348 lines
19 KiB
TeX
348 lines
19 KiB
TeX
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\vspace{1.0em}
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\noindent{\Large\bfseries Cel karty}\par
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\vspace{0.35em}
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Uczeń rozróżnia wybór najwyższego priorytetu od time slicing między równymi priorytetami. Odtwarza tick oraz natychmiastowe wywłaszczenie po zmianie priorytetu i wiąże ślad aplikacji ze stanem Hazard3/GDB.
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\noindent{\Large\bfseries Zakres karty}\par
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\vspace{0.35em}
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Dwa CPU-bound taski o priorytecie 2 tworzą ślad A-B-A. Peer A podnosi Ready task z priorytetu 0 do 3; HIGH musi wykonać się przed powrotem vTaskPrioritySet. Verifier o priorytecie 1 publikuje PASS dopiero po zakończeniu wyższych tasków. Poza zakresem są delay, kolejki, semafory, ISR-safe API i C++.
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\vspace{0.55em}
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\textbf{Lekcja} & \textbf{Task} & \textbf{Najważniejsza idea} & \textbf{Priorytet} & \textbf{Status} & \textbf{Version} \\ \hline
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\hline
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\multicolumn{1}{|l|}{\textbf{\texttt{FC03}}} & \multicolumn{1}{l|}{\textbf{\texttt{Task01}}} & \multicolumn{1}{l|}{\textbf{Tick, priority selection, preemption i time slicing}} & \multicolumn{1}{l|}{\textbf{główny}} & \multicolumn{1}{l|}{\textbf{opracowane}} & \multicolumn{1}{l|}{\textbf{\texttt{v00.01}}} \\ \hline
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\normalsize
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\noindent{\small\bfseries A1 — Context \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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\vspace{0.35em}
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\begin{figure}[H]
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\centering
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\includegraphics[width=0.9303\linewidth,trim=0.000bp 0.000bp 0.000bp 0.000bp,clip]{\detokenize{../assets/a1-context.png}}
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\caption{A1 CONTEXT — timer, port, scheduler i taski aplikacji. — część 1/1 (r1 c1).}
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\label{fig:a1-context}
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\noindent{\small\bfseries A2 — Structure \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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\vspace{0.35em}
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\begin{figure}[H]
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\centering
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\includegraphics[width=0.95319\linewidth,trim=0.000bp 0.000bp 0.000bp 0.000bp,clip]{\detokenize{../assets/a2-structure.png}}
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\caption{A2 STRUCTURE — konteksty tasków i rekordy śladów. — część 1/1 (r1 c1).}
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\label{fig:a2-structure}
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\noindent{\small\bfseries A4 — Application \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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\vspace{0.35em}
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\begin{figure}[H]
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\centering
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\caption{A4 APPLICATION — topologia tasków i inwarianty priorytetów. — część 1/1 (r1 c1).}
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\label{fig:a4-application}
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\noindent{\small\bfseries A5 — Flow \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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\vspace{0.35em}
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\begin{figure}[H]
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\centering
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\caption{A5 część 1/2 — konfiguracja, start, pierwszy tick i A-B-A. — część 1/1 (r1 c1).}
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\label{fig:a5-flow-a}
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\noindent{\small\bfseries A5 — Flow \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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\vspace{0.35em}
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\centering
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\caption{A5 część 2/2 — priority raise, natychmiastowe wywłaszczenie i PASS. — część 1/1 (r1 c1).}
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||
\label{fig:a5-flow-b}
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||
\end{figure}
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||
\ESCSectionBlockEnd
|
||
\end{landscape}
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||
|
||
\clearpage
|
||
\begin{landscape}
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||
\ESCSectionBlockStart
|
||
\noindent{\small\bfseries A6 — State \hfill część 1/1 \textperiodcentered\ r1 c1}\par
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||
\vspace{0.35em}
|
||
\begin{figure}[H]
|
||
\centering
|
||
\includegraphics[width=0.95319\linewidth,trim=0.000bp 0.000bp 0.000bp 0.000bp,clip]{\detokenize{../assets/a6-state.png}}
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||
\caption{A6 STATE — przejścia high probe, peerów i verifiera. — część 1/1 (r1 c1).}
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||
\label{fig:a6-state}
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||
\end{figure}
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||
\ESCSectionBlockEnd
|
||
\end{landscape}
|
||
|
||
\clearpage
|
||
\begin{landscape}
|
||
\ESCSectionBlockStart
|
||
\noindent{\small\bfseries A7 — Runtime \hfill część 1/1 \textperiodcentered\ r1 c1}\par
|
||
\vspace{0.35em}
|
||
\begin{figure}[H]
|
||
\centering
|
||
\includegraphics[width=0.95426\linewidth,trim=0.000bp 0.000bp 0.000bp 0.000bp,clip]{\detokenize{../assets/a7-runtime.png}}
|
||
\caption{A7 RUNTIME — timer, ISR, scheduler, taski i końcowy dowód. — część 1/1 (r1 c1).}
|
||
\label{fig:a7-runtime}
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||
\end{figure}
|
||
\ESCSectionBlockEnd
|
||
\end{landscape}
|
||
|
||
\clearpage
|
||
\ESCSectionBlockStart
|
||
\section{Task01 — Scheduler experiment}
|
||
|
||
\begin{ESCTaskFrame}{TASK01 · Kontrolowany eksperyment schedulera FreeRTOS}
|
||
{\scriptsize\ttfamily 2214a13f-34c6-40a1-a561-70a00ec98285}\par
|
||
\begin{ESCBlockFrame}{A — model ticka i wyboru taska}
|
||
Najpierw odczytaj A1, A2 i A4 oraz zapisz przewidywaną kolejność.
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\begin{ESCStepFrame}{read-priorities · Odczytaj kontrakt priorytetów.}
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||
Wyjaśnij, dlaczego high=0, peery=2, verifier=1 nie powodują przedwczesnego uruchomienia high ani verifiera.
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||
\end{ESCStepFrame}
|
||
\begin{ESCStepFrame}{predict-traces · Przewidź dwa ślady.}
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||
Rozdziel task-change trace A-B-A od marker projection before-HIGH-after.
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||
\end{ESCStepFrame}
|
||
\end{ESCBlockFrame}
|
||
\begin{ESCBlockFrame}{B — deterministyczny replay E01–E12}
|
||
Każdy RUN replay zaczyna się od czystej RAM i zweryfikowanego obrazu.
|
||
\begin{ESCStepFrame}{follow-tick · Zbadaj pierwszy tick.}
|
||
Na E06 zapisz mcause, mepc, ISR SP i tick.
|
||
\end{ESCStepFrame}
|
||
\begin{ESCStepFrame}{follow-timeslice · Zbadaj A-B-A.}
|
||
Na E07 zapisz triplet tasków, ticki i liczbę obserwowanych zmian.
|
||
\end{ESCStepFrame}
|
||
\begin{ESCStepFrame}{follow-preemption · Zbadaj natychmiastowe wywłaszczenie.}
|
||
Porównaj E08, E09 i E10; pokaż, że HIGH wykonał się przed after_raise.
|
||
\end{ESCStepFrame}
|
||
\begin{ESCStepFrame}{finish-pass · Zamknij dowód.}
|
||
Na E11 sprawdź self-delete peerów, a na E12 końcowe inwarianty i PASS.
|
||
\end{ESCStepFrame}
|
||
\end{ESCBlockFrame}
|
||
\begin{ESCBlockFrame}{Ćwiczenie · Ćwiczenie — bounded observation bez time slicing}
|
||
Ustaw configUSE_TIME_SLICING=0, nie zmieniając dwóch CPU-bound peerów o priorytecie 2. Uruchom tylko ograniczoną obserwację debuggera; nie oczekuj PASS. Zapisz, który peer pozostaje Running, jaki jest tick count i dlaczego drugi może być głodzony. Następnie przywróć konfigurację.
|
||
\par\textbf{Evidence:} Timestampowany snapshot PC/SP, tick count i obu liczników iteracji oraz krótkie wyjaśnienie expected noncompletion.
|
||
\par\textbf{Acceptance:} Uczeń nie interpretuje braku PASS jako błędu harnessu i poprawnie wiąże głodzenie z brakiem rotacji równych priorytetów.
|
||
\end{ESCBlockFrame}
|
||
\tcblower\textbf{Task acceptance:} Program wypisuje PASS; trace zawiera A-B-A; marker projection to before-HIGH-after; pierwszy tick ma machine-timer mcause; TCB i stack są spójne.
|
||
\end{ESCTaskFrame}
|
||
\begin{ESCConclusionFrame}
|
||
Priorytet wybiera najwyższy Ready task. Time slicing rotuje wyłącznie taski o tym samym priorytecie, a uczynienie wyższego taska Ready może wywłaszczyć caller przed powrotem API.
|
||
\end{ESCConclusionFrame}
|
||
\ESCSectionBlockEnd
|
||
|
||
\end{document}
|