<s>
CodeXL	O
(	O
formerly	O
AMD	O
CodeXL	O
)	O
was	O
an	O
open-source	B-Application
software	I-Application
development	O
tool	O
suite	O
which	O
included	O
a	O
GPU	B-Architecture
debugger	O
,	O
a	O
GPU	B-Architecture
profiler	O
,	O
a	O
CPU	B-Device
profiler	O
,	O
Graphics	O
frame	O
analyzer	O
and	O
a	O
static	O
shader/kernel	O
analyzer	O
.	O
</s>
<s>
With	O
version	O
2.0	O
CodeXL	O
was	O
made	O
part	O
of	O
GPUOpen	B-Application
and	O
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
subject	O
to	O
the	O
requirements	O
of	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
CPU	B-Device
profiler	O
and	O
Power	O
profiler	O
were	O
included	O
in	O
CodeXL	O
until	O
version	O
2.5	O
.	O
</s>
<s>
CodeXL	O
's	O
GPU	B-Architecture
debugger	O
allows	O
engineers	O
to	O
debug	O
OpenGL	B-Application
and	O
OpenCL	B-Application
API	O
calls	O
and	O
runtime	O
objects	O
,	O
and	O
debug	O
OpenCL	B-Application
kernels	O
:	O
set	O
breakpoints	O
,	O
step	O
through	O
source	O
code	O
in	O
real-time	O
,	O
view	O
all	O
variables	O
across	O
different	O
GPU	B-Architecture
cores	O
during	O
kernel	O
execution	O
,	O
identify	O
logic	O
and	O
memory	O
errors	O
,	O
reduce	O
memory	O
transaction	O
overhead	O
,	O
visualize	O
OpenCL/OpenGL	O
buffers	O
and	O
images	O
and	O
OpenGL	B-Application
textures	O
as	O
pictures	O
or	O
as	O
spreadsheet	O
data	O
,	O
and	O
in	O
this	O
way	O
to	O
improve	O
general	O
software	O
quality	O
and	O
optimize	O
its	O
performance	O
.	O
</s>
<s>
CodeXL	O
's	O
GPU	B-Architecture
profiler	O
collects	O
and	O
visualizes	O
hardware	O
performance	O
counters	O
data	O
,	O
application	O
trace	O
,	O
kernel	O
occupancy	O
,	O
and	O
offers	O
hotspot	O
analysis	O
for	O
AMD	O
GPUs	B-Architecture
and	O
APUs	O
.	O
</s>
<s>
The	O
profiler	O
gathers	O
data	O
from	O
the	O
OpenCL	B-Application
runtime	O
,	O
and	O
from	O
the	O
GPU/APU	O
itself	O
during	O
the	O
execution	O
of	O
the	O
kernels	O
,	O
and	O
can	O
be	O
used	O
to	O
discover	O
performance	O
bottlenecks	O
and	O
optimize	O
kernel	O
execution	O
.	O
</s>
<s>
supersedes	O
the	O
CodeXL	O
for	O
CPU	B-Device
and	O
Power	O
Profiling	O
functionalities	O
on	O
AMD	O
processors	O
.	O
</s>
<s>
CodeXL	O
's	O
CPU	B-Device
profiling	O
suite	O
can	O
be	O
used	O
to	O
identify	O
,	O
investigate	O
and	O
improve	O
the	O
performance	O
of	O
applications	O
,	O
drivers	O
and	O
system	O
software	O
on	O
AMD	O
CPUs	B-Device
.	O
</s>
<s>
CodeXL	O
's	O
CPU	B-Device
profiler	O
uses	O
a	O
statistical	O
sampling	O
based	O
approach	O
with	O
various	O
profiling	O
techniques	O
and	O
measures	O
:	O
Time-Based	O
Profiling	O
(	O
TBP	O
)	O
,	O
Event-Based	O
Profiling	O
(	O
EBP	O
)	O
,	O
Instruction-Based	O
Sampling	O
(	O
IBS	O
)	O
and	O
CPU	B-Device
hardware	O
performance	O
monitors	O
.	O
</s>
<s>
The	O
CodeXL	O
CPU	B-Device
profiler	O
replaces	O
AMD	B-Language
CodeAnalyst	I-Language
.	O
</s>
<s>
CodeXL	O
's	O
static	O
kernel	O
analyzer	O
allows	O
engineers	O
to	O
compile	O
,	O
analyze	O
and	O
disassemble	O
the	O
code	O
of	O
DirectX	B-Application
,	O
OpenGL	B-Application
and	O
Vulkan	B-Application
shaders	O
and	O
OpenCL	B-Application
kernels	O
.	O
</s>
<s>
This	O
way	O
,	O
the	O
tool	O
assists	O
in	O
fine-tuning	O
to	O
achieve	O
best	O
performance	O
on	O
AMD	O
GPUs	B-Architecture
.	O
</s>
<s>
In	O
Q1	O
2017	O
,	O
AMD	O
CodeXL	O
Analyzer	O
was	O
replaced	O
by	O
Radeon	O
GPU	B-Architecture
Analyzer	O
(	O
RGA	O
)	O
,	O
maintaining	O
backward	O
compatibility	O
.	O
</s>
<s>
Radeon	O
GPU	B-Architecture
Analyzer	O
CLI	O
is	O
an	O
offline	O
compiler	O
and	O
a	O
performance	O
analysis	O
tool	O
for	O
DirectX	B-Application
shaders	O
,	O
OpenGL	B-Application
shaders	O
,	O
Vulkan	B-Application
shaders	O
and	O
OpenCL	B-Application
kernels	O
.	O
</s>
<s>
The	O
Frame	O
Analyzer	O
can	O
collect	O
and	O
display	O
a	O
frame	O
timeline	O
for	O
applications	O
that	O
use	O
Microsoft	B-Application
DirectX	I-Application
12	O
or	O
Vulkan	B-Application
.	O
</s>
<s>
The	O
analyzer	O
's	O
view	O
lists	O
each	O
API	O
call	O
that	O
was	O
made	O
on	O
the	O
CPU	B-Device
side	O
and	O
its	O
corresponding	O
command	O
that	O
executed	O
on	O
the	O
GPU	B-Architecture
side	O
in	O
an	O
inter-linked	O
and	O
unified	O
timeline	O
view	O
,	O
as	O
well	O
as	O
aggregated	O
statistics	O
for	O
user-selected	O
specific	O
time	O
fragment	O
–	O
cumulative	O
time	O
for	O
each	O
type	O
of	O
API	O
,	O
number	O
of	O
calls	O
,	O
20	O
longest	O
calls	O
and	O
more	O
.	O
</s>
<s>
CodeXL	O
officially	O
supports	O
both	O
Linux	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
operating	I-Application
systems	I-Application
.	O
</s>
<s>
On	O
Windows	O
,	O
CodeXL	O
is	O
available	O
both	O
as	O
a	O
standalone	O
application	O
and	O
as	O
a	O
fully	O
integrated	O
Microsoft	B-Application
Visual	I-Application
Studio	I-Application
extension	O
.	O
</s>
<s>
CodeXL	O
was	O
successfully	O
used	O
to	O
debug	O
Bullet	B-Application
.	O
</s>
<s>
The	O
latest	O
version	O
of	O
CodeXL	O
is	O
freely	O
available	O
for	O
download	O
on	O
the	O
CodeXL	O
GitHub	B-Application
releases	O
page	O
.	O
</s>
<s>
GPU	B-Language
PerfStudio	I-Language
is	O
AMD	O
's	O
performance	O
and	O
debugging	O
tool	O
for	O
graphics	O
applications	O
.	O
</s>
<s>
It	O
was	O
initially	O
developed	O
to	O
support	O
Direct3D	O
and	O
OpenGL	B-Application
on	O
Microsoft	B-Application
Windows	I-Application
only	O
and	O
was	O
ported	O
to	O
Linux	B-Application
during	O
2013	O
and	O
is	O
available	O
for	O
Linux	B-Application
since	O
the	O
end	O
of	O
Q1	O
2014	O
.	O
</s>
<s>
The	O
suite	O
of	O
tools	O
is	O
considered	O
useful	O
when	O
developing	O
games	O
for	O
Steam	O
Linux	B-Application
and	O
especially	O
useful	O
when	O
optimizing	O
games	O
for	O
AMD	O
GPUs	B-Architecture
.	O
</s>
<s>
GPU	B-Language
PerfStudio	I-Language
has	O
an	O
integrated	O
Frame	O
Profiles	O
,	O
Frame	O
Debugger	O
and	O
API	O
Trace	O
with	O
CPU	B-Device
timing	O
information	O
.	O
</s>
<s>
GPU	B-Language
PerfStudio	I-Language
supports	O
Direct3D	O
10	O
,	O
Direct3D	O
10.1	O
,	O
Direct3D	O
11	O
and	O
OpenGL	B-Application
4.2	O
.	O
</s>
<s>
It	O
is	O
described	O
as	O
a	O
lightweight	O
,	O
no	O
installer	O
,	O
no	O
change	O
to	O
your	O
game	O
,	O
drag	O
and	O
drop	O
suite	O
of	O
GPU	B-Architecture
tools	O
.	O
</s>
<s>
It	O
can	O
be	O
run	O
from	O
a	O
USB	O
drive	O
,	O
there	O
is	O
no	O
need	O
for	O
Visual	B-Application
Studio	I-Application
integration	O
,	O
it	O
runs	O
with	O
game	O
executables	O
,	O
it	O
does	O
not	O
require	O
a	O
special	O
driver	O
or	O
a	O
new	O
compilation	O
.	O
</s>
<s>
GPU	B-Language
PerfStudio	I-Language
3.6	O
supports	O
Direct3D	O
12	O
on	O
Windows	O
10	O
and	O
Vulkan	B-Application
on	O
Windows	O
and	O
Linux	B-Application
.	O
</s>
<s>
GPU	B-Language
PerfStudio	I-Language
is	O
available	O
for	O
Linux	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
At	O
the	O
AMD	O
Developer	O
Summit	O
(	O
APU	O
)	O
in	O
November	O
2013	O
Gordon	O
Selley	O
presented	O
GPU	B-Language
PerfStudio	I-Language
2	O
.	O
</s>
<s>
At	O
the	O
SteamDevDays	O
in	O
February	O
2014	O
,	O
Tony	O
Hosier	O
and	O
Gordon	O
Selley	O
presented	O
GPU	B-Language
PerfStudio	I-Language
2	O
in	O
a	O
43	O
minutes	O
video	O
.	O
</s>
<s>
GPUPerfAPI	O
is	O
AMD	O
's	O
library	O
for	O
accessing	O
GPU	B-Architecture
performance	O
counters	O
on	O
AMD	O
Radeon	O
graphics	O
cards	O
and	O
APUs	O
.	O
</s>
<s>
It	O
is	O
used	O
by	O
GPU	B-Language
PerfStudio	I-Language
and	O
CodeXL	O
and	O
is	O
also	O
available	O
to	O
third	O
party	O
developers	O
who	O
wish	O
to	O
incorporate	O
it	O
within	O
their	O
own	O
applications	O
.	O
</s>
<s>
GPUPerfAPI	O
supports	O
DirectX11	O
,	O
OpenGL	B-Application
,	O
and	O
OpenCL	B-Application
applications	O
.	O
</s>
<s>
GPUPerfAPI	O
is	O
available	O
for	O
Linux	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
