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DynamicBuffer benchmarks

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fix #441
This commit is contained in:
Vinnie Falco
2017-06-08 08:17:25 -07:00
parent 4bbb21d7af
commit 74c26a8869
6 changed files with 250 additions and 42 deletions
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1
CHANGELOG.md
View File

@ -5,6 +5,7 @@ Version 51
* Fix file_body::get() not setting the more flag correctly
* Use BOOST_FALLTHROUGH
* Use BOOST_STRINGIZE
* DynamicBuffer benchmarks
API Changes:

16
CMakeLists.txt
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@ -111,28 +111,16 @@ endfunction()
if ("${VARIANT}" STREQUAL "coverage")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
"${CMAKE_CXX_FLAGS} -DBEAST_NO_BUFFER_BENCH=1 -fprofile-arcs -ftest-coverage")
set (CMAKE_BUILD_TYPE RELWITHDEBINFO)
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lgcov")
elseif ("${VARIANT}" STREQUAL "ubasan")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fsanitize-blacklist=${PROJECT_SOURCE_DIR}/scripts/blacklist.supp")
"${CMAKE_CXX_FLAGS} -DBEAST_NO_BUFFER_BENCH=1 -funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fsanitize-blacklist=${PROJECT_SOURCE_DIR}/scripts/blacklist.supp")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address,undefined")
set(CMAKE_BUILD_TYPE RELWITHDEBINFO)
elseif ("${VARIANT}" STREQUAL "asan")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -funsigned-char -fsanitize=address -fno-omit-frame-pointer")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
set(CMAKE_BUILD_TYPE RELWITHDEBINFO)
elseif ("${VARIANT}" STREQUAL "usan")
set(CMAKE_CXX_FLAGS
"${CMAKE_CXX_FLAGS} -fsanitize=undefined -fsanitize-blacklist=${PROJECT_SOURCE_DIR}/scripts/blacklist.supp -fno-omit-frame-pointer")
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined")
set(CMAKE_BUILD_TYPE RELWITHDEBINFO)
elseif ("${VARIANT}" STREQUAL "debug")
set(CMAKE_BUILD_TYPE DEBUG)

30
Jamroot
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@ -54,9 +54,9 @@ if [ os.name ] = MACOSX
variant coverage
:
debug
release
:
<cxxflags>"-fprofile-arcs -ftest-coverage"
<cxxflags>"-DBEAST_NO_BUFFER_BENCH=1 -fprofile-arcs -ftest-coverage"
<linkflags>"-lgcov"
;
@ -64,34 +64,10 @@ variant ubasan
:
release
:
<cxxflags>"-funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fsanitize-blacklist=scripts/blacklist.supp"
<cxxflags>"-DBEAST_NO_BUFFER_BENCH=1 -funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fsanitize-blacklist=scripts/blacklist.supp"
<linkflags>"-fsanitize=address,undefined"
;
variant asan
:
release
:
<cxxflags>"-funsigned-char -fsanitize=address -fno-omit-frame-pointer"
<linkflags>"-fsanitize=address"
;
variant msan
:
debug
:
<cxxflags>"-fsanitize=memory -fsanitize-memory-track-origins=2 -fsanitize-memory-use-after-dtor -fno-omit-frame-pointer"
<linkflags>"-fsanitize=memory"
;
variant usan
:
debug
:
<cxxflags>"-fsanitize=undefined -fsanitize-blacklist=scripts/blacklist.supp -fno-omit-frame-pointer"
<linkflags>"-fsanitize=undefined"
;
project beast
: requirements
<include>.

1
test/Jamfile
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@ -18,6 +18,7 @@ unit-test core-tests :
../extras/beast/unit_test/main.cpp
core/async_result.cpp
core/bind_handler.cpp
core/buffer_bench.cpp
core/buffer_cat.cpp
core/buffer_prefix.cpp
core/buffered_read_stream.cpp

1
test/core/CMakeLists.txt
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@ -10,6 +10,7 @@ add_executable (core-tests
../../extras/beast/unit_test/main.cpp
async_result.cpp
bind_handler.cpp
buffer_bench.cpp
buffer_cat.cpp
buffer_prefix.cpp
buffer_test.hpp

241
test/core/buffer_bench.cpp Normal file
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@ -0,0 +1,241 @@
//
// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include <beast/core/flat_buffer.hpp>
#include <beast/core/multi_buffer.hpp>
#include <beast/core/string_view.hpp>
#include <beast/core/detail/read_size_helper.hpp>
#include <beast/unit_test/suite.hpp>
#include <boost/asio/streambuf.hpp>
#include <algorithm>
#include <chrono>
#include <cstdlib>
#include <iomanip>
#include <utility>
#include <vector>
namespace beast {
class buffer_bench_test : public beast::unit_test::suite
{
public:
using size_type = std::uint64_t;
class timer
{
using clock_type =
std::chrono::system_clock;
clock_type::time_point when_;
public:
using duration =
clock_type::duration;
timer()
: when_(clock_type::now())
{
}
duration
elapsed() const
{
return clock_type::now() - when_;
}
};
inline
size_type
throughput(std::chrono::duration<
double> const& elapsed, std::size_t items)
{
using namespace std::chrono;
return static_cast<size_type>(
1 / (elapsed/items).count());
}
template<class MutableBufferSequence>
static
std::size_t
fill(MutableBufferSequence const& buffers)
{
std::size_t n = 0;
using boost::asio::buffer_cast;
using boost::asio::buffer_size;
for(auto const& buffer : buffers)
{
std::fill(
buffer_cast<char*>(buffer),
buffer_cast<char*>(buffer) +
buffer_size(buffer), 0);
n += buffer_size(buffer);
}
return n;
}
template<class DynamicBuffer>
size_type
do_prepares(std::size_t repeat,
std::size_t count, std::size_t size)
{
timer t;
size_type total = 0;
for(auto i = repeat; i--;)
{
DynamicBuffer b;
for(auto j = count; j--;)
{
auto const n = fill(b.prepare(size));
b.commit(n);
total += n;
}
}
return throughput(t.elapsed(), total);
}
template<class DynamicBuffer>
size_type
do_hints(std::size_t repeat,
std::size_t count, std::size_t size)
{
timer t;
size_type total = 0;
for(auto i = repeat; i--;)
{
DynamicBuffer b;
for(auto j = count; j--;)
{
for(auto remain = size; remain;)
{
using beast::detail::read_size_helper;
auto const n = fill(b.prepare(
read_size_helper(b, remain)));
b.commit(n);
remain -= n;
total += n;
}
}
}
return throughput(t.elapsed(), total);
}
template<class DynamicBuffer>
size_type
do_random(std::size_t repeat,
std::size_t count, std::size_t size)
{
timer t;
size_type total = 0;
for(auto i = repeat; i--;)
{
DynamicBuffer b;
for(auto j = count; j--;)
{
auto const n = fill(b.prepare(
1 + (rand()%(2*size))));
b.commit(n);
total += n;
}
}
return throughput(t.elapsed(), total);
}
static
inline
void
do_trials_1(bool)
{
}
template<class F0, class... FN>
void
do_trials_1(bool print, F0&& f, FN... fn)
{
timer t;
using namespace std::chrono;
static size_type constexpr den = 1024 * 1024;
if(print)
{
log << std::right << std::setw(10) <<
((f() + (den / 2)) / den) << " MB/s";
log.flush();
}
else
{
f();
}
do_trials_1(print, fn...);
}
template<class F0, class... FN>
void
do_trials(string_view name,
std::size_t trials, F0&& f0, FN... fn)
{
using namespace std::chrono;
// warm-up
do_trials_1(false, f0, fn...);
do_trials_1(false, f0, fn...);
while(trials--)
{
timer t;
log << std::left << std::setw(24) << name << ":";
log.flush();
do_trials_1(true, f0, fn...);
log << " " <<
duration_cast<milliseconds>(t.elapsed()).count() << "ms";
log << std::endl;
}
}
void
run() override
{
static std::size_t constexpr trials = 1;
static std::size_t constexpr repeat = 250;
std::vector<std::pair<std::size_t, std::size_t>> params;
params.emplace_back(1024, 1024);
params.emplace_back(512, 4096);
params.emplace_back(256, 32768);
log << std::endl;
for(auto const& param : params)
{
auto const count = param.first;
auto const size = param.second;
auto const s = std::string("count=") + std::to_string(count) +
", size=" + std::to_string(size);
log << std::left << std::setw(24) << s << " " <<
std::right << std::setw(15) << "prepare" <<
std::right << std::setw(15) << "with hint" <<
std::right << std::setw(15) << "random" <<
std::endl;
do_trials("multi_buffer", trials,
[&](){ return do_prepares<multi_buffer>(repeat, count, size); }
,[&](){ return do_hints <multi_buffer>(repeat, count, size); }
,[&](){ return do_random <multi_buffer>(repeat, count, size); }
);
do_trials("flat_buffer", trials,
[&](){ return do_prepares<flat_buffer>(repeat, count, size); }
,[&](){ return do_hints <flat_buffer>(repeat, count, size); }
,[&](){ return do_random <flat_buffer>(repeat, count, size); }
);
do_trials("boost::asio::streambuf", trials,
[&](){ return do_prepares<boost::asio::streambuf>(repeat, count, size); }
,[&](){ return do_hints <boost::asio::streambuf>(repeat, count, size); }
,[&](){ return do_random <boost::asio::streambuf>(repeat, count, size); }
);
log << std::endl;
}
pass();
}
};
#if defined(NDEBUG) && ! BEAST_NO_BUFFER_BENCH
BEAST_DEFINE_TESTSUITE(buffer_bench,core,beast);
#endif
} // beast