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Commit
b2352129
authored
Jun 09, 2021
by
Michael Schmid
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added Faults and minor changes
parent
9aed003b
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14 changed files
with
304 additions
and
46 deletions
+304
-46
misc/script_proba.py
+58
-0
script.py
+11
-8
script_proba.py
+1
-1
simso/configuration/Configuration.py
+12
-1
simso/configuration/parser.py
+28
-20
simso/core/Fault.py
+160
-0
simso/core/Job.py
+1
-8
simso/core/Model.py
+6
-0
simso/core/Processor.py
+13
-1
simso/core/Scheduler.py
+3
-3
simso/core/Timer.py
+0
-1
simso/core/etm/WCET.py
+1
-0
simso/core/results.py
+6
-1
simso/schedulers/EDF.py
+4
-2
No files found.
misc/script_proba.py
0 → 100644
View file @
b2352129
#!/usr/bin/python3
"""
Example of a script that uses SimSo.
"""
import
sys
from
simso.core
import
Model
from
simso.configuration
import
Configuration
def
main
(
argv
):
if
len
(
argv
)
==
2
:
# Configuration load from a file.
configuration
=
Configuration
(
argv
[
1
])
else
:
# Manual configuration:
configuration
=
Configuration
()
configuration
.
cycles_per_ms
=
1
configuration
.
etm
=
"pwcet"
configuration
.
duration
=
100
*
configuration
.
cycles_per_ms
# Add tasks:
configuration
.
add_task
(
name
=
"T1"
,
identifier
=
1
,
activation_date
=
0
,
pwcet
=
[(
2
,
0.5
),
(
4
,
0.5
)],
pmit
=
[(
5
,
0.2
),
(
6
,
0.8
)],
deadline
=
5
,
task_type
=
"Probabilistic"
,
abort_on_miss
=
True
)
configuration
.
add_task
(
name
=
"T2"
,
identifier
=
2
,
activation_date
=
0
,
pwcet
=
[(
3
,
0.5
),
(
4
,
0.5
)],
pmit
=
[(
7
,
0.5
),
(
8
,
0.5
)],
deadline
=
7
,
task_type
=
"Probabilistic"
,
abort_on_miss
=
True
)
configuration
.
add_task
(
name
=
"T3"
,
identifier
=
3
,
activation_date
=
0
,
pwcet
=
[(
3
,
0.5
),
(
4
,
0.5
)],
pmit
=
[(
8
,
0.5
),
(
9
,
0.5
)],
deadline
=
8
,
task_type
=
"Probabilistic"
,
abort_on_miss
=
True
)
# Add a processor:
configuration
.
add_processor
(
name
=
"CPU 1"
,
identifier
=
1
)
# configuration.add_processor(name="CPU 2", identifier=2)
# Add a scheduler:
# configuration.scheduler_info.filename = "./simso/schedulers/RM.py"
configuration
.
scheduler_info
.
clas
=
"simso.schedulers.RM"
# Check the config before trying to run it.
configuration
.
check_all
()
# Init a model from the configuration.
model
=
Model
(
configuration
)
# Execute the simulation.
model
.
run_model
()
# Print logs.
for
log
in
model
.
logs
:
print
(
log
)
main
(
sys
.
argv
)
script.py
View file @
b2352129
...
...
@@ -6,6 +6,7 @@ Example of a script that uses SimSo.
import
sys
from
simso.core
import
Model
from
simso.core.Fault
import
ProcessorFailure
,
VoltageDrop
,
PriorityInversion
,
TimingError
from
simso.configuration
import
Configuration
...
...
@@ -22,22 +23,24 @@ def main(argv):
configuration
.
duration
=
100
*
configuration
.
cycles_per_ms
# Add tasks:
configuration
.
add_task
(
name
=
"T1"
,
identifier
=
1
,
period
=
7
,
activation_date
=
0
,
wcet
=
3
,
deadline
=
7
)
configuration
.
add_task
(
name
=
"T1"
,
identifier
=
1
,
period
=
8
,
activation_date
=
0
,
wcet
=
4
,
deadline
=
7
)
configuration
.
add_task
(
name
=
"T2"
,
identifier
=
2
,
period
=
12
,
activation_date
=
0
,
wcet
=
3
,
deadline
=
8
)
configuration
.
add_task
(
name
=
"T
4"
,
identifier
=
4
,
period
=
15
,
configuration
.
add_task
(
name
=
"T
3"
,
identifier
=
3
,
period
=
15
,
activation_date
=
0
,
wcet
=
5
,
deadline
=
14
)
configuration
.
add_task
(
name
=
"T3"
,
identifier
=
3
,
period
=
20
,
activation_date
=
0
,
wcet
=
5
,
deadline
=
9
)
task
=
configuration
.
add_task
(
name
=
"T4"
,
identifier
=
4
,
period
=
20
,
activation_date
=
0
,
wcet
=
6
,
deadline
=
12
)
# Add a processor:
configuration
.
add_processor
(
name
=
"CPU 1"
,
identifier
=
1
,
cs_overhead
=
1
)
configuration
.
add_processor
(
name
=
"CPU 2"
,
identifier
=
2
,
cs_overhead
=
1
)
configuration
.
add_processor
(
name
=
"CPU 1"
,
identifier
=
1
)
proc
=
configuration
.
add_processor
(
name
=
"CPU 2"
,
identifier
=
2
)
configuration
.
add_fault
(
TimingError
(
task
,
"period"
,
8
),
0
,
21
)
# Add a scheduler:
#configuration.scheduler_info.filename = "../simso/schedulers/RM.py"
configuration
.
scheduler_info
.
clas
=
"simso.schedulers.
RM
"
configuration
.
scheduler_info
.
clas
=
"simso.schedulers.
EDF
"
# Check the config before trying to run it.
configuration
.
check_all
()
...
...
script_proba.py
View file @
b2352129
...
...
@@ -35,7 +35,7 @@ def main(argv):
# Add a processor:
configuration
.
add_processor
(
name
=
"CPU 1"
,
identifier
=
1
)
configuration
.
add_processor
(
name
=
"CPU 2"
,
identifier
=
2
)
#
configuration.add_processor(name="CPU 2", identifier=2)
# Add a scheduler:
configuration
.
scheduler_info
.
filename
=
"./simso/schedulers/RM.py"
...
...
simso/configuration/Configuration.py
View file @
b2352129
...
...
@@ -4,10 +4,12 @@
import
os
import
re
from
xml.dom
import
minidom
from
functools
import
reduce
from
simso.core.Scheduler
import
SchedulerInfo
from
simso.core
import
Scheduler
from
simso.core.Task
import
TaskInfo
from
simso.core.Processor
import
ProcInfo
from
simso.core.Fault
import
FaultInfo
,
FaultFunction
from
simso.generator.task_generator
import
gen_probabilistic_arrivals
from
simso.generator.task_generator
import
cdf
...
...
@@ -22,7 +24,7 @@ if not hasattr(minidom.NamedNodeMap, '__contains__'):
def
_gcd
(
*
numbers
):
"""Return the greatest common divisor of the given integers"""
from
fractions
import
gcd
from
math
import
gcd
return
reduce
(
gcd
,
numbers
)
...
...
@@ -60,6 +62,7 @@ class Configuration(object):
self
.
_scheduler_info
=
parser
.
scheduler_info
self
.
penalty_preemption
=
parser
.
penalty_preemption
self
.
penalty_migration
=
parser
.
penalty_migration
self
.
fault_info_list
=
parser
.
fault_info_list
else
:
self
.
etm
=
"wcet"
self
.
duration
=
100000000
...
...
@@ -71,6 +74,7 @@ class Configuration(object):
self
.
task_data_fields
=
{}
self
.
_proc_info_list
=
[]
self
.
proc_data_fields
=
{}
self
.
fault_info_list
=
[]
self
.
memory_access_time
=
100
self
.
_scheduler_info
=
SchedulerInfo
()
self
.
calc_penalty_cache
()
...
...
@@ -315,3 +319,10 @@ class Configuration(object):
speed
)
self
.
proc_info_list
.
append
(
proc
)
return
proc
def
add_fault
(
self
,
fault_function
,
start_time
,
end_time
):
"""
Helper method to create a FaultInfo and add it to the list of faults.
"""
fault
=
FaultInfo
(
start_time
,
end_time
,
fault_function
)
self
.
fault_info_list
.
append
(
fault
)
simso/configuration/parser.py
View file @
b2352129
...
...
@@ -20,6 +20,7 @@ class Parser(object):
"""
Simulation file parser.
"""
def
__init__
(
self
,
filename
):
self
.
filename
=
filename
self
.
cur_dir
=
os
.
path
.
split
(
filename
)[
0
]
...
...
@@ -34,6 +35,11 @@ class Parser(object):
self
.
_parse_processors
()
self
.
_parse_scheduler
()
self
.
_parse_penalty
()
self
.
_parse_faults
()
def
_parse_faults
(
self
):
# TODO: implement parser for faults
self
.
fault_info_list
=
[]
def
_parse_caches
(
self
):
self
.
caches_list
=
[]
...
...
@@ -90,29 +96,31 @@ class Parser(object):
map
(
float
,
attr
[
'list_activation_dates'
]
.
value
.
split
(
','
)))
t
=
TaskInfo
(
attr
[
'name'
]
.
value
,
int
(
attr
[
'id'
]
.
value
),
task_type
,
'abort_on_miss'
not
in
attr
name
=
attr
[
'name'
]
.
value
,
i
dentifier
=
i
nt
(
attr
[
'id'
]
.
value
),
task_type
=
task_type
,
abort_on_miss
=
'abort_on_miss'
not
in
attr
or
attr
[
'abort_on_miss'
]
.
value
==
'yes'
,
float
(
attr
[
'period'
]
.
value
),
float
(
attr
[
'activationDate'
]
.
value
)
period
=
float
(
attr
[
'period'
]
.
value
),
activation_date
=
float
(
attr
[
'activationDate'
]
.
value
)
if
'activationDate'
in
attr
else
0
,
int
(
attr
[
'instructions'
]
.
value
),
float
(
attr
[
'mix'
]
.
value
),
(
self
.
cur_dir
+
'/'
+
attr
[
'stack'
]
.
value
,
self
.
cur_dir
)
if
'stack'
in
attr
else
(
""
,
self
.
cur_dir
),
float
(
attr
[
'WCET'
]
.
value
),
float
(
attr
[
'ACET'
]
.
value
)
if
'ACET'
in
attr
else
0
,
float
(
attr
[
'et_stddev'
]
.
value
)
if
'et_stddev'
in
attr
else
0
,
float
(
attr
[
'deadline'
]
.
value
),
float
(
attr
[
'base_cpi'
]
.
value
),
int
(
attr
[
'followed_by'
]
.
value
)
n_instr
=
int
(
attr
[
'instructions'
]
.
value
),
mix
=
float
(
attr
[
'mix'
]
.
value
),
stack_file
=
(
self
.
cur_dir
+
'/'
+
attr
[
'stack'
]
.
value
,
self
.
cur_dir
)
if
'stack'
in
attr
else
(
""
,
self
.
cur_dir
),
wcet
=
float
(
attr
[
'WCET'
]
.
value
),
acet
=
float
(
attr
[
'ACET'
]
.
value
)
if
'ACET'
in
attr
else
0
,
pwcet
=
float
(
attr
[
'PWCET'
]
.
value
)
if
'PWCET'
in
attr
else
0
,
et_stddev
=
float
(
attr
[
'et_stddev'
]
.
value
)
if
'et_stddev'
in
attr
else
0
,
deadline
=
float
(
attr
[
'deadline'
]
.
value
),
base_cpi
=
float
(
attr
[
'base_cpi'
]
.
value
),
followed_by
=
int
(
attr
[
'followed_by'
]
.
value
)
if
'followed_by'
in
attr
else
None
,
list_activation_dates
,
int
(
float
(
attr
[
'preemption_cost'
]
.
value
))
list_activation_dates
=
list_activation_dates
,
preemption_cost
=
int
(
float
(
attr
[
'preemption_cost'
]
.
value
))
if
'preemption_cost'
in
attr
else
0
,
data
)
data
=
data
)
self
.
task_info_list
.
append
(
t
)
def
_parse_processors
(
self
):
...
...
@@ -244,5 +252,5 @@ class Parser(object):
clas
=
clas
,
overhead
=
overhead
,
overhead_activate
=
overhead_activate
,
overhead_terminate
=
overhead_terminate
,
fields
=
data
)
if
filename
and
filename
[
0
]
!=
'/'
:
filename
=
self
.
cur_dir
+
'/'
+
filename
filename
=
self
.
cur_dir
+
'/'
+
filename
self
.
scheduler_info
.
filename
=
filename
simso/core/Fault.py
0 → 100644
View file @
b2352129
from
simpy
import
Environment
from
typing
import
Callable
from
simso.core.Processor
import
ProcInfo
class
FaultFunction
:
"""
The FaultFunction class changes the actual behaviour of the faulty element.
"""
def
__init__
(
self
,
start_function
:
Callable
,
end_function
:
Callable
):
self
.
start_function
=
start_function
self
.
end_function
=
end_function
class
FaultInfo
:
"""
The FaultType class is responsible for causing the error.
"""
def
__init__
(
self
,
start_time
:
float
,
end_time
:
float
,
fault_function
:
FaultFunction
):
self
.
start_time
=
start_time
self
.
end_time
=
end_time
self
.
fault_function
=
fault_function
class
Fault
:
"""
The Fault class is the simpy process for triggering a certain error.
"""
def
__init__
(
self
,
sim
,
fault_type
:
FaultInfo
):
self
.
_fault_type
=
fault_type
self
.
_sim
=
sim
self
.
process
=
self
.
_sim
.
process
(
self
.
release
())
def
release
(
self
):
yield
self
.
_sim
.
timeout
(
self
.
_fault_type
.
start_time
)
self
.
_fault_type
.
fault_function
.
start_function
(
self
.
_sim
)
yield
self
.
_sim
.
timeout
(
self
.
_fault_type
.
end_time
-
self
.
_fault_type
.
start_time
)
self
.
_fault_type
.
fault_function
.
end_function
(
self
.
_sim
)
class
ProcessorFailure
(
FaultFunction
):
"""
The ProcessorFailure class simulates a complete stoppage of a processor.
"""
def
__init__
(
self
,
proc_info
:
ProcInfo
):
super
()
.
__init__
(
self
.
stop_processor
,
self
.
start_processor
)
self
.
_proc_info
=
proc_info
self
.
_processor
=
None
def
stop_processor
(
self
,
model
):
self
.
_processor
=
next
(
p
for
p
in
model
.
processors
if
p
.
identifier
==
self
.
_proc_info
.
identifier
)
self
.
_processor
.
fail
(
self
)
def
start_processor
(
self
,
model
):
self
.
_processor
.
fail
()
class
VoltageChange
(
FaultFunction
):
def
__init__
(
self
,
proc_info_list
,
scaling
:
float
):
super
()
.
__init__
(
self
.
start_voltage_change
,
self
.
end_voltage_change
)
self
.
_proc_info_list
=
proc_info_list
self
.
_processor_list
=
[]
self
.
_scaling
=
scaling
def
start_voltage_change
(
self
,
model
):
affected_ids
=
[
p
.
identifier
for
p
in
self
.
_proc_info_list
]
self
.
_processor_list
=
[
p
for
p
in
model
.
processors
if
p
.
identifier
in
affected_ids
]
for
p
in
self
.
_processor_list
:
p
.
set_speed
(
self
.
_scaling
*
p
.
speed
)
def
end_voltage_change
(
self
,
model
):
for
p
in
self
.
_processor_list
:
speed
=
next
(
pi
for
pi
in
self
.
_proc_info_list
if
pi
.
identifier
==
p
.
identifier
)
.
speed
p
.
set_speed
(
speed
)
class
VoltageDrop
(
VoltageChange
):
"""
The VoltageDrop class simulates the slowdown of one or more processors due to voltage drops.
"""
def
__init__
(
self
,
proc_info_list
,
scaling
:
float
):
assert
scaling
>=
0
and
scaling
<=
1.0
,
"Voltage drop reduces the speed of a processor, i.e. scaling has to be >= 0 and <= 1"
super
()
.
__init__
(
proc_info_list
,
scaling
)
# TODO: rethink this class
class
PriorityInversion
(
FaultFunction
):
"""
The PriorityInversion class simulates changes in the priority of a job.
"""
def
__init__
(
self
,
proc_info
,
until_sched
:
bool
=
False
):
"""
lambd: Expects task and new value as parameter and returns old value
"""
super
()
.
__init__
(
self
.
start_priority_inversion
,
self
.
end_priority_inversion
)
self
.
_proc_info
=
proc_info
self
.
_until_sched
=
until_sched
def
start_priority_inversion
(
self
,
model
):
proc
=
next
(
p
for
p
in
model
.
processors
if
p
.
identifier
==
self
.
_proc_info
.
identifier
)
sched
=
model
.
scheduler
running_jobs
=
[
p
.
running
for
p
in
model
.
processors
if
p
.
running
is
not
None
]
job
=
next
(
t
.
job
for
t
in
sched
.
task_list
if
t
.
job
.
is_active
()
and
t
.
job
not
in
running_jobs
)
if
job
is
not
None
:
pass
def
end_priority_inversion
(
self
,
model
):
pass
class
TimingChange
(
FaultFunction
):
"""
The TimingError class simulates changes in the timing parameters, e.g. deadline, period etc.
"""
def
__init__
(
self
,
task_info
,
parameter
:
str
,
value
:
float
):
super
()
.
__init__
(
self
.
start_timing_change
,
self
.
end_timing_change
)
self
.
_task_info
=
task_info
self
.
_parameter
=
parameter
self
.
_value
=
value
self
.
_old_value
=
getattr
(
self
.
_task_info
,
parameter
)
def
start_timing_change
(
self
,
model
):
setattr
(
self
.
_task_info
,
self
.
_parameter
,
self
.
_value
)
def
end_timing_change
(
self
,
model
):
setattr
(
self
.
_task_info
,
self
.
_parameter
,
self
.
_old_value
)
class
TimingError
(
TimingChange
):
"""
The TimingError class simulates changes in the timing parameters, e.g. deadline, period etc.
"""
def
__init__
(
self
,
task_info
,
parameter
:
str
,
value
:
float
):
super
()
.
__init__
(
task_info
,
parameter
,
value
)
class
Redundancy
(
TimingChange
):
def
__init__
(
self
,
task_info
,
value
:
float
):
super
()
.
__init__
(
task_info
,
"wcet"
,
task_info
.
wcet
+
value
)
simso/core/Job.py
View file @
b2352129
...
...
@@ -94,6 +94,7 @@ class Job:
self
.
_sim
.
logger
.
log
(
self
.
name
+
" Preempted! ret: "
+
str
(
self
.
ret
),
kernel
=
True
)
# TODO: what to pass as interrupted?
# TODO: Jobs that terminate after their deadline are not recorded
def
_on_terminated
(
self
):
self
.
_on_stop_exec
()
self
.
_etm
.
on_terminated
(
self
)
...
...
@@ -322,11 +323,3 @@ class Job:
if
ret
<=
0
:
# End of job.
self
.
_on_terminated
()
class
SequentialJob
(
Job
):
pass
class
ParallelJob
(
Job
):
pass
simso/core/Model.py
View file @
b2352129
...
...
@@ -8,6 +8,7 @@ from simso.core.Timer import Timer
from
simso.core.etm
import
execution_time_models
from
simso.core.Logger
import
Logger
from
simso.core.results
import
Results
from
simso.core.Fault
import
Fault
class
Model
(
Environment
):
...
...
@@ -31,6 +32,7 @@ class Model(Environment):
self
.
_logger
=
Logger
(
self
)
task_info_list
=
configuration
.
task_info_list
proc_info_list
=
configuration
.
proc_info_list
fault_info_list
=
configuration
.
fault_info_list
self
.
_cycles_per_ms
=
configuration
.
cycles_per_ms
self
.
scheduler
=
configuration
.
scheduler_info
.
instantiate
(
self
)
...
...
@@ -59,6 +61,10 @@ class Model(Environment):
proc
.
caches
=
proc_info
.
caches
self
.
_processors
.
append
(
proc
)
self
.
_fault_list
=
[]
for
fault_info
in
fault_info_list
:
self
.
_fault_list
.
append
(
Fault
(
self
,
fault_info
))
# XXX: too specific.
self
.
penalty_preemption
=
configuration
.
penalty_preemption
self
.
penalty_migration
=
configuration
.
penalty_migration
...
...
simso/core/Processor.py
View file @
b2352129
...
...
@@ -14,6 +14,7 @@ TERMINATE = 3
TIMER
=
4
PREEMPT
=
5
SPEED
=
6
FAIL
=
7
class
ProcInfo
(
object
):
...
...
@@ -75,6 +76,7 @@ class Processor:
env
=
model
,
name
=
"Monitor Timer"
+
proc_info
.
name
)
self
.
_speed
=
proc_info
.
speed
self
.
process
=
self
.
_model
.
process
(
self
.
run
())
self
.
_fault
=
None
def
resched
(
self
):
"""
...
...
@@ -91,11 +93,14 @@ class Processor:
self
.
_running
=
None
def
preempt
(
self
,
job
=
None
):
# self._evts = deque([e for e in self._evts if e[0] != PREEMPT])
self
.
_evts
.
clear_events
(
PREEMPT
)
self
.
_evts
.
append
((
PREEMPT
,))
self
.
_running
=
job
def
fail
(
self
,
fault
=
None
):
self
.
_evts
.
append
((
FAIL
,
fault
))
self
.
_fault
=
fault
# TODO: check if I need this
def
timer
(
self
,
timer
):
self
.
_evts
.
append
((
TIMER
,
timer
))
...
...
@@ -202,6 +207,13 @@ class Processor:
evt
[
1
]
.
call_handler
()
elif
evt
[
0
]
==
SPEED
:
self
.
_speed
=
evt
[
1
]
elif
evt
[
0
]
==
FAIL
:
if
self
.
_fault
is
not
None
:
self
.
sched
.
processors
.
remove
(
self
)
elif
not
self
in
self
.
sched
.
processors
:
self
.
sched
.
processors
.
append
(
self
)
self
.
resched
()
# TODO: changed from preempt, check if still works
elif
evt
[
0
]
==
RESCHED
:
self
.
monitor
.
observe
(
ProcOverheadEvent
(
"Scheduling"
))
self
.
sched
.
monitor_begin_schedule
(
self
)
...
...
simso/core/Scheduler.py
View file @
b2352129
...
...
@@ -14,12 +14,12 @@ from simso.core.SchedulerEvent import SchedulerBeginScheduleEvent, \
SchedulerEndTerminateEvent
class
SchedulerInfo
(
object
):
"""
SchedulerInfo groups the data that characterize a Scheduler (such as the
scheduling overhead) and do the dynamic loading of the scheduler.
"""
def
__init__
(
self
,
clas
=
''
,
overhead
=
0
,
overhead_activate
=
0
,
overhead_terminate
=
0
,
fields
=
None
):
"""
...
...
@@ -142,7 +142,7 @@ class Scheduler(object):
self
.
sim
=
sim
self
.
processors
=
[]
self
.
task_list
=
[]
self
.
_lock
=
Resource
(
sim
)
self
.
_lock
=
Resource
(
sim
)
self
.
overhead
=
scheduler_info
.
overhead
self
.
overhead_activate
=
scheduler_info
.
overhead_activate
self
.
overhead_terminate
=
scheduler_info
.
overhead_terminate
...
...
@@ -220,7 +220,7 @@ class Scheduler(object):
"""
Release the lock. Goes in pair with :meth:`get_lock`.
"""
self
.
_lock
.
release
(
request
)
self
.
_lock
.
release
(
request
)
def
monitor_begin_schedule
(
self
,
cpu
):
self
.
monitor
.
observe
(
SchedulerBeginScheduleEvent
(
cpu
))
...
...
simso/core/Timer.py
View file @
b2352129
...
...
@@ -16,7 +16,6 @@ class InstanceTimer:
self
.
cpu
=
timer
.
cpu
self
.
running
=
False
self
.
overhead
=
timer
.
overhead
self
.
process
=
self
.
_sim
.
process
(
self
.
run
())
def
call_handler
(
self
):
if
self
.
running
:
...
...
simso/core/etm/WCET.py
View file @
b2352129
...
...
@@ -42,6 +42,7 @@ class WCET(AbstractExecutionTimeModel):
def
get_ret
(
self
,
job
):
wcet_cycles
=
int
(
job
.
wcet
*
self
.
sim
.
cycles_per_ms
)
# TODO: this leads to rounding errors, use ceil?
return
int
(
wcet_cycles
-
self
.
get_executed
(
job
))
def
update
(
self
):
...
...
simso/core/results.py
View file @
b2352129
...
...
@@ -8,6 +8,7 @@ class ProcessorR(object):
Add information about a processor such as the number of CxtSave and
CxtLoad and their total overhead.
"""
def
__init__
(
self
):
self
.
context_save_overhead
=
0
self
.
context_save_count
=
0
...
...
@@ -20,6 +21,7 @@ class SchedulerR(object):
Add information about the scheduler such as the number of scheduling
events and their total overhead.
"""
def
__init__
(
self
):
self
.
schedule_overhead
=
0
self
.
activate_overhead
=
0
...
...
@@ -36,6 +38,7 @@ class TaskR(object):
The attribute jobs contains a list of JobR, sorted by activation date.
"""
def
__init__
(
self
,
task
,
delta_preemption
=
100
):
self
.
task
=
task
self
.
delta_preemption
=
delta_preemption
...
...
@@ -144,6 +147,7 @@ class JobR(object):
Add a set of metrics to a job. Such metrics include: preemption count,
migration count, response time, etc.
"""
def
__init__
(
self
,
date
,
job
):
self
.
job
=
job
self
.
preemption_count
=
0
...
...
@@ -206,6 +210,7 @@ class Results(object):
.
"""
def
__init__
(
self
,
model
):
self
.
model
=
model
self
.
error
=
None
...
...
@@ -235,7 +240,7 @@ class Results(object):
for
task
in
self
.
model
.
task_list
:
if
indices
[
task
]
<
len
(
monitors
[
task
]):
evt
=
monitors
[
task
][
indices
[
task
]]
if
m
is
None
or
evt
[
1
]
.
id_
<
m
[
0
][
1
]
.
id_
:
if
m
is
None
or
evt
[
1
]
.
id_
<
m
[
0
][
1
]
.
id_
:
# pylint: disable=E1136
m
=
(
evt
,
task
)
if
m
is
None
:
break
...
...
simso/schedulers/EDF.py
View file @
b2352129
...
...
@@ -5,9 +5,11 @@ architectures.
from
simso.core
import
Scheduler
from
simso.schedulers
import
scheduler
@scheduler
(
"simso.schedulers.EDF"
)
class
EDF
(
Scheduler
):
"""Earliest Deadline First"""
def
on_activate
(
self
,
job
):
job
.
cpu
.
resched
()
...
...
@@ -22,7 +24,7 @@ class EDF(Scheduler):
if
ready_jobs
:
# Select a free processor or, if none,
# the one with the greatest deadline (self in case of equality):
key
=
lambda
x
:
(
def
key
(
x
):
return
(
1
if
not
x
.
running
else
0
,
x
.
running
.
absolute_deadline
if
x
.
running
else
0
,
1
if
x
is
cpu
else
0
...
...
@@ -34,5 +36,5 @@ class EDF(Scheduler):
if
(
cpu_min
.
running
is
None
or
cpu_min
.
running
.
absolute_deadline
>
job
.
absolute_deadline
):
print
(
self
.
sim
.
now
,
job
.
name
,
cpu_min
.
name
)
#
print(self.sim.now, job.name, cpu_min.name)
return
(
job
,
cpu_min
)
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