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ARMSX2/tools
Brian DegenhardtandClaude Fable 5 00bd20c381 perf: ee_code_census --brmis mode — P2-2 mispredict attribution
Buckets mispredict-event sample IPs (perf record -e r22/r10) into native /
per-region (EE+IOP dispatchers) / JIT blocks by instruction class at the IP,
with block-entry reported separately (target-side skid of incoming indirect
edges). DispatcherReg is pinned by code signature (Ldr w0,[RSTATE,#pc] .. Br
x17) — B-target clustering is printed as a diagnostic only, its hottest
non-event cluster is JITCompile via unlinked link placeholders. EE blocks
are split jr-exit (tail B->DispatcherReg) vs linked as a second cut on the
guest-indirect funnel share.

Step 0b of the P2-2 branch-mispredict campaign (MAMBO-X64-style RAS-paired
return cache); gates G1 per plan.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-13 15:55:14 -07:00
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2025-12-08 23:46:07 +01:00