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SubjectRe: [PATCH 07/12] perf_events: add LBR software filter support for Intel X86
> just with self-modifying (JIT) code, though the depth of LBR is such that
> this is very unlikely (it must happen in the last 16 branches before the
> PMU interrupt).

Interrupts can make this window arbitary long.


-- -- Speaking for myself only.

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