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I am using this test tool :

And I noticed that first 3 iterations take 4 hours but 30 iterations take only 12 hours. I was hoping that 30 iterations will take 40 hours.

I looked at the code and I am surprised, because you see there is no file system i/o involved in this case and all it does is run bunch of tests on malloc'ed memory.

Any pointers to the cause would be appreciated?

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