementing features requested during RFC review.

Kent Overstreet, Michal Hocko, Johannes Weiner, Matthew Wilcox, Andrew
Morton, David Hildenbrand, Vlastimil Babka, Roman Gushchin would be
good participants.

[1] https://lwn.net/Articles/906660/
[2] https://lore.kernel.org/all/20220830214919.53220-1-surenb@google.com/