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Energy-directed Test Suite Optimization (GREENS 2013)
1.
Energy-‐directed
Test
Suite
Op3miza3on
Ding
Li,∗
Cagri
Sahin,†
James
Clause,†
and
William
G.J.
Halfond∗
∗University
of
Southern
California
†
University
of
Delaware
2. Message
• In
situ
tes3ng
is
necessary
§ But
will
consume
baLery
power
• Idea:
op3mize
energy
usage
of
test
suite
• How
much
energy
can
we
save?
1
REFTEK™ Earthquake Sensor
3. Message
• We
developed
Energy
Directed
Test
Suite
Op3mizer(EDTSO).
• Achieved
significant
energy
savings
• Range
of
saving
is
30%
to
70%
• EDTSO
saves
42%
more
energy
on
average
than
tradi3onal
approaches
2
4. Overview
of
the
Process
3
Test suite
Minimization
criteria
Test-related
data
Energy usage
data
EDTSO
Problem
builder
ILP solver
Optimized
test suite
5. Difficul3es
• How
to
maintain
code
coverage?
§ Encode
as
an
Integer
Linear
Programming(ILP)
problem
• ILP
problem
is
NP-‐hard
§ Usually
solvable
in
a
reasonable
amount
of
3me
• How
to
measure
the
energy
consump3on?
§ Use
the
LEAP
pla]orm
with
Android
x86
4
7. Future
Ques3ons
• How
to
measure
the
energy
usage
of
very
short
test
cases?
• How
to
integrate
energy
usage
informa3on
into
the
development
process?
6
