stasis-aries-wal/benchmarks/multicore/pinDifferentPages.c

51 lines
1 KiB
C

/*
* pinDifferentPages.c
*
* Created on: Oct 12, 2009
* Author: sears
*/
#include <stasis/transactional.h>
#include <pthread.h>
#include <stdio.h>
char * usage = "%s numthreads numops\n";
unsigned long numops;
static void* worker(void* arg) {
pageid_t pid = *(pageid_t*)arg;
for(unsigned long i = 0; i < numops; i++) {
Page * p = loadPage(-1, pid+i);
releasePage(p);
}
return 0;
}
int main(int argc, char * argv[]) {
if(argc != 3) { printf(usage, argv[0]); abort(); }
char * endptr;
unsigned long numthreads = strtoul(argv[1], &endptr, 10);
if(*endptr != 0) { printf(usage, argv[0]); abort(); }
numops= strtoul(argv[2], &endptr, 10) / numthreads;
if(*endptr != 0) { printf(usage, argv[0]); abort(); }
pthread_t workers[numthreads];
pageid_t pids[numthreads];
Tinit();
for(int i = 0; i < numthreads; i++) {
pids[i] = i * numops;
pthread_create(&workers[i], 0, worker, &pids[i]);
}
for(int i = 0; i < numthreads; i++) {
pthread_join(workers[i], 0);
}
Tdeinit();
}