Difference between Instruments (Zombies and leaks)

Question

I'm now managing the 'memory' of my new app', but i found a difference that i don't understand. Look at this pic :

The allocations curves are not similar at all. It's from Zombie mode, and Leaks analyzer. But why is it different because the curves seems to be from allocation ?

Thanks !

Answer 1

You should not pay any attention to your memory usage curves with Zombies enabled. With Zombies enabled, memory for Objective-C objects is never freed. (That's how zombies work: instead of deallocating the object, the runtime replaces the dead object with a zombie object that complains if it is ever used.)