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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <unistd.h>
void *emptyfunc(void *dummy)
{
return 0;
}
size_t b_pthread_createjoin_serial1(void *dummy)
{
size_t i;
pthread_t td;
for (i=0; i<2500; i++) {
pthread_create(&td, 0, emptyfunc, 0);
pthread_join(td, &dummy);
}
return 0;
}
size_t b_pthread_createjoin_serial2(void *dummy)
{
size_t i, j;
pthread_t td[50];
for (j=0; j<50; j++) {
for (i=0; i<sizeof td/sizeof *td; i++)
pthread_create(td+i, 0, emptyfunc, 0);
for (i=0; i<sizeof td/sizeof *td; i++)
pthread_join(td[i], &dummy);
}
return 0;
}
size_t b_pthread_create_serial1(void *dummy)
{
size_t i;
pthread_attr_t attr;
pthread_t td;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 16384);
for (i=0; i<2500; i++)
pthread_create(&td, &attr, emptyfunc, 0);
return 0;
}
void *lockunlock(void *mut)
{
size_t i;
for (i=0; i<1000000; i++) {
pthread_mutex_lock(mut);
pthread_mutex_unlock(mut);
}
return 0;
}
size_t b_pthread_uselesslock(void *dummy)
{
pthread_t td;
pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
pthread_create(&td, 0, lockunlock, &mut);
pthread_join(td, &dummy);
return 0;
}
size_t b_pthread_createjoin_minimal1(void *dummy)
{
size_t i;
pthread_t td;
pthread_attr_t a;
pthread_attr_init(&a);
pthread_attr_setstacksize(&a, sysconf(_SC_PAGESIZE));
pthread_attr_setguardsize(&a, 0);
for (i=0; i<2500; i++) {
pthread_create(&td, &a, emptyfunc, 0);
pthread_join(td, &dummy);
}
return 0;
}
size_t b_pthread_createjoin_minimal2(void *dummy)
{
size_t i, j;
pthread_t td[50];
pthread_attr_t a;
pthread_attr_init(&a);
pthread_attr_setstacksize(&a, sysconf(_SC_PAGESIZE));
pthread_attr_setguardsize(&a, 0);
for (j=0; j<50; j++) {
for (i=0; i<sizeof td/sizeof *td; i++)
pthread_create(td+i, &a, emptyfunc, 0);
for (i=0; i<sizeof td/sizeof *td; i++)
pthread_join(td[i], &dummy);
}
return 0;
}
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