Securely Emptying Trash - MacBook working hard!

[Mako5]

Whenever I Securely Empty Trash, my Macbook starts working really hard. The CPU stays over 80%, Fans start cranking up, case starts heating up, pinwheels start turning, dogs and cats start raining down... ok maybe not the last part.

What is happening? I thought typically securely emptying the trash would mean the HD is being written over several times but I did not think it should put such a load on the CPU. Any insights? I mean it is running as hard as it does when encoding/decoding video.

 

[ethical]

Whenever I Securely Empty Trash, my Macbook starts working really hard. The CPU stays over 80%, Fans start cranking up, case starts heating up, pinwheels start turning, dogs and cats start raining down... ok maybe not the last part.

What is happening? I thought typically securely emptying the trash would mean the HD is being written over several times but I did not think it should put such a load on the CPU. Any insights? I mean it is running as hard as it does when encoding/decoding video.

mine certainly starts to make a fuss when i do a secure empty, i think it's normal really. i havnt a clue what its doing in terms of internal bits and bobs, but i dont think its a problem.