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SubjectRe: [PATCH] mm/slub: use stackdepot to save stack trace in objects
On Wed, 14 Apr 2021, wrote:

> From: Oliver Glitta <>
> Many stack traces are similar so there are many similar arrays.
> Stackdepot saves each unique stack only once.
> Replace field addrs in struct track with depot_stack_handle_t handle.
> Use stackdepot to save stack trace.
> The benefits are smaller memory overhead and possibility to aggregate
> per-cache statistics in the future using the stackdepot handle
> instead of matching stacks manually.
> Signed-off-by: Oliver Glitta <>

Acked-by: David Rientjes <>

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