<s>
CoreMark	B-Application
is	O
a	O
benchmark	O
that	O
measures	O
the	O
performance	O
of	O
central	B-General_Concept
processing	I-General_Concept
units	I-General_Concept
(	O
CPU	O
)	O
used	O
in	O
embedded	B-Architecture
systems	I-Architecture
.	O
</s>
<s>
The	O
code	O
is	O
written	O
in	O
C	B-Language
and	O
contains	O
implementations	O
of	O
the	O
following	O
algorithms	O
:	O
list	O
processing	O
(	O
find	O
and	O
sort	O
)	O
,	O
matrix	B-Architecture
manipulation	O
(	O
common	O
matrix	B-Architecture
operations	O
)	O
,	O
state	B-Architecture
machine	I-Architecture
(	O
determine	O
if	O
an	O
input	O
stream	O
contains	O
valid	O
numbers	O
)	O
,	O
and	O
CRC	O
.	O
</s>
<s>
The	O
code	O
is	O
under	O
the	O
Apache	O
License	O
2.0	O
and	O
is	O
free	O
of	O
cost	O
to	O
use	O
,	O
but	O
ownership	O
is	O
retained	O
by	O
the	O
Consortium	O
and	O
publication	O
of	O
modified	O
versions	O
under	O
the	O
CoreMark	B-Application
name	O
prohibited	O
.	O
</s>
<s>
The	O
CRC	O
algorithm	O
serves	O
a	O
dual	O
function	O
;	O
it	O
provides	O
a	O
workload	O
commonly	O
seen	O
in	O
embedded	O
applications	O
and	O
ensures	O
correct	O
operation	O
of	O
the	O
CoreMark	B-Application
benchmark	O
,	O
essentially	O
providing	O
a	O
self-checking	O
mechanism	O
.	O
</s>
<s>
Specifically	O
,	O
to	O
verify	O
correct	O
operation	O
,	O
a	O
16-bit	O
CRC	O
is	O
performed	O
on	O
the	O
data	O
contained	O
in	O
elements	O
of	O
the	O
linked	B-Data_Structure
list	I-Data_Structure
.	O
</s>
<s>
Furthermore	O
,	O
all	O
code	O
used	O
within	O
the	O
timed	O
portion	O
of	O
the	O
benchmark	O
is	O
part	O
of	O
the	O
benchmark	O
itself	O
(	O
no	O
library	B-Library
calls	O
)	O
.	O
</s>
<s>
CoreMark	B-Application
draws	O
on	O
the	O
strengths	O
that	O
made	O
Dhrystone	O
so	O
resilient	O
-	O
it	O
is	O
small	O
,	O
portable	O
,	O
easy	O
to	O
understand	O
,	O
free	O
,	O
and	O
displays	O
a	O
single	O
number	O
benchmark	O
score	O
.	O
</s>
<s>
Unlike	O
Dhrystone	O
,	O
CoreMark	B-Application
has	O
specific	O
run	O
and	O
reporting	O
rules	O
,	O
and	O
was	O
designed	O
to	O
avoid	O
the	O
well	O
understood	O
issues	O
that	O
have	O
been	O
cited	O
with	O
Dhrystone	O
.	O
</s>
<s>
Library	B-Library
calls	O
are	O
made	O
within	O
the	O
timed	O
portion	O
of	O
Dhrystone	O
.	O
</s>
<s>
Typically	O
,	O
those	O
library	B-Library
calls	O
consume	O
the	O
majority	O
of	O
the	O
time	O
consumed	O
by	O
the	O
benchmark	O
.	O
</s>
<s>
Since	O
the	O
library	B-Library
code	O
is	O
not	O
part	O
of	O
the	O
benchmark	O
,	O
it	O
is	O
difficult	O
to	O
compare	O
results	O
if	O
different	O
libraries	O
are	O
used	O
.	O
</s>
<s>
CoreMark	B-Application
results	O
can	O
be	O
found	O
on	O
the	O
CoreMark	B-Application
web	O
site	O
,	O
and	O
on	O
processor	O
data	O
sheets	O
.	O
</s>
