
module.exports = {
	domain_name: "kekeke.com",
	bind_port: 8000,
	work_dir: './work_dir',
	dst_dir: './dst_dir',
	fork_num: 8,
	idle_time: 5 * 60 * 1000,
	buffer_size: 64 * 1024,
	mail_data_max: 10 * 1024 * 1024,
	rcpt_max: 100
};

@@ -118,17 +118,53 @@
 rk_num: 
-8
+(require('os').cpus().length / 2) + 1
 ,%0A%09idle_

Change default fork num to cpu_num / 2 + 1.