def preprocess_ts(taskset, clusts, oheads):
for clust in clusts:
charge_spinlock_overheads(oheads, clust)
for task in clust:
#Initially assume completion by deadline and use G-FL
task.response_time = task.deadline
task.prio_pt = task.deadline - \
(clust.cpus - 1) / (clust.cpus) * task.cost
assign_prio_pt_preemption_levels(taskset)
def preprocess_ts(taskset, clusts, oheads):
for clust in clusts:
charge_spinlock_overheads(oheads, clust)
for task in clust:
#Initially assume completion by deadline and use G-FL
task.response_time = task.deadline
task.prio_pt = task.deadline - \
(clust.cpus - 1) / (clust.cpus) * task.cost
assign_prio_pt_preemption_levels(taskset)
def test_spinlock(self):
self.oheads()
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts), self.ts)
self.unchanged_period()
self.unchanged_deadline()
self.not_lossy()
scost = 17 + 19
rcost = 7 + 11
wcost = 3 + 5
self.assertEqual(self.ts[0].cost, 10000 + 2 * wcost + 4 * rcost + 6 * scost)
self.assertEqual(self.ts[1].cost, 5000 + 3 * wcost + 1 * rcost + 4 * scost)
self.assertEqual(self.ts[0].resmodel[0].max_read_length, 0)
self.assertEqual(self.ts[0].resmodel[0].max_write_length, 11 + wcost)
self.assertEqual(self.ts[1].resmodel[0].max_read_length, 0)
self.assertEqual(self.ts[1].resmodel[0].max_write_length, 17 + wcost)
self.assertEqual(self.ts[0].resmodel[1].max_read_length, 11 + rcost)
self.assertEqual(self.ts[0].resmodel[1].max_write_length, 0)
self.assertEqual(self.ts[1].resmodel[1].max_read_length, 17 + rcost)
self.assertEqual(self.ts[1].resmodel[1].max_write_length, 0)
self.assertEqual(self.ts[0].resmodel[2].max_read_length, 11 + rcost)
self.assertEqual(self.ts[0].resmodel[2].max_write_length, 0)
self.assertEqual(self.ts[1].resmodel[2].max_read_length, 0)
self.assertEqual(self.ts[1].resmodel[2].max_write_length, 17 + wcost)
def test_spinlock_zero(self):
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts), self.ts)
self.unchanged_period()
self.unchanged_deadline()
self.unchanged_cost()
self.not_lossy()
self.unchanged_resmodel()
def test_spinlock(self):
self.oheads()
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts),
self.ts)
self.unchanged_period()
self.unchanged_deadline()
self.not_lossy()
scost = 17 + 19
rcost = 7 + 11
wcost = 3 + 5
self.assertEqual(self.ts[0].cost,
10000 + 2 * wcost + 4 * rcost + 6 * scost)
self.assertEqual(self.ts[1].cost,
5000 + 3 * wcost + 1 * rcost + 4 * scost)
self.assertEqual(self.ts[0].resmodel[0].max_read_length, 0)
self.assertEqual(self.ts[0].resmodel[0].max_write_length, 11 + wcost)
self.assertEqual(self.ts[1].resmodel[0].max_read_length, 0)
self.assertEqual(self.ts[1].resmodel[0].max_write_length, 17 + wcost)
self.assertEqual(self.ts[0].resmodel[1].max_read_length, 11 + rcost)
self.assertEqual(self.ts[0].resmodel[1].max_write_length, 0)
self.assertEqual(self.ts[1].resmodel[1].max_read_length, 17 + rcost)
self.assertEqual(self.ts[1].resmodel[1].max_write_length, 0)
self.assertEqual(self.ts[0].resmodel[2].max_read_length, 11 + rcost)
self.assertEqual(self.ts[0].resmodel[2].max_write_length, 0)
self.assertEqual(self.ts[1].resmodel[2].max_read_length, 0)
self.assertEqual(self.ts[1].resmodel[2].max_write_length, 17 + wcost)
def test_spinlock_zero(self):
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts),
self.ts)
self.unchanged_period()
self.unchanged_deadline()
self.unchanged_cost()
self.not_lossy()
self.unchanged_resmodel()
def test_spinlock_integral(self):
self.o.lock = const(1.75)
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts), self.ts)
self.assertEqual(self.ts[0].resmodel[0].max_write_length, 11 + 2)
def test_spinlock_infeasible(self):
self.o.syscall_in = const(10000000)
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts), False)
def test_spinlock_integral(self):
self.o.lock = const(1.75)
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts),
self.ts)
self.assertEqual(self.ts[0].resmodel[0].max_write_length, 11 + 2)
def test_spinlock_infeasible(self):
self.o.syscall_in = const(10000000)
self.assertIs(locking.charge_spinlock_overheads(self.o, self.ts),
False)