/*
* This file tests uncore events on perf_event kernels
*
* In this test we use the :cpu=0 way of attaching to the CPU
* rather than the legacy PAPI way.
*/
#include <stdio.h>
#include "papi.h"
#include "papi_test.h"
#include "do_loops.h"
#include "perf_event_uncore_lib.h"
int main( int argc, char **argv ) {
int retval,quiet;
int EventSet = PAPI_NULL;
long long values[1];
char *uncore_event=NULL;
char event_name[BUFSIZ];
int uncore_cidx=-1;
const PAPI_component_info_t *info;
/* Set TESTS_QUIET variable */
quiet = tests_quiet( argc, argv );
if (!quiet) {
printf("Testing the :cpu=0 way of attaching an uncore event to a core\n");
}
/* Init the PAPI library */
retval = PAPI_library_init( PAPI_VER_CURRENT );
if ( retval != PAPI_VER_CURRENT ) {
test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
}
/* Find the uncore PMU */
uncore_cidx=PAPI_get_component_index("perf_event_uncore");
if (uncore_cidx<0) {
if (!quiet) {
printf("perf_event_uncore component not found\n");
}
test_skip(__FILE__,__LINE__,"perf_event_uncore component not found",0);
}
/* Check if component disabled */
info=PAPI_get_component_info(uncore_cidx);
if (info->disabled) {
if (!quiet) {
printf("perf_event_uncore component is disabled\n");
}
test_skip(__FILE__,__LINE__,"uncore component disabled",0);
}
/* Get a relevant event name */
uncore_event=get_uncore_event(event_name, BUFSIZ);
if (uncore_event==NULL) {
if (!quiet) {
printf("uncore event name not available\n");
}
test_skip( __FILE__, __LINE__,
"PAPI does not support uncore on this processor",
PAPI_ENOSUPP );
}
sprintf(uncore_event,"%s:cpu=0",uncore_event);
/* Create an eventset */
retval = PAPI_create_eventset(&EventSet);
if (retval != PAPI_OK) {
test_fail(__FILE__, __LINE__, "PAPI_create_eventset",retval);
}
/* Add our uncore event */
retval = PAPI_add_named_event(EventSet, uncore_event);
if (retval != PAPI_OK) {
if ( !quiet ) {
printf("Error trying to use event %s\n", uncore_event);
}
test_fail(__FILE__, __LINE__, "adding uncore event",retval);
}
/* Start PAPI */
retval = PAPI_start( EventSet );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_start", retval );
}
/* our work code */
do_flops( NUM_FLOPS );
/* Stop PAPI */
retval = PAPI_stop( EventSet, values );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
}
if ( !quiet ) {
printf("\tUsing event %s\n",uncore_event);
printf("\t%s: %lld\n",uncore_event,values[0]);
}
test_pass( __FILE__ );
return 0;
}