Fission Benchmark

Fission ↔ Ghidra layered parity

Fission and Ghidra share a p-code-class intermediate representation. This page measures structural agreement — assembly bytes, p-code ops (strict/loose dual), CFG topology, and function inventories — with Ghidra as reference and Fission as candidate.

Match rates here are not multi-decompiler quality rankings. Oracle semantic pass rate lives on the Multi-decompiler page.

Ranking surface

Multi-decompiler quality →

Semantic oracle, coverage, same-function matrix, and full tool grid.

Reference contract

Ghidra inventory & IR

Unified runner: python -m runner.run_parity with decompilers fission,ghidra.

Parity data statusunavailable

No CFG, P-code, assembly, or function-inventory telemetry is available for the latest Fission release. Older and unversioned artifacts are intentionally hidden; rerun parity for the current release.

Dual metrics at a glance

Prefer dual rates for triage. Strict set / full equality is intentionally hard (CRT, space IDs, inventory heuristics).

No parity telemetry loaded. Run python -m runner.run_parity then python -m benchmark.telemetry.aggregate.

Layer stack · full telemetry

Primary publishable stages: assembly · p-code · CFG · function discovery. Decode / extension tracks are listed but not headline quality.

No parity telemetry yet. Run python -m runner.run_parity --corpus dev then python -m benchmark.telemetry.aggregate.

Core pair · semantic side-by-side

From the multi-decomp envelope (dev), filtered to Fission + Ghidra only. Useful context — not the ranking surface for other tools (see Multi-decompiler).

Fission · candidate

Semantic mean64.1%

Perfect / tested105/213

Adapter clean / attempted213/216

Boundary invalid3

Mean time1379ms

Ghidra · reference

Semantic mean72.7%

Perfect / tested157/215

Adapter clean / attempted215/216

Boundary invalid1

Mean time11692ms

Core · same-function rates

Boundary contract on the core pair (expected ~1.0 after address anchors). Core cohort rate: 99.0%.

Request contract (binary, addr) — did the adapter return that function unit? Primary rate = direct / (direct + boundary_*). Not a semantic ranking axis. Address anchor rate: 0.0%.

Cohorts — core: 99.0% (loose 99.1%) · multi: — · all: 99.0%

Decompiler	Cohort	same_fn_rate	loose_rate	Status counts
fission	core	98.6%	98.6%	direct_function:213 · whole_program_output:3
ghidra	core	99.4%	99.5%	direct_function:179 · needs_normalization:36 · whole_program_output:1

Reproduce

export FISSION_HOST_PORT=8007
python -m runner.run_parity --corpus dev --limit 20 --decompilers fission,ghidra
python -m benchmark.telemetry.aggregate
# → public/parity-telemetry.json

python -m benchmark.function_discovery.run --limit 10
python scripts/check_parity_smoke.py public/parity-telemetry.json --require-provenance
python scripts/check_reliability.py public/parity-telemetry.json