static public void main(String[] args) throws IOException, InterruptedException {
long startTime = System.currentTimeMillis();
//new File("/media/b0beb325-d9fe-4a30-9f58-77e6b15e6b7d/lost+found/large/").mkdirs();
DB db = DBMaker.openFile("/media/b0beb325-d9fe-4a30-9f58-77e6b15e6b7d/db")
.disableTransactions()
.make();
Map<Long,Integer> map = db.createTreeMap("test");
// List<Long> test = db.createLinkedList("test");
final double max = 1e10;
for (Long i = 1L; i < max; i++) {
if (i % 1e6 == 0) {
System.out.println(i + " - " +(100D * i /max) + " %");
//Thread.sleep(1000000);
}
// test.add(i);
map.put(i,i.hashCode());
}
db.defrag(true);
db.close();
System.out.println("Finished, total time: " + (System.currentTimeMillis() - startTime) / 1000);
}