[so] [Tema 4] [Linux] Nelamurire testul 12, exec preemption

[Paul Olaru]

Testul 12 rulează funcțiile cu _13?

Avem 2 threaduri de aceeași prioritate.

Ordinea de rulare:
-> handler_13_1 (priority 0): so_fork, creates handler_13_2 of priority 0. Priority is not higher so no preemption. Will count towards the time quantum as it didn’t trigger a preemption.
-> handler_13_1: so_exec on line 101 (time quantum expires, preemption)
-> handler_13_2: so_exec on line 79 (okay)
-> handler_13_2: so_exec on line 81 (time quantum expires, preemption)
-> handler_13_1: so_exec on line 103 (okay)
-> handler_13_1: so_exec on line 105 (time quantum expires, preemption)
-> handler_13_2: so_exec on line 83 (okay)
-> handler_13_2: so_exec on line 85 (time quantum expires, preemption)
-> handler_13_1: so_exec on line 107 (okay)
-> line 111: handler_13_1 finishes, so handler_13_2 will continue running
-> handler_13_2: so_exec on line 87 (okay)
-> line 89: handler_13_2 finishes, so_end on line 125 may now continue.

Line numbers in checker-lin/_test/test_exec.c

Sent from Mail for Windows 10

From: Alexandru Fazakas
Sent: Wednesday, May 8, 2019 6:24 PM
To: Paul Olaru
Cc: Sisteme de Operare
Subject: Re: [so] [Tema 4] [Linux] Nelamurire testul 12, exec preemption

Salut,

Nu va mai fi un thread care executa "test_sched_handler_13_2", din moment ce primul handler face 
so_fork pe el la inceput?
Alex

On Wed, May 8, 2019 at 6:23 PM Paul Olaru <olarupaulstelian97 at gmail.com> wrote:
Nefiind alt thread ar trebui să își poată termina treaba -- tot el să continue execuția.
On Wed, May 8, 2019, 6:21 PM Alexandru Fazakas via so <so at cursuri.cs.pub.ro> wrote:
Salut,
Care ar trebui sa fie mai exact comportamentul testului 12, "test exec preemption"?
Mie imi esueaza cu "ERR: invalid tasks order" desi tot ce se intampla este ca
test_sched_handler_13_1 ruleaza 2 instructiuni.
Nu acesta ar trebui sa fie executat primul?

Mersi,
Alex
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