diff options
Diffstat (limited to 'benchmarks/forks.c')
| -rw-r--r-- | benchmarks/forks.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/benchmarks/forks.c b/benchmarks/forks.c index 1043e124..30f01f72 100644 --- a/benchmarks/forks.c +++ b/benchmarks/forks.c @@ -1,5 +1,11 @@ /* From 4.4 BSD sys/tests/benchmarks/forks.c. */ +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <time.h> +#include <sys/wait.h> + /* * Benchmark program to calculate fork+wait * overhead (approximately). Process @@ -8,13 +14,14 @@ * in calculating exec overhead. */ +int main(argc, argv) char *argv[]; { register int nforks, i; char *cp; int pid, child, status, brksize; - int starttime, endtime; + time_t starttime, endtime; if (argc < 3) { printf("usage: %s number-of-forks sbrk-size\n", argv[0]); @@ -30,7 +37,7 @@ main(argc, argv) printf("%s: bad size to sbrk\n", argv[2]); exit(3); } - + time (&starttime); cp = (char *)sbrk(brksize); if ((int)cp == -1) { @@ -51,6 +58,6 @@ main(argc, argv) ; } time (&endtime); - printf ("Time: %d seconds.\n", endtime - starttime); + printf ("Time: %d seconds.\n", (int) (endtime - starttime)); exit(0); } |