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reporter.cc
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Sat, May 18, 08:35 (2 d)
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R12667 gbench-stream
reporter.cc
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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <cstdlib>
#include <iostream>
#include <map>
#include <string>
#include <tuple>
#include <vector>
#include "benchmark/benchmark.h"
#include "check.h"
#include "string_util.h"
#include "timers.h"
namespace
benchmark
{
BenchmarkReporter
::
BenchmarkReporter
()
:
output_stream_
(
&
std
::
cout
),
error_stream_
(
&
std
::
cerr
)
{}
BenchmarkReporter
::~
BenchmarkReporter
()
{}
void
BenchmarkReporter
::
PrintBasicContext
(
std
::
ostream
*
out
,
Context
const
&
context
)
{
BM_CHECK
(
out
)
<<
"cannot be null"
;
auto
&
Out
=
*
out
;
#ifndef BENCHMARK_OS_QURT
// Date/time information is not available on QuRT.
// Attempting to get it via this call cause the binary to crash.
Out
<<
LocalDateTimeString
()
<<
"
\n
"
;
#endif
if
(
context
.
executable_name
)
Out
<<
"Running "
<<
context
.
executable_name
<<
"
\n
"
;
const
CPUInfo
&
info
=
context
.
cpu_info
;
Out
<<
"Run on ("
<<
info
.
num_cpus
<<
" X "
<<
(
info
.
cycles_per_second
/
1000000.0
)
<<
" MHz CPU "
<<
((
info
.
num_cpus
>
1
)
?
"s"
:
""
)
<<
")
\n
"
;
if
(
info
.
caches
.
size
()
!=
0
)
{
Out
<<
"CPU Caches:
\n
"
;
for
(
auto
&
CInfo
:
info
.
caches
)
{
Out
<<
" L"
<<
CInfo
.
level
<<
" "
<<
CInfo
.
type
<<
" "
<<
(
CInfo
.
size
/
1024
)
<<
" KiB"
;
if
(
CInfo
.
num_sharing
!=
0
)
Out
<<
" (x"
<<
(
info
.
num_cpus
/
CInfo
.
num_sharing
)
<<
")"
;
Out
<<
"
\n
"
;
}
}
if
(
!
info
.
load_avg
.
empty
())
{
Out
<<
"Load Average: "
;
for
(
auto
It
=
info
.
load_avg
.
begin
();
It
!=
info
.
load_avg
.
end
();)
{
Out
<<
StrFormat
(
"%.2f"
,
*
It
++
);
if
(
It
!=
info
.
load_avg
.
end
())
Out
<<
", "
;
}
Out
<<
"
\n
"
;
}
std
::
map
<
std
::
string
,
std
::
string
>
*
global_context
=
internal
::
GetGlobalContext
();
if
(
global_context
!=
nullptr
)
{
for
(
const
auto
&
kv
:
*
global_context
)
{
Out
<<
kv
.
first
<<
": "
<<
kv
.
second
<<
"
\n
"
;
}
}
if
(
CPUInfo
::
Scaling
::
ENABLED
==
info
.
scaling
)
{
Out
<<
"***WARNING*** CPU scaling is enabled, the benchmark "
"real time measurements may be noisy and will incur extra "
"overhead.
\n
"
;
}
#ifndef NDEBUG
Out
<<
"***WARNING*** Library was built as DEBUG. Timings may be "
"affected.
\n
"
;
#endif
}
// No initializer because it's already initialized to NULL.
const
char
*
BenchmarkReporter
::
Context
::
executable_name
;
BenchmarkReporter
::
Context
::
Context
()
:
cpu_info
(
CPUInfo
::
Get
()),
sys_info
(
SystemInfo
::
Get
())
{}
std
::
string
BenchmarkReporter
::
Run
::
benchmark_name
()
const
{
std
::
string
name
=
run_name
.
str
();
if
(
run_type
==
RT_Aggregate
)
{
name
+=
"_"
+
aggregate_name
;
}
return
name
;
}
double
BenchmarkReporter
::
Run
::
GetAdjustedRealTime
()
const
{
double
new_time
=
real_accumulated_time
*
GetTimeUnitMultiplier
(
time_unit
);
if
(
iterations
!=
0
)
new_time
/=
static_cast
<
double
>
(
iterations
);
return
new_time
;
}
double
BenchmarkReporter
::
Run
::
GetAdjustedCPUTime
()
const
{
double
new_time
=
cpu_accumulated_time
*
GetTimeUnitMultiplier
(
time_unit
);
if
(
iterations
!=
0
)
new_time
/=
static_cast
<
double
>
(
iterations
);
return
new_time
;
}
}
// end namespace benchmark
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