Dear,

The following lines from the source cloud of cloudSim, I think it will answer your question.

/**

* The size of this Cloudlet to be executed in a CloudResource (unit: in MI).

*/

private long cloudletLength;

/**

* The input file size of this Cloudlet before execution (unit: in byte). in byte = program +

* input data size

*/

private final long cloudletFileSize;

Regards!