} else {
StringWriter w = new StringWriter();
PrintWriter pw = new PrintWriter(w);
IndentPrinter out = new IndentPrinter(pw, " ");
out.println("Throughput : "+ getThroughputKps() +" k/s and " + getThroughputRps() +" records/s");
out.printIndent();
out.println("Latency with force : "+getAvgSyncedLatencyMs()+" ms" );
out.printIndent();
out.println("Latency without force: "+getAvgUnSyncedLatencyMs()+" ms" );
return w.getBuffer().toString();
}