Add bench-zlib

CHANGELOG.md

@@ -6,6 +6,7 @@ Version 96:
 * Rename wsload compile target
 * Fix library.json
 * Update boostorg links
+* Add bench-zlib
 
 --------------------------------------------------------------------------------
 

CMakeLists.txt

@@ -112,22 +112,22 @@ endif()
 #
 #-------------------------------------------------------------------------------
 
-function(DoGroupSources curdir rootdir folder)
+function (DoGroupSources curdir rootdir folder)
     file (GLOB children RELATIVE ${PROJECT_SOURCE_DIR}/${curdir} ${PROJECT_SOURCE_DIR}/${curdir}/*)
     foreach (child ${children})
         if (IS_DIRECTORY ${PROJECT_SOURCE_DIR}/${curdir}/${child})
-            DoGroupSources(${curdir}/${child} ${rootdir} ${folder})
+            DoGroupSources (${curdir}/${child} ${rootdir} ${folder})
         elseif (${child} STREQUAL "CMakeLists.txt")
             source_group("" FILES ${PROJECT_SOURCE_DIR}/${curdir}/${child})
         else()
-            string(REGEX REPLACE ^${rootdir} ${folder} groupname ${curdir})
-            string(REPLACE "/" "\\" groupname ${groupname})
-            source_group(${groupname} FILES ${PROJECT_SOURCE_DIR}/${curdir}/${child})
+            string (REGEX REPLACE ^${rootdir} ${folder} groupname ${curdir})
+            string (REPLACE "/" "\\" groupname ${groupname})
+            source_group (${groupname} FILES ${PROJECT_SOURCE_DIR}/${curdir}/${child})
         endif()
     endforeach()
 endfunction()
 
-function(GroupSources curdir folder)
+function (GroupSources curdir folder)
     DoGroupSources (${curdir} ${curdir} ${folder})
 endfunction()
 

test/CMakeLists.txt

@@ -7,7 +7,8 @@
 # Official repository: https://github.com/boostorg/beast
 #
 
-include_directories (extras/include)
+include_directories (./extern)
+include_directories (./extras/include)
 
 file (GLOB_RECURSE EXTRAS_INCLUDES
     ${PROJECT_SOURCE_DIR}/test/extras/include/boost/beast/*.hpp
@@ -20,6 +21,29 @@ if (OPENSSL_FOUND)
     link_libraries (${OPENSSL_LIBRARIES})
 endif()
 
+set (ZLIB_SOURCES
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/crc32.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/deflate.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffast.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffixed.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inflate.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inftrees.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/trees.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zlib.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zutil.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/adler32.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/compress.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/crc32.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/deflate.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/infback.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffast.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inflate.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inftrees.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/trees.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/uncompr.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zutil.c
+)
+
 add_subdirectory (beast)
 add_subdirectory (bench)
 add_subdirectory (doc)

test/Jamfile

@@ -7,6 +7,25 @@
 # Official repository: https://github.com/boostorg/beast
 #
 
+project test
+    : requirements
+    <include>./extern
+    ;
+
+path-constant ZLIB_SOURCES :
+    extern/zlib-1.2.11/adler32.c
+    extern/zlib-1.2.11/compress.c
+    extern/zlib-1.2.11/crc32.c
+    extern/zlib-1.2.11/deflate.c
+    extern/zlib-1.2.11/infback.c
+    extern/zlib-1.2.11/inffast.c
+    extern/zlib-1.2.11/inflate.c
+    extern/zlib-1.2.11/inftrees.c
+    extern/zlib-1.2.11/trees.c
+    extern/zlib-1.2.11/uncompr.c
+    extern/zlib-1.2.11/zutil.c
+    ;
+
 alias run-tests :
     beast//run-tests
     bench//run-tests

test/beast/zlib/CMakeLists.txt

@@ -7,33 +7,11 @@
 # Official repository: https://github.com/boostorg/beast
 #
 
-GroupSources(test/extras/include/boost/beast extras)
 GroupSources(include/boost/beast beast)
+GroupSources(test/extras/include/boost/beast extras)
+GroupSources(test/extern/zlib-1.2.11 zlib)
 GroupSources(test/beast/zlib "/")
 
-set(ZLIB_SOURCES
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/crc32.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/deflate.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inffast.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inffixed.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inflate.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inftrees.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/trees.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/zlib.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/zutil.h
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/adler32.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/compress.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/crc32.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/deflate.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/infback.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inffast.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inflate.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/inftrees.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/trees.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/uncompr.c
-    ${CMAKE_CURRENT_LIST_DIR}/zlib-1.2.11/zutil.c
-)
-
 if (MSVC)
     set_source_files_properties (${ZLIB_SOURCES} PROPERTIES COMPILE_FLAGS "/wd4127 /wd4131 /wd4244")
 endif()

test/beast/zlib/Jamfile

@@ -7,20 +7,6 @@
 # Official repository: https://github.com/boostorg/beast
 #
 
-local ZLIB_SOURCES =
-    zlib-1.2.11/adler32.c
-    zlib-1.2.11/compress.c
-    zlib-1.2.11/crc32.c
-    zlib-1.2.11/deflate.c
-    zlib-1.2.11/infback.c
-    zlib-1.2.11/inffast.c
-    zlib-1.2.11/inflate.c
-    zlib-1.2.11/inftrees.c
-    zlib-1.2.11/trees.c
-    zlib-1.2.11/uncompr.c
-    zlib-1.2.11/zutil.c
-    ;
-
 local SOURCES =
     error.cpp
     deflate_stream.cpp

test/bench/CMakeLists.txt

@@ -11,3 +11,4 @@ add_subdirectory (buffers)
 add_subdirectory (parser)
 add_subdirectory (utf8_checker)
 add_subdirectory (wsload)
+add_subdirectory (zlib)

test/bench/Jamfile

@@ -12,4 +12,5 @@ alias run-tests :
     parser//run-tests
     wsload//run-tests
     utf8_checker//run-tests
+    #zlib//run-tests          # Not built
     ;

test/bench/zlib/CMakeLists.txt

@@ -0,0 +1,28 @@
+#
+# Copyright (c) 2016-2017 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)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(test/extras/include/boost/beast extras)
+GroupSources(test/extern/zlib-1.2.11 zlib)
+GroupSources(test/bench/zlib "/")
+
+if (MSVC)
+    set_source_files_properties (${ZLIB_SOURCES} PROPERTIES COMPILE_FLAGS "/wd4127 /wd4131 /wd4244")
+endif()
+
+add_executable (bench-zlib
+    ${BOOST_BEAST_INCLUDES}
+    ${EXTRAS_INCLUDES}
+    ${ZLIB_SOURCES}
+    ${TEST_MAIN}
+    Jamfile
+    ztest.hpp
+    deflate_stream.cpp
+    inflate_stream.cpp
+)

test/bench/zlib/Jamfile

@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 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)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe bench-zlib :
+    $(ZLIB_SOURCES)
+    $(TEST_MAIN)
+    deflate_stream.cpp
+    inflate_stream.cpp
+    ;

test/bench/zlib/deflate_stream.cpp

@@ -0,0 +1,200 @@
+//
+// Copyright (c) 2016-2017 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)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/zlib/deflate_stream.hpp>
+#include <boost/beast/test/throughput.hpp>
+#include <boost/beast/unit_test/dstream.hpp>
+#include <boost/beast/unit_test/suite.hpp>
+#include <iomanip>
+#include <random>
+#include <string>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class deflate_stream_test : public beast::unit_test::suite
+{
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    std::string
+    doDeflateBeast(string_view const& in)
+    {
+        z_params zs;
+        memset(&zs, 0, sizeof(zs));
+        deflate_stream ds;
+        ds.reset(
+            Z_DEFAULT_COMPRESSION,
+            15,
+            4,
+            Strategy::normal);
+        std::string out;
+        out.resize(deflate_upper_bound(in.size()));
+        zs.next_in = in.data();
+        zs.avail_in = in.size();
+        zs.next_out = &out[0];
+        zs.avail_out = out.size();
+        error_code ec;
+        ds.write(zs, Flush::full, ec);
+        BEAST_EXPECTS(! ec, ec.message());
+        out.resize(zs.total_out);
+        return out;
+    }
+
+    std::string
+    doDeflateZLib(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            Z_DEFAULT_COMPRESSION,
+            Z_DEFLATED,
+            -15,
+            4,
+            Z_DEFAULT_STRATEGY
+        );
+        if(result != Z_OK)
+            throw std::logic_error("deflateInit2 failed");
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    void
+    doCorpus(
+        std::size_t size,
+        std::size_t repeat)
+    {
+        std::size_t constexpr trials = 3;
+        auto const c1 = corpus1(size);
+        auto const c2 = corpus2(size);
+        log <<
+            std::left << std::setw(10) << (std::to_string(size) + "B") <<
+            std::right << std::setw(12) << "Beast" << "     " <<
+            std::right << std::setw(12) << "ZLib" <<
+                std::endl;
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus1";
+            std::string out1;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out1 = doDeflateBeast(c1);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            std::string out2;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out2 = doDeflateZLib(c1);
+            BEAST_EXPECT(out1 == out2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus2";
+            std::string out1;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out1 = doDeflateBeast(c2);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            std::string out2;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out2 = doDeflateZLib(c2);
+            BEAST_EXPECT(out1 == out2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        log << std::endl;
+    }
+
+    void
+    doBench()
+    {
+        doCorpus(      16 * 1024, 512);
+        doCorpus(    1024 * 1024,   8);
+        doCorpus(8 * 1024 * 1024,   1);
+    }
+
+    void
+    run() override
+    {
+        doBench();
+        pass();
+    }
+};
+
+BOOST_BEAST_DEFINE_TESTSUITE(deflate_stream,zlib,beast);
+
+} // zlib
+} // beast
+} // boost

test/bench/zlib/inflate_stream.cpp

@@ -0,0 +1,245 @@
+//
+// Copyright (c) 2016-2017 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)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/zlib/inflate_stream.hpp>
+#include <boost/beast/test/throughput.hpp>
+#include <boost/beast/unit_test/dstream.hpp>
+#include <boost/beast/unit_test/suite.hpp>
+#include <iomanip>
+#include <random>
+#include <string>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class inflate_stream_test : public beast::unit_test::suite
+{
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    static
+    std::string
+    compress(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            Z_DEFAULT_COMPRESSION,
+            Z_DEFLATED,
+            -15,
+            4,
+            Z_DEFAULT_STRATEGY);
+        if(result != Z_OK)
+            throw std::logic_error("deflateInit2 failed");
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    std::string
+    doInflateBeast(string_view const& in)
+    {
+        z_params zs;
+        std::string out;
+        memset(&zs, 0, sizeof(zs));
+        inflate_stream is;
+        zs.next_in = &in[0];
+        zs.avail_in = in.size();
+        out.resize(in.size());
+        zs.next_out = &out[0];
+        zs.avail_out = out.size();
+        for(;;)
+        {
+            error_code ec;
+            is.write(zs, Flush::sync, ec);
+            if(ec)
+                throw std::logic_error("inflate_stream failed");
+            if(zs.avail_out > 0)
+                break;
+            out.resize(2 * zs.total_out);
+            zs.next_out = &out[zs.total_out];
+            zs.avail_out = out.size() - zs.total_out;
+        }
+        out.resize(zs.total_out);
+        return out;
+    }
+
+    std::string
+    doInflateZLib(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        std::string out;
+        memset(&zs, 0, sizeof(zs));
+        result = inflateInit2(&zs, -15);
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        out.resize(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        for(;;)
+        {
+            result = inflate(&zs, Z_SYNC_FLUSH);
+            if( result == Z_NEED_DICT ||
+                result == Z_DATA_ERROR ||
+                result == Z_MEM_ERROR)
+            {
+                throw std::logic_error("inflate failed");
+            }
+            if(zs.avail_out > 0)
+                break;
+            if(result == Z_STREAM_END)
+                break;
+            out.resize(2 * zs.total_out);
+            zs.next_out = (Bytef*)&out[zs.total_out];
+            zs.avail_out = static_cast<uInt>(
+                out.size() - zs.total_out);
+        }
+        out.resize(zs.total_out);
+        inflateEnd(&zs);
+        return out;
+    }
+
+    void
+    doCorpus(
+        std::size_t size,
+        std::size_t repeat)
+    {
+        std::size_t constexpr trials = 3;
+        std::uint64_t constexpr scale = 16;
+        auto const c1 = corpus1(size);
+        auto const c2 = corpus2(size * scale);
+        auto const in1 = compress(c1);
+        auto const in2 = compress(c2);
+        log <<
+            std::left << std::setw(10) << (std::to_string(size) + "B") <<
+            std::right << std::setw(12) << "Beast" << "     " <<
+            std::right << std::setw(12) << "ZLib" <<
+                std::endl;
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus1";
+            std::string out;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateBeast(in1);
+            BEAST_EXPECT(out == c1);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateZLib(in1);
+            BEAST_EXPECT(out == c1);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus2";
+            std::string out;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateBeast(in2);
+            BEAST_EXPECT(out == c2);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * scale * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateZLib(in2);
+            BEAST_EXPECT(out == c2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * scale * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        log << std::endl;
+    }
+
+    void
+    doBench()
+    {
+        doCorpus(  1 * 1024 * 1024, 64);
+        doCorpus(  4 * 1024 * 1024, 16);
+        doCorpus( 16 * 1024 * 1024,  8);
+    }
+
+    void
+    run() override
+    {
+        doBench();
+        pass();
+    }
+};
+
+BOOST_BEAST_DEFINE_TESTSUITE(inflate_stream,zlib,beast);
+
+} // zlib
+} // beast
+} // boost