SYSPERF - update pipe1, pipe2

* pipe1 now does a 1-second timing run.

* pipe2 now does a 2-second timing run, just so it runs just a tad longer.

diff --git a/test/sysperf/pipe1.c b/test/sysperf/pipe1.c
index 50a2d68..9e06a6b 100644 (file)
--- a/test/sysperf/pipe1.c
+++ b/test/sysperf/pipe1.c
@@ -11,8 +11,9 @@ main(int ac, char **av)
 {
     long long count = 0;
     long long max;
-    char c;
+    char c[1];
     int j;
+    int loops;
     int fds[2];
 
     printf("tests full duplex pipe 1write,2read,2write,1read loop\n");
@@ -25,8 +26,8 @@ main(int ac, char **av)
         * child process
         */
        close(fds[0]);
-       while (read(fds[1], &c, 1) == 1) {
-           write(fds[1], &c, 1);
+       while (read(fds[1], c, sizeof(c)) == sizeof(c)) {
+           write(fds[1], c, sizeof(c));
        }
        _exit(0);
     } else {
@@ -34,12 +35,25 @@ main(int ac, char **av)
         * parent process.
         */
        close(fds[1]);
-       write(fds[0], &c, 1);   /* prime the caches */
-       read(fds[0], &c, 1);
+       write(fds[0], c, sizeof(c));    /* prime the caches */
+       read(fds[0], c, sizeof(c));
+
+       start_timing();
+       for (j = 0; ; ++j) {
+           write(fds[0], c, sizeof(c));
+           if (read(fds[0], c, sizeof(c)) != sizeof(c)) {
+               fprintf(stderr, "broken pipe during test\n");
+               exit(1);
+           }
+          if ((j & 31) == 0 && stop_timing(0, NULL))
+               break;
+       }
+       loops = j;
+
        start_timing();
-       for (j = 0; j < 100000; ++j) {
-           write(fds[0], &c, 1);
-           if (read(fds[0], &c, 1) != 1) {
+       for (j = 0; j < loops; ++j) {
+           write(fds[0], c, sizeof(c));
+           if (read(fds[0], c, sizeof(c)) != sizeof(c)) {
                fprintf(stderr, "broken pipe during test\n");
                exit(1);
            }

diff --git a/test/sysperf/pipe2.c b/test/sysperf/pipe2.c
index a5c1309..e4b1b32 100644 (file)
--- a/test/sysperf/pipe2.c
+++ b/test/sysperf/pipe2.c
@@ -105,6 +105,7 @@ main(int ac, char **av)
                break;
        }
        loops = j * 2 + 1;
+       loops *= 2;
        usleep(1000000 / 10);
        start_timing();