public void bench_refreshes() {
		
		refreshed.clear();
		refreshing_error.clear();
		
		long start = System.currentTimeMillis();
		for( KeyPair p : generatedKeys ) {
			threadPool.submit(new PeerRequest(p));
		}
		while( refreshed.size() < generatedKeys.size() ) {
			System.out.println("done refreshing: " + refreshed.size());
			try {
				Thread.sleep(1000);
			} catch( Exception e ) {}
		}
		System.out.println("alldone -- errors: " + refreshing_error.size());
		
		ref_io.draw();
		ref_connections.draw();
		
	}