beast/test/bench/parser/bench_parser.cpp
2019-03-05 11:09:53 -08:00

347 lines
8.1 KiB
C++

//
// Copyright (c) 2016-2019 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)
//
// Official repository: https://github.com/boostorg/beast
//
#include "nodejs_parser.hpp"
#include "test/beast/http/message_fuzz.hpp"
#include <boost/beast/http.hpp>
#include <boost/beast/core/buffer_traits.hpp>
#include <boost/beast/core/buffers_suffix.hpp>
#include <boost/beast/core/buffers_to_string.hpp>
#include <boost/beast/core/ostream.hpp>
#include <boost/beast/core/flat_buffer.hpp>
#include <boost/beast/core/multi_buffer.hpp>
#include <boost/beast/_experimental/unit_test/suite.hpp>
#include <chrono>
#include <iostream>
#include <vector>
namespace boost {
namespace beast {
namespace http {
class parser_test : public beast::unit_test::suite
{
public:
static std::size_t constexpr N = 2000;
//using corpus = std::vector<multi_buffer>;
using corpus = std::vector<flat_buffer>;
corpus creq_;
corpus cres_;
std::size_t size_ = 0;
corpus
build_corpus(std::size_t n, std::true_type)
{
corpus v;
v.resize(n);
message_fuzz mg;
for(std::size_t i = 0; i < n; ++i)
{
mg.request(v[i]);
size_ += v[i].size();
BEAST_EXPECT(v[i].size() > 0);
}
return v;
}
corpus
build_corpus(std::size_t n, std::false_type)
{
corpus v;
v.resize(n);
message_fuzz mg;
for(std::size_t i = 0; i < n; ++i)
{
mg.response(v[i]);
size_ += v[i].size();
BEAST_EXPECT(v[i].size() > 0);
}
return v;
}
template<class ConstBufferSequence,
bool isRequest>
static
std::size_t
feed(ConstBufferSequence const& buffers,
basic_parser<isRequest>& parser,
error_code& ec)
{
beast::buffers_suffix<
ConstBufferSequence> cb{buffers};
std::size_t used = 0;
for(;;)
{
auto const n =
parser.put(cb, ec);
if(ec)
return 0;
if(n == 0)
break;
cb.consume(n);
used += n;
if(parser.is_done())
break;
if(buffer_bytes(cb) == 0)
break;
}
return used;
}
template<class Parser>
void
testParser1(std::size_t repeat, corpus const& v)
{
while(repeat--)
for(auto const& b : v)
{
Parser p;
error_code ec;
p.write(b.data(), ec);
if(! BEAST_EXPECTS(! ec, ec.message()))
log << buffers_to_string(b.data()) << std::endl;
}
}
template<class Parser>
void
testParser2(std::size_t repeat, corpus const& v)
{
while(repeat--)
for(auto const& b : v)
{
Parser p;
p.header_limit((std::numeric_limits<std::uint32_t>::max)());
error_code ec;
feed(b.data(), p, ec);
if(! BEAST_EXPECTS(! ec, ec.message()))
log << buffers_to_string(b.data()) << std::endl;
}
}
template<class Function>
void
timedTest(std::size_t repeat, std::string const& name, Function&& f)
{
using namespace std::chrono;
using clock_type = std::chrono::high_resolution_clock;
log << name << std::endl;
for(std::size_t trial = 1; trial <= repeat; ++trial)
{
auto const t0 = clock_type::now();
f();
auto const elapsed = clock_type::now() - t0;
log <<
"Trial " << trial << ": " <<
duration_cast<milliseconds>(elapsed).count() << " ms" << std::endl;
}
}
template<bool isRequest>
struct null_parser :
basic_parser<isRequest>
{
void
on_request_impl(
verb, string_view, string_view,
int, error_code&) override
{
}
void
on_response_impl(
int, string_view, int,
error_code&) override
{
}
void
on_field_impl(
field, string_view, string_view,
error_code&) override
{
}
void
on_header_impl(error_code&) override
{
}
void
on_body_init_impl(
boost::optional<std::uint64_t> const&,
error_code&) override
{
}
std::size_t
on_body_impl(
string_view,
error_code&) override
{
return 0;
}
void
on_chunk_header_impl(
std::uint64_t,
string_view,
error_code&) override
{
}
std::size_t
on_chunk_body_impl(
std::uint64_t,
string_view,
error_code&) override
{
return 0;
}
void
on_finish_impl(error_code&) override
{
}
};
template<bool isRequest, class Body, class Fields>
struct bench_parser : basic_parser<isRequest>
{
using mutable_buffers_type =
net::mutable_buffer;
void
on_request_impl(verb, string_view,
string_view, int, error_code&) override
{
}
void
on_response_impl(int,
string_view, int, error_code&) override
{
}
void
on_field_impl(field,
string_view, string_view, error_code&) override
{
}
void
on_header_impl(error_code&) override
{
}
void
on_body_init_impl(
boost::optional<std::uint64_t> const&,
error_code&) override
{
}
std::size_t
on_body_impl(
string_view s, error_code&) override
{
return s.size();
}
void
on_chunk_header_impl(std::uint64_t,
string_view, error_code&) override
{
}
std::size_t
on_chunk_body_impl(std::uint64_t,
string_view s, error_code&) override
{
return s.size();
}
void
on_finish_impl(error_code&) override
{
}
};
void
testSpeed()
{
static std::size_t constexpr Trials = 5;
static std::size_t constexpr Repeat = 500;
creq_ = build_corpus(N/2, std::true_type{});
cres_ = build_corpus(N/2, std::false_type{});
log << "sizeof(request parser) == " <<
sizeof(null_parser<true>) << '\n';
log << "sizeof(response parser) == " <<
sizeof(null_parser<false>)<< '\n';
testcase << "Parser speed test, " <<
((Repeat * size_ + 512) / 1024) << "KB in " <<
(Repeat * (creq_.size() + cres_.size())) << " messages";
#if 0
timedTest(Trials, "http::parser",
[&]
{
testParser2<request_parser<dynamic_body>>(Repeat, creq_);
testParser2<response_parser<dynamic_body>>(Repeat, cres_);
});
#endif
#if 1
timedTest(Trials, "http::basic_parser",
[&]
{
testParser2<bench_parser<
true, dynamic_body, fields> >(
Repeat, creq_);
testParser2<bench_parser<
false, dynamic_body, fields>>(
Repeat, cres_);
});
#if 1
timedTest(Trials, "nodejs_parser",
[&]
{
testParser1<nodejs_parser<
true, dynamic_body, fields>>(
Repeat, creq_);
testParser1<nodejs_parser<
false, dynamic_body, fields>>(
Repeat, cres_);
});
#endif
#endif
pass();
}
void run() override
{
pass();
testSpeed();
}
};
BEAST_DEFINE_TESTSUITE(beast,benchmarks,parser);
} // http
} // beast
} // boost