memory.c

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/* This file performs the following test: start, stop and
   timer functionality for L1 related events

   - They are counted in the default counting domain and default
     granularity, depending on the platform. Usually this is
     the user domain (PAPI_DOM_USER) and thread context (PAPI_GRN_THR).

   - Start counters
   - Do iterations
   - Stop and read counters
*/

#include <stdio.h>
#include <stdlib.h>

#include "papi.h"
#include "papi_test.h"

#include "do_loops.h"

#define OUT_FMT     "%12d\t%12lld\t%12lld\t%.2f\n"


int
main( int argc, char **argv )
{
    int retval, i, j;
    int EventSet = PAPI_NULL;
    long long values[2];
    const PAPI_hw_info_t *hwinfo = NULL;
    char descr[PAPI_MAX_STR_LEN];
    PAPI_event_info_t evinfo;
    PAPI_mh_level_t *L;


    const int eventlist[] = {
        PAPI_L1_DCA,
        PAPI_L1_DCM,
        PAPI_L1_DCH,
        PAPI_L2_DCA,
        PAPI_L2_DCM,
        PAPI_L2_DCH,
#if 0
        PAPI_L1_LDM,
        PAPI_L1_STM,
        PAPI_L1_DCR,
        PAPI_L1_DCW,
        PAPI_L1_ICM,
        PAPI_L1_TCM,
        PAPI_LD_INS,
        PAPI_SR_INS,
        PAPI_LST_INS,
        PAPI_L2_DCR,
        PAPI_L2_DCW,
        PAPI_CSR_TOT,
        PAPI_MEM_SCY,
        PAPI_MEM_RCY,
        PAPI_MEM_WCY,
        PAPI_L1_ICH,
        PAPI_L1_ICA,
        PAPI_L1_ICR,
        PAPI_L1_ICW,
        PAPI_L1_TCH,
        PAPI_L1_TCA,
        PAPI_L1_TCR,
        PAPI_L1_TCW,
        PAPI_L2_DCM,
        PAPI_L2_ICM,
        PAPI_L2_TCM,
        PAPI_L2_LDM,
        PAPI_L2_STM,
        PAPI_L2_DCH,
        PAPI_L2_DCA,
        PAPI_L2_DCR,
        PAPI_L2_DCW,
        PAPI_L2_ICH,
        PAPI_L2_ICA,
        PAPI_L2_ICR,
        PAPI_L2_ICW,
        PAPI_L2_TCH,
        PAPI_L2_TCA,
        PAPI_L2_TCR,
        PAPI_L2_TCW,
#endif
        0
    };

    tests_quiet( argc, argv );  /* Set TESTS_QUIET variable */

    if ( ( retval =
           PAPI_library_init( PAPI_VER_CURRENT ) ) != PAPI_VER_CURRENT )
        test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );

    if ( ( hwinfo = PAPI_get_hardware_info(  ) ) == NULL ) {
        test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info", 2 );
    }

    if ( ( retval = PAPI_create_eventset( &EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_create_eventset", retval );

    /* Extract and report the cache information */
    L = ( PAPI_mh_level_t * ) ( hwinfo->mem_hierarchy.level );
    for ( i = 0; i < hwinfo->mem_hierarchy.levels; i++ ) {
        for ( j = 0; j < 2; j++ ) {
            int tmp;

            tmp = PAPI_MH_CACHE_TYPE( L[i].cache[j].type );
            if ( tmp == PAPI_MH_TYPE_UNIFIED ) {
                if (!TESTS_QUIET) printf( "L%d Unified ", i + 1 );
            } else if ( tmp == PAPI_MH_TYPE_DATA ) {
                if (!TESTS_QUIET) printf( "L%d Data ", i + 1 );
            } else if ( tmp == PAPI_MH_TYPE_INST ) {
                if (!TESTS_QUIET) printf( "L%d Instruction ", i + 1 );
            } else if ( tmp == PAPI_MH_TYPE_VECTOR ) {
                if (!TESTS_QUIET) printf( "L%d Vector ", i + 1 );
            } else if ( tmp == PAPI_MH_TYPE_TRACE ) {
                if (!TESTS_QUIET) printf( "L%d Trace ", i + 1 );
            } else if ( tmp == PAPI_MH_TYPE_EMPTY ) {
                break;
            } else {
                test_fail( __FILE__, __LINE__,
                    "PAPI_get_hardware_info",
                           PAPI_EBUG );
            }

            tmp = PAPI_MH_CACHE_WRITE_POLICY( L[i].cache[j].type );
            if ( tmp == PAPI_MH_TYPE_WB ) {
                if (!TESTS_QUIET) printf( "Write back " );
            } else if ( tmp == PAPI_MH_TYPE_WT ) {
                if (!TESTS_QUIET) printf( "Write through " );
            } else {
                test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info",
                           PAPI_EBUG );
            }

            tmp = PAPI_MH_CACHE_REPLACEMENT_POLICY( L[i].cache[j].type );
            if ( tmp == PAPI_MH_TYPE_PSEUDO_LRU ) {
                if (!TESTS_QUIET) printf( "Pseudo LRU policy " );
            } else if ( tmp == PAPI_MH_TYPE_LRU ) {
                if (!TESTS_QUIET) printf( "LRU policy " );
            } else if ( tmp == PAPI_MH_TYPE_UNKNOWN ) {
                if (!TESTS_QUIET) printf( "Unknown policy " );
            } else {
                test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info",
                           PAPI_EBUG );
            }

            if (!TESTS_QUIET) {
                printf( "Cache:\n" );
                if ( L[i].cache[j].type ) {
                    printf( "  Total size: %dKB\n"
                        "  Line size: %dB\n"
                        "  Number of Lines: %d\n"
                        "  Associativity: %d\n\n",
                        ( L[i].cache[j].size ) >> 10,
                        L[i].cache[j].line_size,
                        L[i].cache[j].num_lines,
                        L[i].cache[j].associativity );
                }
            }
        }
    }

    for ( i = 0; eventlist[i] != 0; i++ ) {
            if (PAPI_event_code_to_name( eventlist[i], descr ) != PAPI_OK)
               continue;
        if ( PAPI_add_event( EventSet, eventlist[i] ) != PAPI_OK )
           continue;

        if ( PAPI_get_event_info( eventlist[i], &evinfo ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_get_event_info", retval );

        if (!TESTS_QUIET) {
            printf( "\nEvent: %s\nShort: %s\nLong: %s\n\n",
                evinfo.symbol, evinfo.short_descr,
                evinfo.long_descr );
            printf( "       Bytes\t\tCold\t\tWarm\tPercent\n" );
        }

        if ( ( retval = PAPI_start( EventSet ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_start", retval );

        for ( j = 512; j <= 16 * ( 1024 * 1024 ); j = j * 2 ) {
            do_misses( 1, j );
            do_flush(  );

            if ( ( retval = PAPI_reset( EventSet ) ) != PAPI_OK )
                test_fail( __FILE__, __LINE__, "PAPI_reset", retval );

            do_misses( 1, j );

            if ( ( retval = PAPI_read( EventSet, &values[0] ) ) != PAPI_OK )
                test_fail( __FILE__, __LINE__, "PAPI_read", retval );
            if ( ( retval = PAPI_reset( EventSet ) ) != PAPI_OK )
                test_fail( __FILE__, __LINE__, "PAPI_reset", retval );

            do_misses( 1, j );

            if ( ( retval = PAPI_read( EventSet, &values[1] ) ) != PAPI_OK )
                test_fail( __FILE__, __LINE__, "PAPI_read", retval );

            if (!TESTS_QUIET) {
                printf( OUT_FMT, j,
                    values[0], values[1],
                    ( ( float ) values[1] /
                    ( float ) ( ( values[0] !=0 ) ?
                        values[0] : 1 ) * 100.0 ) );
            }
        }

        if ( ( retval = PAPI_stop( EventSet, NULL ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_stop", retval );

        if ( ( retval =
               PAPI_remove_event( EventSet, eventlist[i] ) ) != PAPI_OK )
            test_fail( __FILE__, __LINE__, "PAPI_remove_event", retval );
    }

    if ( ( retval = PAPI_destroy_eventset( &EventSet ) ) != PAPI_OK )
        test_fail( __FILE__, __LINE__, "PAPI_destroy_eventset", retval );

    test_pass( __FILE__ );

    return 0;
}