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Extends response-time analysis with an ISR tier above the classical task-priority fixed-point. ISRs identified by Spar_Timing::ISR_Priority steal CPU capacity first; residual capacity feeds task RTA. Tindell- Clark jitter terms (Dispatch_Jitter) inflate the recurrence in the standard way. Compute_Execution_Time's Time_Range is consumed as (BCET, WCET) — only WCET enters the recurrence; both emerge in a ResponseBand diagnostic for v0.8.0 trace comparison. New diagnostics: IrqResponseBudget, IrqBudgetViolated, IsrOverloadedCpu, MissingBottomHalfServer, ResponseBand. Non-regression: models with no Spar_Timing::* properties produce byte-identical RTA output to the prior implementation (verified by no_isrs_matches_classical_rta). Out of scope (v0.7.1): priority inheritance / ceiling protocols; multi-processor ISR migration. Track A commit 2 of 4. Precedes Lean convergence sketch (commit 3) and integration + COMPLIANCE final wording (commit 4). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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) Adds proofs/Proofs/Scheduling/RTAJittered.lean stating monotonicity and least-fixed-point convergence of the jittered response-time recurrence implemented as compute_response_time_jittered in PR #147. Theorem 2 connects the new function to the classical rtaStep when all jitters and ISR overheads vanish — the non-regression property that anchors the Rust-side test no_isrs_matches_classical_rta. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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…I integration (#154) Closes the v0.7.0 Track A milestone: - COMPLIANCE.md "In progress / v0.7.0" expanded into a full narrative covering all four Track A commits (foundation #145, hierarchical RTA #147, Lean convergence #148, this close-out), the Track B variant- contract foundation (#144), v0.7.x infrastructure landings (#141-143, #151), and v0.8.0 planning anchors (Track D #149/#152, Track E #150/#153). - Updated header date to 2026-04-25 and crate count from "16 crates, 1200+ tests" to "17 crates, 1900+ tests" reflecting the test growth through Track A and the v0.7.x infrastructure additions. - New CLI integration test crates/spar-cli/tests/track_a_close_out.rs exercises the full parse → instance → analyze pipeline on a model using the Spar_Timing::ISR_* property surface plus a sporadic handler thread. The unit + fixture tests in spar-analysis cover the algorithm at the analysis-crate level; this test guards the property surface flowing through the CLI binary end-to-end. Out-of-scope items explicitly recorded: PIP/PCP blocking deferred to v0.7.1, multi-processor ISR migration deferred, cache-aware interference inflation deferred to v1.0+. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Extends the v0.7.0 hierarchical IRQ-aware RTA with a configurable blocking term B_i for tasks holding shared resources under PIP or PCP. Reads AS5506 Thread_Properties::Locking_Protocol and a new Spar_Timing::Critical_Section_Blocking time value. Joseph-Pandya / Buttazzo: R_i(n+1) = C_i + J_i + B_i + Σ⌈...⌉·C_j + ISR. Non-regression: models without Locking_Protocol produce byte-identical output to main (verified by no_locking_matches_v070 test). Closes the v0.7.1 follow-up explicitly carved out by #147 / #149. New requirement: REQ-TIMING-PIP-001. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Extends the v0.7.0 hierarchical IRQ-aware RTA with a configurable blocking term B_i for tasks holding shared resources under PIP or PCP. Reads AS5506 Thread_Properties::Locking_Protocol and a new Spar_Timing::Critical_Section_Blocking time value. Joseph-Pandya / Buttazzo: R_i(n+1) = C_i + J_i + B_i + Σ⌈...⌉·C_j + ISR. Non-regression: models without Locking_Protocol produce byte-identical output to main (verified by no_locking_matches_v070 test). Closes the v0.7.1 follow-up explicitly carved out by #147 / #149. New requirement: REQ-TIMING-PIP-001. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Extends the v0.7.0 hierarchical IRQ-aware RTA with a configurable blocking term B_i for tasks holding shared resources under PIP or PCP. Reads AS5506 Thread_Properties::Locking_Protocol and a new Spar_Timing::Critical_Section_Blocking time value. Joseph-Pandya / Buttazzo: R_i(n+1) = C_i + J_i + B_i + Σ⌈...⌉·C_j + ISR. Non-regression: models without Locking_Protocol produce byte-identical output to main (verified by no_locking_matches_v070 test). Closes the v0.7.1 follow-up explicitly carved out by #147 / #149. New requirement: REQ-TIMING-PIP-001. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
v0.7.0 Track A commit 2 of 4. Implements hierarchical IRQ-aware RTA per the design in #146.
What's in
Dispatch_Jitterget_execution_time_range;ResponseBanddiagnostic for v0.8.0REQ-TIMING-IRQ-{001,002,003}from feat(timing): Spar_Timing + Spar_Trace property sets (Track A foundation) (v0.7.0) #145What's explicitly NOT in
Critical non-regression
no_isrs_matches_classical_rtaasserts byte-identical output for models without anySpar_Timing::*property. It is run first in the test plan.Test plan
cargo test -p spar-analysis— all green (791 lib + 3 fixture tests).expected.jsoncargo clippy --workspace --all-targets -- -D warningscleancargo fmt --all -- --checkcleanrivet validatePASS🤖 Generated with Claude Code