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Commit d5871c8f authored by Pierre Roux's avatar Pierre Roux
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Fix some Admitted

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analysis/abstract/ideal_jlfp_rta.v
View file @ d5871c8f
......@@ -261,13 +261,12 @@ Section JLFPInstantiation.
have Fact: forall b, ~~ b + b = true; first by intros b; destruct b.
rewrite Bool.andb_true_r Fact; simpl; rewrite lt0b; clear Fact.
apply/hasP; exists j.
Admitted.
(* * rewrite mem_filter; apply/andP; split; first by done. *)
(* by eapply arrivals_between_sub with (t2 := 0) (t3 := upp); eauto 2. *)
(* * destruct (hep_job s j) eqn:HP; apply/orP; [right|left]; last by done. *)
(* by rewrite /is_interference_from_another_hep_job EQ *)
(* /another_hep_job NEQ Bool.andb_true_r. *)
(* Qed. *)
* rewrite in_fsetE inE eqxx andbT.
exact: (arrivals_between_sub _ _ 0 _ upp).
* destruct (hep_job s j) eqn:HP; apply/orP; [right|left]; last by done.
by rewrite /is_interference_from_another_hep_job EQ
/another_hep_job NEQ Bool.andb_true_r.
Qed.
(** In this section we prove that the (abstract) cumulative interfering workload is equivalent to
conventional workload, i.e., the one defined with concrete schedule parameters. *)
......@@ -465,11 +464,11 @@ Section JLFPInstantiation.
intros; apply QT.
- by apply in_arrivals_implies_arrived in H4.
- by move: H5 => /andP [H6 H7].
- by apply in_arrivals_implies_arrived_between in H4.
Admitted.
(* - by apply in_arrivals_implies_arrived_between in H4. *)
(* } *)
(* { rewrite negb_and Bool.negb_involutive; apply/orP. *)
(* case ARR: (arrived_before j t); [right | by left]. *)
(* case ARR: (arrived_before j t); [right | by left]. *)
(* apply QT; try eauto 2. *)
(* } *)
(* Qed. *)
......
analysis/facts/busy_interval/busy_interval.v
View file @ d5871c8f
......@@ -9,6 +9,9 @@ Require Export prosa.analysis.definitions.work_bearing_readiness.
(** Throughout this file, we assume ideal uni-processor schedules. *)
Require Import prosa.model.processor.ideal.
Local Open Scope fset_scope.
Local Open Scope nat_scope.
(** * Existence of Busy Interval for JLFP-models *)
(** In this module we derive a sufficient condition for existence of
busy intervals for uni-processor for JLFP schedulers. *)
......@@ -188,37 +191,35 @@ Section ExistsBusyIntervalJLFP.
by rewrite -REL; eapply job_pending_at_arrival; eauto 2.
+ by apply (H_priority_is_reflexive 0).
- by exfalso; move_neq_down CONTR; eapply leq_ltn_trans; eauto 2.
- have EX: exists hp__seq: seq Job,
- have [hp__seq SE]: exists hp__seq: {fset Job},
forall j__hp, j__hp \in hp__seq <-> arrives_in arr_seq j__hp /\ job_pending_at j__hp t /\ hep_job j__hp j.
{ exists (filter (fun jo => (job_pending_at jo t) && (hep_job jo j)) (arrivals_between 0 t.+1)).
{ exists [fset jo in arrivals_between 0 t.+1 | job_pending_at jo t && hep_job jo j].
intros; split; intros T.
- move: T; rewrite mem_filter; move => /andP [/andP [PEN HP] IN].
repeat split; eauto using in_arrivals_implies_arrived.
Admitted.
(* - move: T => [ARR [PEN HP]]. *)
(* rewrite mem_filter; apply/andP; split; first (apply/andP; split); try done. *)
(* eapply arrived_between_implies_in_arrivals; try done. *)
(* by apply/andP; split; last rewrite ltnS; move: PEN => /andP [T _]. *)
(* } move: EX => [hp__seq SE]; case FL: (hp__seq) => [ | jhp jhps]. *)
(* + subst hp__seq; exfalso. *)
(* move: GE; rewrite leq_eqVlt; move => /orP [/eqP EQ| GE]. *)
(* * subst t. *)
(* apply NQT with t1.+1; first by apply/andP; split. *)
(* intros jhp ARR HP ARRB; apply negbNE; apply/negP; intros NCOMP. *)
(* move: (SE jhp) => [_ SE2]. *)
(* rewrite in_nil in SE2; feed SE2; [clear SE2 | by done]. *)
(* repeat split; try done; first apply/andP; split; try done. *)
(* apply/negP; intros COMLP. *)
(* move: NCOMP => /negP NCOMP; apply: NCOMP. *)
(* by apply completion_monotonic with t1. *)
(* * apply NQT with t; first by apply/andP; split. *)
(* intros jhp ARR HP ARRB; apply negbNE; apply/negP; intros NCOMP. *)
(* move: (SE jhp) => [_ SE2]. *)
(* rewrite in_nil in SE2; feed SE2; [clear SE2 | by done]. *)
(* by repeat split; auto; apply/andP; split; first apply ltnW. *)
(* + move: (SE jhp)=> [SE1 _]; subst; clear SE. *)
(* by exists jhp; apply SE1; rewrite in_cons; apply/orP; left. *)
(* Qed. *)
- move: T; rewrite in_fsetE inE => /andP[IN /andP[PEN HP]].
split=> [|//]; exact: in_arrivals_implies_arrived IN.
- move: T => [ARR [PEN HP]].
rewrite in_fsetE inE; apply/andP; split; last by apply/andP; split.
apply: arrived_between_implies_in_arrivals ARR _ => //.
by apply/andP; split; last rewrite ltnS; move: PEN => /andP [T _].
} case: (fset_0Vmem hp__seq) => [hp__seq0|[jhp jhpP]].
+ subst hp__seq; exfalso.
move: GE; rewrite leq_eqVlt; move => /orP [/eqP EQ| GE].
* subst t.
apply NQT with t1.+1; first by apply/andP; split.
intros jhp ARR HP ARRB; apply negbNE; apply/negP; intros NCOMP.
move: (SE jhp) => [_ SE2].
rewrite in_nil in SE2; feed SE2; [clear SE2 | by done].
repeat split; try done; first apply/andP; split; try done.
apply/negP; intros COMLP.
move: NCOMP => /negP NCOMP; apply: NCOMP.
by apply completion_monotonic with t1.
* apply NQT with t; first by apply/andP; split.
intros jhp ARR HP ARRB; apply negbNE; apply/negP; intros NCOMP.
move: (SE jhp) => [_ SE2].
rewrite in_nil in SE2; feed SE2; [clear SE2 | by done].
by repeat split; auto; apply/andP; split; first apply ltnW.
+ exists jhp; exact: (SE jhp).1.
Qed.
(** We prove that at any time instant [t] within <<[t1, t2)>> the processor is not idle. *)
Lemma not_quiet_implies_not_idle:
......
analysis/facts/busy_interval/priority_inversion.v
View file @ d5871c8f
......@@ -126,9 +126,8 @@ Section PriorityInversionIsBounded.
~ is_idle sched t.
Proof.
intros IDLE.
Admitted.
(* by exfalso; eapply not_quiet_implies_not_idle with (t0 := t); eauto 2 with basic_facts. *)
(* Qed. *)
by exfalso; eapply not_quiet_implies_not_idle with (t0 := t); eauto 2 with basic_facts.
Qed.
(** Next we consider two cases: (1) when [t] is less than [t2 - 1] and (2) [t] is equal to [t2 - 1]. *)
Lemma t_lt_t2_or_t_eq_t2:
......@@ -308,42 +307,41 @@ Section PriorityInversionIsBounded.
move => tp t PRPOINT /andP [GEtp LTtp] /andP [LEtp LTt].
ideal_proc_model_sched_case_analysis_eq sched t jhp.
{ apply instant_t_is_not_idle in Idle; first by done.
Admitted.
(* by apply/andP; split; first apply leq_trans with tp. } *)
(* exists jhp. *)
(* have HP: hep_job jhp j. *)
(* { intros. *)
(* move:(H_valid_model_with_bounded_nonpreemptive_segments) => [PREE ?]. *)
(* specialize (scheduling_of_any_segment_starts_with_preemption_time arr_seq sched H_sched_valid PREE jhp t Sched_jhp) => SOAS. *)
(* move: SOAS => [prt [/andP [_ LE] [PR SCH]]]. *)
(* case E:(t1 <= prt). *)
(* - move: E => /eqP /eqP E; rewrite subn_eq0 in E. *)
(* edestruct not_quiet_implies_exists_scheduled_hp_job_at_preemption_point as [jlp [_ [HEP SCHEDjhp]]]; eauto 2. *)
(* { by apply /andP; split; last by apply leq_ltn_trans with t. } *)
(* enough (EQ : jhp = jlp); first by subst. *)
(* eapply ideal_proc_model_is_a_uniprocessor_model with (t0 := prt); eauto; *)
(* by apply SCH; apply/andP; split. *)
(* - move: E => /eqP /neqP E; rewrite -lt0n subn_gt0 in E. *)
(* apply negbNE; apply/negP; intros LP; rename jhp into jlp. *)
(* edestruct not_quiet_implies_exists_scheduled_hp_job_at_preemption_point *)
(* as [jhp [_ [HEP SCHEDjhp]]]; [ | apply PRPOINT| ]; first by apply/andP; split. *)
(* move: LP => /negP LP; apply: LP. *)
(* enough (EQ : jhp = jlp); first by subst. *)
(* eapply ideal_proc_model_is_a_uniprocessor_model with (j1 := jhp) (t0 := tp); eauto. *)
(* by apply SCH; apply/andP; split; first apply leq_trans with t1; auto. *)
(* } *)
(* repeat split; try done. *)
(* move: (H_busy_interval_prefix) => [SL [QUIET [NOTQUIET EXj]]]; move: (Sched_jhp) => PENDING. *)
(* eapply scheduled_implies_pending in PENDING; eauto with basic_facts. *)
(* apply/andP; split; last by apply leq_ltn_trans with (n := t); first by move: PENDING => /andP [ARR _]. *)
(* apply contraT; rewrite -ltnNge; intro LT; exfalso. *)
(* feed (QUIET jhp); first by eapply H_jobs_come_from_arrival_sequence, Sched_jhp. *)
(* specialize (QUIET HP LT). *)
(* have COMP: job_completed_by jhp t. *)
(* { by apply completion_monotonic with (t0 := t1); [ apply leq_trans with tp | ]. } *)
(* apply completed_implies_not_scheduled in COMP; eauto with basic_facts. *)
(* by move : COMP => /negP COMP; apply : COMP. *)
(* Qed. *)
by apply/andP; split; first apply leq_trans with tp. }
exists jhp.
have HP: hep_job jhp j.
{ intros.
move:(H_valid_model_with_bounded_nonpreemptive_segments) => [PREE ?].
specialize (scheduling_of_any_segment_starts_with_preemption_time arr_seq sched H_sched_valid PREE jhp t Sched_jhp) => SOAS.
move: SOAS => [prt [/andP [_ LE] [PR SCH]]].
case E:(t1 <= prt).
- move: E => /eqP /eqP E; rewrite subn_eq0 in E.
edestruct not_quiet_implies_exists_scheduled_hp_job_at_preemption_point as [jlp [_ [HEP SCHEDjhp]]]; eauto 2.
{ by apply /andP; split; last by apply leq_ltn_trans with t. }
enough (EQ : jhp = jlp); first by subst.
eapply ideal_proc_model_is_a_uniprocessor_model with (t0 := prt); eauto;
by apply SCH; apply/andP; split.
- move: E => /eqP /neqP E; rewrite -lt0n subn_gt0 in E.
apply negbNE; apply/negP; intros LP; rename jhp into jlp.
edestruct not_quiet_implies_exists_scheduled_hp_job_at_preemption_point
as [jhp [_ [HEP SCHEDjhp]]]; [ | apply PRPOINT| ]; first by apply/andP; split.
move: LP => /negP LP; apply: LP.
enough (EQ : jhp = jlp); first by subst.
eapply ideal_proc_model_is_a_uniprocessor_model with (j1 := jhp) (t0 := tp); eauto.
by apply SCH; apply/andP; split; first apply leq_trans with t1; auto.
}
repeat split; try done.
move: (H_busy_interval_prefix) => [SL [QUIET [NOTQUIET EXj]]]; move: (Sched_jhp) => PENDING.
eapply scheduled_implies_pending in PENDING; eauto with basic_facts.
apply/andP; split; last by apply leq_ltn_trans with (n := t); first by move: PENDING => /andP [ARR _].
apply contraT; rewrite -ltnNge; intro LT; exfalso.
feed (QUIET jhp); first by eapply H_jobs_come_from_arrival_sequence, Sched_jhp.
specialize (QUIET HP LT).
have COMP: job_completed_by jhp t.
{ by apply completion_monotonic with (t0 := t1); [ apply leq_trans with tp | ]. }
apply completed_implies_not_scheduled in COMP; eauto with basic_facts.
by move : COMP => /negP COMP; apply : COMP.
Qed.
(** Now, suppose there exists some constant K that bounds the distance to
a preemption time from the beginning of the busy interval. *)
......
analysis/facts/readiness/sequential.v
View file @ d5871c8f
......@@ -65,11 +65,10 @@ Section SequentialTasksReadiness.
intros j1 j2 t ARR1 ARR2 SAME LT SCHED.
destruct (boolP (job_ready sched j2 t)) as [READY | NREADY].
- move: READY => /andP [PEND /allP ALL]; apply: ALL.
Admitted.
(* rewrite mem_filter; apply/andP; split; first by done. *)
(* by apply arrived_between_implies_in_arrivals => //. *)
(* - by apply H_valid_schedule in SCHED; rewrite SCHED in NREADY. *)
(* Qed. *)
rewrite in_fsetE inE -/(same_task j1 j2) SAME andbT.
exact: arrived_between_implies_in_arrivals.
- by apply H_valid_schedule in SCHED; rewrite SCHED in NREADY.
Qed.
(* Finally, we show that the sequential readiness model is a
work-bearing readiness model. That is, if a job [j] is pending
......
model/task/arrival/arrival_curve_to_rbf.v
View file @ d5871c8f
From mathcomp Require Import ssreflect ssrnat finmap.
Require Export prosa.util.all.
Require Export prosa.model.task.arrival.request_bound_functions.
Require Export prosa.model.task.arrival.curves.
......@@ -88,13 +89,11 @@ Section ArrivalCurveToRBF.
move=> TASK_COST RESPECT t1 t2 LEQ.
specialize (RESPECT t1 t2 LEQ).
apply leq_trans with (n := task_cost tsk * number_of_task_arrivals arr_seq tsk t1 t2) => //.
- rewrite /max_arrivals /number_of_task_arrivals -sum1_size big_distrr //= muln1 leq_sum_seq // => j.
Admitted.
(* rewrite mem_filter => /andP [/eqP TSK _] _. *)
(* rewrite -TSK. *)
(* by apply TASK_COST. *)
(* - by destruct (task_cost tsk) eqn:C; rewrite /task_max_rbf C // leq_pmul2l. *)
(* Qed. *)
- rewrite /number_of_task_arrivals.
rewrite -sum1_size big_distrr/= muln1 leq_sum_seq// => j.
rewrite in_fsetE inE => /andP[_ /eqP<- _]; exact: TASK_COST.
- by destruct (task_cost tsk) eqn:C; rewrite /task_max_rbf C // leq_pmul2l.
Qed.
(** Finally, we prove that the task respects the request-bound function also in
the lower-bounding case. This time, we assume that the cost of tasks lower-bounds
......@@ -108,12 +107,10 @@ Section ArrivalCurveToRBF.
specialize (RESPECT t1 t2 LEQ).
apply leq_trans with (n := task_min_cost tsk * number_of_task_arrivals arr_seq tsk t1 t2) => //.
- by destruct (task_min_cost tsk) eqn:C; rewrite /task_min_rbf C // leq_pmul2l.
- rewrite /min_arrivals /number_of_task_arrivals -sum1_size big_distrr //= muln1 leq_sum_seq // => j.
Admitted.
(* rewrite mem_filter => /andP [/eqP TSK _] _. *)
(* rewrite -TSK. *)
(* by apply TASK_COST. *)
(* Qed. *)
- rewrite /number_of_task_arrivals.
rewrite -sum1_size big_distrr/= muln1 leq_sum_seq// => j.
rewrite in_fsetE inE => /andP[_ /eqP<- _]; exact: TASK_COST.
Qed.
End SingleTask.
......
model/task/arrivals.v
View file @ d5871c8f
......@@ -42,7 +42,7 @@ Section TaskArrivals.
(** ... and finally count the number of job arrivals. *)
Definition number_of_task_arrivals (t1 t2 : instant) :=
size (task_arrivals_between t1 t2).
#|`task_arrivals_between t1 t2|.
(** ... and also count the cost of job arrivals. *)
Definition cost_of_task_arrivals (t1 t2 : instant) :=
......
results/edf/rta/bounded_nps.v
View file @ d5871c8f
......@@ -167,32 +167,30 @@ Section RTAforEDFwithBoundedNonpreemptiveSegmentsWithArrivalCurves.
intros j' JINB NOTHEP.
apply leq_bigmax_cond_seq with (x := (job_task j')) (F := fun tsk => task_max_nonpreemptive_segment tsk - 1).
{ apply H_all_jobs_from_taskset.
Admitted.
(* apply mem_bigcat_nat_exists in JINB. *)
(* by inversion JINB as [ta' [JIN' _]]; exists ta'. } *)
(* { have NINTSK: job_task j' != tsk. *)
(* { apply/eqP; intros TSKj'. *)
(* rewrite /EDF -ltnNge in NOTHEP. *)
(* rewrite /job_deadline /absolute_deadline.job_deadline_from_task_deadline in NOTHEP. *)
(* rewrite TSKj' TSK ltn_add2r in NOTHEP. *)
(* move: NOTHEP; rewrite ltnNge; move => /negP T; apply: T. *)
(* apply leq_trans with t; last by done. *)
(* eapply in_arrivals_implies_arrived_between in JINB; last by eauto 2. *)
(* move: JINB; move => /andP [_ T]. *)
(* by apply ltnW. *)
(* } *)
(* apply/andP; split; first by done. *)
(* rewrite /EDF -ltnNge in NOTHEP. *)
(* rewrite -TSK. *)
(* have ARRLE: job_arrival j' < job_arrival j. *)
(* { apply leq_trans with t; last by done. *)
(* eapply in_arrivals_implies_arrived_between in JINB; last by eauto 2. *)
(* by move: JINB; move => /andP [_ T]. *)
(* } *)
(* rewrite /job_deadline /absolute_deadline.job_deadline_from_task_deadline in NOTHEP. *)
(* rewrite /D; ssrlia. *)
(* } *)
(* Qed. *)
by move: JINB => /bigfcup_natP[ta' _ JIN']; exists ta'. }
{ have NINTSK: job_task j' != tsk.
{ apply/eqP; intros TSKj'.
rewrite /EDF -ltnNge in NOTHEP.
rewrite /job_deadline /absolute_deadline.job_deadline_from_task_deadline in NOTHEP.
rewrite TSKj' TSK ltn_add2r in NOTHEP.
move: NOTHEP; rewrite ltnNge; move => /negP T; apply: T.
apply leq_trans with t; last by done.
eapply in_arrivals_implies_arrived_between in JINB; last by eauto 2.
move: JINB; move => /andP [_ T].
by apply ltnW.
}
apply/andP; split; first by done.
rewrite /EDF -ltnNge in NOTHEP.
rewrite -TSK.
have ARRLE: job_arrival j' < job_arrival j.
{ apply leq_trans with t; last by done.
eapply in_arrivals_implies_arrived_between in JINB; last by eauto 2.
by move: JINB; move => /andP [_ T].
}
rewrite /job_deadline /absolute_deadline.job_deadline_from_task_deadline in NOTHEP.
rewrite /D; ssrlia.
}
Qed.
(** Using the lemma above, we prove that the priority inversion of the task is bounded by
the maximum length of a nonpreemptive section of lower-priority tasks. *)
......
results/edf/rta/bounded_pi.v
View file @ d5871c8f
......@@ -228,27 +228,26 @@ Section AbstractRTAforEDFwithArrivalCurves.
{ exfalso; clear HYP1 HYP2.
eapply instantiated_busy_interval_equivalent_busy_interval in BUSY; eauto 2 with basic_facts.
move: BUSY => [PREF _].
Admitted.
(* by eapply not_quiet_implies_not_idle; eauto 2 with basic_facts. } *)
(* { clear EqSched_jo; move: Sched_jo; rewrite scheduled_at_def; move => /eqP EqSched_jo. *)
(* rewrite EqSched_jo in HYP1, HYP2. *)
(* move: HYP1 HYP2. *)
(* rewrite Bool.negb_involutive negb_and. *)
(* move => HYP1 /orP [/negP HYP2| /eqP HYP2]. *)
(* - by exfalso. *)
(* - rewrite Bool.negb_involutive in HYP2. *)
(* move: HYP2 => /eqP /eqP HYP2. *)
(* by subst jo; rewrite scheduled_at_def EqSched_jo. *)
(* } *)
(* } *)
(* { apply/negP; *)
(* rewrite /interference /ideal_jlfp_rta.interference /is_priority_inversion *)
(* /is_interference_from_another_hep_job *)
(* HYP negb_or; apply/andP; split. *)
(* - by rewrite Bool.negb_involutive; eapply (EDF_is_reflexive 0). *)
(* - by rewrite negb_and Bool.negb_involutive; apply/orP; right. *)
(* } *)
(* Qed. *)
by eapply not_quiet_implies_not_idle; eauto 2 with basic_facts. }
{ clear EqSched_jo; move: Sched_jo; rewrite scheduled_at_def; move => /eqP EqSched_jo.
rewrite EqSched_jo in HYP1, HYP2.
move: HYP1 HYP2.
rewrite Bool.negb_involutive negb_and.
move => HYP1 /orP [/negP HYP2| /eqP HYP2].
- by exfalso.
- rewrite Bool.negb_involutive in HYP2.
move: HYP2 => /eqP /eqP HYP2.
by subst jo; rewrite scheduled_at_def EqSched_jo.
}
}
{ apply/negP;
rewrite /interference /ideal_jlfp_rta.interference /is_priority_inversion
/is_interference_from_another_hep_job
HYP negb_or; apply/andP; split.
- by rewrite Bool.negb_involutive; eapply (EDF_is_reflexive 0).
- by rewrite negb_and Bool.negb_involutive; apply/orP; right.
}
Qed.
(** Next, we prove that the interference and interfering workload
functions are consistent with sequential tasks. *)
......
results/fixed_priority/rta/bounded_nps.v
View file @ d5871c8f
......@@ -146,18 +146,16 @@ Section RTAforFPwithBoundedNonpreemptiveSegmentsWithArrivalCurves.
intros j' JINB NOTHEP.
rewrite leq_sub2r //.
apply H_valid_model_with_bounded_nonpreemptive_segments.
Admitted.
(* by eapply in_arrivals_implies_arrived; eauto 2. *)
(* } *)
(* { apply /bigmax_leq_seqP. *)
(* intros j' JINB NOTHEP. *)
(* apply leq_bigmax_cond_seq with *)
(* (x := (job_task j')) (F := fun tsk => task_max_nonpreemptive_segment tsk - 1); last by done. *)
(* apply H_all_jobs_from_taskset. *)
(* apply mem_bigcat_nat_exists in JINB. *)
(* by inversion JINB as [ta' [JIN' _]]; exists ta'. *)
(* } *)
(* Qed. *)
exact: in_arrivals_implies_arrived JINB.
}
{ apply /bigmax_leq_seqP.
intros j' JINB NOTHEP.
apply leq_bigmax_cond_seq with
(x := (job_task j')) (F := fun tsk => task_max_nonpreemptive_segment tsk - 1); last by done.
apply H_all_jobs_from_taskset.
by have /bigfcup_natP[i _ {}JINB] := JINB; exists i.
}
Qed.
(** Using the above lemma, we prove that the priority inversion of the task is bounded by blocking_bound. *)
Lemma priority_inversion_is_bounded:
......@@ -175,37 +173,36 @@ Section RTAforFPwithBoundedNonpreemptiveSegmentsWithArrivalCurves.
}
move: NEQ => /negP /negP; rewrite -ltnNge; move => BOUND.
edestruct (@preemption_time_exists) as [ppt [PPT NEQ]]; eauto 2 with basic_facts.
Admitted.
(* move: NEQ => /andP [GE LE]. *)
(* apply leq_trans with (cumulative_priority_inversion sched j t1 ppt); *)
(* last apply leq_trans with (ppt - t1); first last. *)
(* - rewrite leq_subLR. *)
(* apply leq_trans with (t1 + max_length_of_priority_inversion j t1); first by done. *)
(* by rewrite leq_add2l; eapply priority_inversion_is_bounded_by_blocking; eauto 2. *)
(* - rewrite /cumulative_priority_inversion /is_priority_inversion. *)
(* rewrite -[X in _ <= X]addn0 -[ppt - t1]mul1n -iter_addn -big_const_nat. *)
(* rewrite leq_sum //; intros t _; case: (sched t); last by done. *)
(* by intros s; case: (hep_job s j). *)
(* - rewrite /cumulative_priority_inversion /is_priority_inversion. *)
(* rewrite (@big_cat_nat _ _ _ ppt) //=; last first. *)
(* { rewrite ltn_subRL in BOUND. *)
(* apply leq_trans with (t1 + blocking_bound); last by apply ltnW. *)
(* apply leq_trans with (t1 + max_length_of_priority_inversion j t1); first by done. *)
(* rewrite leq_add2l; eapply priority_inversion_is_bounded_by_blocking; eauto 2. *)
(* } *)
(* rewrite -[X in _ <= X]addn0 leq_add2l leqn0. *)
(* rewrite big_nat_cond big1 //; move => t /andP [/andP [GEt LTt] _ ]. *)
(* case SCHED: (sched t) => [s | ]; last by done. *)
(* edestruct (@not_quiet_implies_exists_scheduled_hp_job) *)
(* with (K := ppt - t1) (t1 := t1) (t2 := t2) (t := t) *)
(* as [j_hp [ARRB [HP SCHEDHP]]]; eauto 2 with basic_facts. *)
(* { by exists ppt; split; [done | rewrite subnKC //; apply/andP]. } *)
(* { by rewrite subnKC //; apply/andP; split. } *)
(* apply/eqP; rewrite eqb0 Bool.negb_involutive. *)
(* enough (EQef : s = j_hp); first by subst;auto. *)
(* eapply ideal_proc_model_is_a_uniprocessor_model; eauto 2. *)
(* by rewrite scheduled_at_def SCHED. *)
(* Qed. *)
move: NEQ => /andP [GE LE].
apply leq_trans with (cumulative_priority_inversion sched j t1 ppt);
last apply leq_trans with (ppt - t1); first last.
- rewrite leq_subLR.
apply leq_trans with (t1 + max_length_of_priority_inversion j t1); first by done.
by rewrite leq_add2l; eapply priority_inversion_is_bounded_by_blocking; eauto 2.
- rewrite /cumulative_priority_inversion /is_priority_inversion.
rewrite -[X in _ <= X]addn0 -[ppt - t1]mul1n -iter_addn -big_const_nat.
rewrite leq_sum //; intros t _; case: (sched t); last by done.
by intros s; case: (hep_job s j).
- rewrite /cumulative_priority_inversion /is_priority_inversion.
rewrite (@big_cat_nat _ _ _ ppt) //=; last first.
{ rewrite ltn_subRL in BOUND.
apply leq_trans with (t1 + blocking_bound); last by apply ltnW.
apply leq_trans with (t1 + max_length_of_priority_inversion j t1); first by done.
rewrite leq_add2l; eapply priority_inversion_is_bounded_by_blocking; eauto 2.
}
rewrite -[X in _ <= X]addn0 leq_add2l leqn0.
rewrite big_nat_cond big1 //; move => t /andP [/andP [GEt LTt] _ ].
case SCHED: (sched t) => [s | ]; last by done.
edestruct (@not_quiet_implies_exists_scheduled_hp_job)
with (K := ppt - t1) (t1 := t1) (t2 := t2) (t := t)
as [j_hp [ARRB [HP SCHEDHP]]]; eauto 2 with basic_facts.
{ by exists ppt; split; [done | rewrite subnKC //; apply/andP]. }
{ by rewrite subnKC //; apply/andP; split. }
apply/eqP; rewrite eqb0 Bool.negb_involutive.
enough (EQef : s = j_hp); first by subst;auto.
eapply ideal_proc_model_is_a_uniprocessor_model; eauto 2.
by rewrite scheduled_at_def SCHED.
Qed.
End PriorityInversionIsBounded.
......
results/fixed_priority/rta/floating_nonpreemptive.v
View file @ d5871c8f
......@@ -150,12 +150,11 @@ Section RTAforFloatingModelwithArrivalCurves.
eapply uniprocessor_response_time_bound_fp_with_bounded_nonpreemptive_segments.
all: eauto 2 with basic_facts.
- by apply sequential_readiness_implies_work_bearing_readiness.
Admitted.
(* - by apply sequential_readiness_implies_sequential_tasks. *)
(* - intros A SP. *)
(* rewrite subnn subn0. *)
(* destruct (H_R_is_maximum _ SP) as [F [EQ LE]]. *)
(* by exists F; rewrite addn0; split. *)
(* Qed. *)
- by apply sequential_readiness_implies_sequential_tasks.
- intros A SP.
rewrite subnn subn0.
destruct (H_R_is_maximum _ SP) as [F [EQ LE]].
by exists F; rewrite addn0; split.
Qed.
End RTAforFloatingModelwithArrivalCurves.
results/fixed_priority/rta/fully_nonpreemptive.v
View file @ d5871c8f
......@@ -152,8 +152,7 @@ Section RTAforFullyNonPreemptiveFPModelwithArrivalCurves.
(L0 := L).
all: eauto 3 with basic_facts.
- by apply sequential_readiness_implies_work_bearing_readiness.
Admitted.
(* - by apply sequential_readiness_implies_sequential_tasks. *)
(* Qed. *)
- by apply sequential_readiness_implies_sequential_tasks.
Qed.
End RTAforFullyNonPreemptiveFPModelwithArrivalCurves.
results/fixed_priority/rta/fully_preemptive.v
View file @ d5871c8f
......@@ -139,15 +139,14 @@ Section RTAforFullyPreemptiveFPModelwithArrivalCurves.
all: eauto 2 with basic_facts.
rewrite /work_bearing_readiness.
- by apply sequential_readiness_implies_work_bearing_readiness.
Admitted.
(* - by apply sequential_readiness_implies_sequential_tasks => //. *)
(* - by rewrite BLOCK add0n. *)
(* - move => A /andP [LT NEQ]. *)
(* edestruct H_R_is_maximum as [F [FIX BOUND]]. *)
(* { by apply/andP; split; eauto 2. } *)
(* exists F; split. *)
(* + by rewrite BLOCK add0n subnn subn0. *)
(* + by rewrite subnn addn0. *)
(* Qed. *)
- by apply sequential_readiness_implies_sequential_tasks => //.
- by rewrite BLOCK add0n.
- move => A /andP [LT NEQ].
edestruct H_R_is_maximum as [F [FIX BOUND]].
{ by apply/andP; split; eauto 2. }
exists F; split.
+ by rewrite BLOCK add0n subnn subn0.
+ by rewrite subnn addn0.
Qed.
End RTAforFullyPreemptiveFPModelwithArrivalCurves.
results/fixed_priority/rta/limited_preemptive.v
View file @ d5871c8f
......@@ -158,24 +158,23 @@ Section RTAforFixedPreemptionPointsModelwithArrivalCurves.
with (L0 := L).
all: eauto 2 with basic_facts.
- by apply sequential_readiness_implies_work_bearing_readiness.
Admitted.
(* - by apply sequential_readiness_implies_sequential_tasks. *)
(* - intros A SP. *)
(* destruct (H_R_is_maximum _ SP) as[FF [EQ1 EQ2]]. *)
(* exists FF; rewrite subKn; first by done. *)
(* rewrite /task_last_nonpr_segment -(leq_add2r 1) subn1 !addn1 prednK; last first. *)
(* + rewrite /last0 -nth_last. *)
(* apply HYP3; try by done. *)
(* rewrite -(ltn_add2r 1) !addn1 prednK //. *)
(* move: (number_of_preemption_points_in_task_at_least_two *)
(* _ _ H_valid_model_with_fixed_preemption_points _ H_tsk_in_ts POSt) => Fact2. *)
(* move: (Fact2) => Fact3. *)
(* by rewrite size_of_seq_of_distances // addn1 ltnS // in Fact2. *)
(* + apply leq_trans with (task_max_nonpreemptive_segment tsk). *)
(* * by apply last_of_seq_le_max_of_seq. *)
(* * rewrite -END; last by done. *)
(* apply ltnW; rewrite ltnS; try done. *)
(* by apply max_distance_in_seq_le_last_element_of_seq; eauto 2. *)
(* Qed. *)
- by apply sequential_readiness_implies_sequential_tasks.
- intros A SP.
destruct (H_R_is_maximum _ SP) as[FF [EQ1 EQ2]].
exis