more iterations to make mapbench interesting

15c7f34b · Nickolai Zeldovich · ff541598 · 15c7f34b
--- a/mapbench.c
+++ b/mapbench.c
@@ -13,8 +13,8 @@ void
 thr(void *arg)
 {
  u64 tid = (u64)arg;
-  for (int i = 0; i < 100; i++) {
+  for (int i = 0; i < 10000; i++) {
    volatile char *p = (char*) (0x40000UL + tid * 8 * 4096);
    if (map((void *) p, 8 * 4096) < 0) {
      printf(1, "%d: map failed\n", tid);
@@ -68,7 +68,7 @@ main(int ac, char **av)
    if(lastc==nthread)
      break;
    while(tcount==lastc)
-      __asm __volatile("");
+      __asm __volatile("":::"memory");
    acquire(&l);
  }
  release(&l);