memory info in top command

[Tech W.]

Hi,

Please see my this top info:


  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  DATA COMMAND                                                           
 1161 rabbitmq  20   0  631m 485m 2360 S   22  3.0 433:17.10 611m beam.smp 


I'm not sure, what're the relations between VIRT, RES and DATA etc?

VIRT = RES + DATA + CODE ??

Thanks.