From fa60355b7aacd1f4b10f1497792787288c0632ff Mon Sep 17 00:00:00 2001
From: hunt <hunt>
Date: Wed, 13 Jul 2005 06:34:00 +0000
Subject: 2005-07-12  Martin Hunt  <hunt@redhat.com>

	* bench/run_bench (do_time): Use ttest instead of "time".
	Fix processor computation.

	* bench/ttest.c: Like "time.c" except takes an argument
	to adjust loop size. Also computes system time + user time
	instead of real time. Added a warmup loop to get
	consistent results from cpus which adjust speed based on load.

	* bench/time.c: Replaced by ttest.c
---
 runtime/probes/bench/time.c | 68 ---------------------------------------------
 1 file changed, 68 deletions(-)
 delete mode 100644 runtime/probes/bench/time.c

(limited to 'runtime/probes/bench/time.c')

diff --git a/runtime/probes/bench/time.c b/runtime/probes/bench/time.c
deleted file mode 100644
index fb423276..00000000
--- a/runtime/probes/bench/time.c
+++ /dev/null
@@ -1,68 +0,0 @@
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-typedef unsigned long long uint64;
-
-struct timeval t1;
-
-void start(struct timeval *tv)
-{
-  gettimeofday (tv, NULL);
-}
-
-uint64 time_delta(struct timeval *start, struct timeval *stop)
-{
-  uint64 secs, usecs;
-  
-  secs = stop->tv_sec - start->tv_sec;
-  usecs = stop->tv_usec - start->tv_usec;
-  if (usecs < 0) {
-    secs--;
-    usecs += 1000000;
-  }
-  return secs * 1000000 + usecs;
-}
-
-uint64 stop(struct timeval *begin)
-{
-  struct timeval end;
-  gettimeofday (&end, NULL);
-  return time_delta (begin, &end);
-}
-
-
-int main()
-{
-  int fd, i;
-  char buf[1024];
-  uint64 nsecs;
-
-  system ("touch foo");
-  fd = open ("foo", O_RDWR);
-
-  start(&t1);
-  for (i = 0; i < 1000000; i++) {
-    if (read (fd, buf, 0) < 0)
-      perror("read");
-  }
-  nsecs = stop(&t1) / 1000;
-
-  printf("%lld ", nsecs);
-
-  start(&t1);
-  for (i = 0; i < 1000000; i++) {
-    if (write (fd, buf, 0) < 0)
-      perror("write");
-  }
-  nsecs = stop(&t1) / 1000;
-  close (fd);
-
-  printf("%lld\n", nsecs);
-
-  return 0;
-}
-- 
cgit