On 10/10/2015 09:57 PM, Matthew Eaton wrote:
Hello fio group, I have been wondering is there any point in telling fio to use threads rather than forking on a linux platform? Is there any benefit?
Fio is no different than other programs in that regard. Benefits include cheaper switching between threads, downsides include things like shared mm that can hurt you a bit since the threads share the mmap_sem. From fio's point of view, the option is there so you can choose what best models the target application.
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