From 84cd1538ee20b934c6892f38578a08106a934fe8 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <joshua@reverberate.org>
Date: Tue, 4 Aug 2009 19:46:42 -0700
Subject: Integrated benchmarks into main Makefile.

---
 benchmarks/main.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 benchmarks/main.c

(limited to 'benchmarks/main.c')

diff --git a/benchmarks/main.c b/benchmarks/main.c
new file mode 100644
index 0000000..f66b4d0
--- /dev/null
+++ b/benchmarks/main.c
@@ -0,0 +1,46 @@
+
+#include <stdbool.h>
+#include <time.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+static bool initialize();
+static void cleanup();
+static size_t run();
+
+int main (int argc, char *argv[])
+{
+  (void)argc;
+
+  /* Change cwd to where the binary is. */
+  char *lastslash = strrchr(argv[0], '/');
+  char *progname = argv[0];
+  if(lastslash) {
+    *lastslash = '\0';
+    chdir(argv[0]);
+    *lastslash = '/';
+    progname = lastslash + 3;  /* "/b_" */
+  }
+
+  if(!initialize()) {
+    fprintf(stderr, "%s: failed to initialize\n", argv[0]);
+    return 1;
+  }
+
+  size_t total_bytes = 0;
+  clock_t before = clock();
+  for(int i = 0; true; i++) {
+    if((i & 0xFF) == 0 && (clock() - before > CLOCKS_PER_SEC)) break;
+    size_t bytes = run();
+    if(bytes == 0) {
+      fprintf(stderr, "%s: failed.\n", argv[0]);
+      return 2;
+    }
+    total_bytes += bytes;
+  }
+  double elapsed = ((double)clock() - before) / CLOCKS_PER_SEC;
+  printf("%s:%d\n", progname, (int)(total_bytes / elapsed / (1 << 20)));
+  cleanup();
+  return 0;
+}
-- 
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