source: tests/zombies/linked-list-perf/experiment.koad @ 576aadb

/*

$cfa is the result of building this configuration:
../cfa-cc/configure --with-target-hosts=host:nodebug CXX=g++-

~/u++ is my own download of uC++ 7.0.0

$cfa -xc experiment.koad -DIMPL_CFA_MIKE_OLD -o perfexp-cfa-mike-old -nodebug -O2 
$cfa -xc experiment.koad -DIMPL_CFA_MIKE_NEW -o perfexp-cfa-mike-new -nodebug -O2
$cfa -xc experiment.koad -DIMPL_CFA_MIKE_POC -o perfexp-cfa-mike-poc -nodebug -O2
$cfa -xc experiment.koad -DIMPL_CFA_COLBY -o perfexp-cfa-colby -nodebug -O2
$cfa -xc experiment.koad -DIMPL_CFA_THIERRY_SUB -o perfexp-cfa-thierry-sub -nodebug -O2
g++ -xc++ experiment.koad -DIMPL_STL -DNDEBUG -o perfexp-stlgpp -O2
~/u++/u++-7.0.0/bin/u++ experiment.cpp -DIMPL_UPP -DNDEBUG -o perfexp-uppupp -O2

                        O2      O2-ltd  O3-ltd
perfexp-cfa-mike-old    2.50    2.55
perfexp-cfa-mike-new            2.18    2.15
perfexp-cfa-mike-poc    1.74    1.71
perfexp-cfa-colby       2.90    2.84    3.09
perfexp-cfa-thierry-sub 1.85
perfexp-stlgpp          4.57    4.72
perfexp-uppupp          2.09    1.94    1.91

O2-ltd is
 -fno-tree-pre -fno-gcse
 (An earlier draft of mike-new didn't work without disabling those optimizations; we probably don't care about that anymore.)

*/

#include <time.h>
#include <stdio.h>

#if defined IMPL_STL

        #include <list>
        struct S {
                volatile int f[64];
        };

#elif defined IMPL_UPP

        #include <uC++.h>
        #include <uSequence.h>
        struct S : public uSeqable {
                volatile int f[64];
        };

#elif defined IMPL_CFA_MIKE_OLD

        #include "mike-old.hfa"
        struct S {
                int f[64]; // FIXME: make "is volatile" consistent; given bug #TBD
                DLISTED_MGD_IMPL_IN(S)
        };
        DLISTED_MGD_IMPL_OUT(S)

#elif defined IMPL_CFA_MIKE_POC

        #include "mike-proto-list.hfa"
        struct S {
                int f[64]; // FIXME: make "is volatile" consistent; given bug #TBD
                inline dlink(S);
        };
        P9_EMBEDDED( S, dlink(S) )

#elif defined IMPL_CFA_MIKE_NEW

        #include <containers/list.hfa>
        struct S {
                int f[64]; // FIXME: make "is volatile" consistent; given bug #TBD
                inline dlink(S);
        };
        P9_EMBEDDED( S, dlink(S) )

#elif defined IMPL_CFA_COLBY

        #include <bits/sequence.hfa>
        struct S {
                inline Seqable;
                int f[64]; // FIXME: make "is volatile" consistent; given bug #TBD
        };
        static inline S *& Back( S * n ) {
                return (S *)Back( (Seqable *)n );
        }
        static inline S *& Next( S * n ) {
                return (S *)Next( (Colable *)n );
        }

#elif defined IMPL_CFA_THIERRY_SUB

        #include "thierry-subqueue-old-rip.hfa"
        typedef  $thread S;


#else
        #error bad impl
#endif


#define Repeat( op ) for ( volatile unsigned int i = 0; i < NoOfNodes; i += 1 ) { op; }

int main() {
        enum { NoOfNodes = 1000, Times = 100000 }; // Times supposed to be 100000
        S s[NoOfNodes];
        clock_t start, end;
        const char * impl = 0;

    #define STATS
    #define REPORT do { \
        double elapsed = ((double) (end - start)) / CLOCKS_PER_SEC; \
        printf("%s %f sec\n", impl, elapsed); \
        STATS \
    } while(0);

    #if defined IMPL_STL
    do {
        std::list<S *> lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( lst.push_back( &s[i] ) );
                Repeat( lst.pop_front() );
        }
        end = clock();
        impl = "STL list, pointer";
        REPORT
    } while (0);
    #elif defined IMPL_UPP
    do {
        uSequence<S> lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( lst.addTail( &s[i] ) );
                Repeat( lst.dropHead() );
        }
        end = clock();
        impl = "u++ intrusive list";
        REPORT
    } while (0);
    #elif defined IMPL_CFA_MIKE_OLD
    do {
        dlist(S, S) lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( insert_last( lst, s[i] ) );
                Repeat( remove( lst`first ) );
        }
        end = clock();
        impl = "cfa mike-old intrusive list";
        REPORT
    } while (0);
    #elif defined IMPL_CFA_MIKE_POC
    do {
        dlist(S) lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( insert_last( lst, s[i] ) );
                Repeat( remove_first( lst ) );
        }
        end = clock();
        impl = "cfa mike-poc intrusive list";
        REPORT
    } while (0);
    #elif defined IMPL_CFA_MIKE_NEW
    do {
        dlist(S) lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( insert_last( lst, s[i] ) );
                Repeat( remove( lst`first ) );
        }
        end = clock();
        impl = "cfa mike-new intrusive list";
        REPORT
    } while (0);
    #elif defined IMPL_CFA_COLBY
    do {
        Sequence(S) lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( addHead( lst, s[i] ) );
                Repeat( dropTail( lst ) );
        }
        end = clock();
        impl = "cfa colby intrusive list";
        REPORT
    } while (0);

    #elif defined IMPL_CFA_THIERRY_SUB
    do {
        __intrusive_lane_t lst;
        start = clock();
        for ( volatile unsigned int t = 0; t < Times; t += 1 ) {
                Repeat( push( lst, &s[i] ) );
                Repeat( pop( lst ) );
        }
        end = clock();
        impl = "cfa thierry subqueue intrusive list";
        REPORT
    } while (0);

    #endif
}