X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=tests%2Ftest_cycles_per_loop.c;fp=tests%2Ftest_cycles_per_loop.c;h=64b160b775ca63233569c9b680f8997dcb8bbc45;hb=d3d3d8f0136d7c095bdf97b17ec3f1d7a1b1dfe6;hp=0000000000000000000000000000000000000000;hpb=8c3cea9493eb7c10aa855f6fa73725705f7bc349;p=urcu.git

diff --git a/tests/test_cycles_per_loop.c b/tests/test_cycles_per_loop.c
new file mode 100644
index 0000000..64b160b
--- /dev/null
+++ b/tests/test_cycles_per_loop.c
@@ -0,0 +1,21 @@
+#include <urcu/arch.h>
+#include <stdio.h>
+
+#define NR_LOOPS 1000000UL
+
+static inline void loop_sleep(unsigned long l)
+{
+	while(l-- != 0)
+		cpu_relax();
+}
+
+int main()
+{
+	cycles_t time1, time2;
+
+	time1 = get_cycles();
+	loop_sleep(NR_LOOPS);
+	time2 = get_cycles();
+	printf("CPU clock cycles per loop: %g\n", (time2 - time1) /
+						  (double)NR_LOOPS);
+}