<s>
The	O
gem5	B-Application
simulator	O
is	O
an	O
open-source	B-License
system-level	B-Application
and	I-Application
processor	I-Application
simulator	I-Application
.	O
</s>
<s>
It	O
is	O
utilized	O
in	O
academic	O
research	O
and	O
in	O
industry	O
by	O
companies	O
such	O
as	O
ARM	B-Architecture
Research	O
,	O
AMD	O
Research	O
,	O
Google	B-Application
,	O
Micron	O
,	O
Metempsy	O
,	O
HP	O
,	O
and	O
Samsung	B-Application
.	O
</s>
<s>
Arm	B-Architecture
has	O
developed	O
further	O
software	O
called	O
Streamline	O
for	O
developers	O
working	O
with	O
gem5	B-Application
which	O
aims	O
to	O
present	O
"	O
a	O
graphical	O
view	O
of	O
system	O
execution	O
"	O
.	O
</s>
<s>
The	O
gem5	B-Application
simulator	O
was	O
born	O
out	O
of	O
the	O
merger	O
of	O
m5	O
(	O
CPU	O
simulation	O
framework	O
)	O
and	O
GEMS	O
(	O
memory	O
timing	O
simulator	O
)	O
.	O
</s>
<s>
gem5	B-Application
is	O
an	O
event-driven	B-General_Concept
simulator	I-General_Concept
with	O
multiple	O
execution	O
modes	O
.	O
</s>
