inital commit

test.c

@@ -0,0 +1,41 @@
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <sys/prctl.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv)
+{
+	int merge = prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0);
+	printf("PR_SET_MEMORY_MERGE is %u after exec\n", merge);
+
+	if(merge != 1)
+	{
+		fprintf(stderr, "KSM merging not enabled!\n");
+		return 1;
+	}
+
+	printf("allocating memory\n");
+	char* buf = malloc(100000000);
+
+	printf("writeing memory\n");
+	for(size_t i = 0; i < 100000000; i++)
+		buf[i] = 0x44;
+
+	printf("reading memory\n");
+	volatile char read;
+	while(true)
+	{
+		for(size_t i = 0; i < 100000000; i++)
+		{
+			read = buf[i];
+			if(read != 0x44)
+				return 2;
+		}
+		sleep(1);
+	}
+	return 0;
+}