Creating a stack frame is just updating a register and writing a couple of value... | Hacker News

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School-Cotton on Nov 12, 2016 | parent | context | favorite | on: Operation Costs in CPU Clock Cycles

Creating a stack frame is just updating a register and writing a couple of values to L1 cache.

jheriko on Nov 12, 2016 [–]

sometimes not even that. it might just update a single register and write nothing to cache or memory... and that cost might be hidden by out-of-order execution and the parallelism of different units on the CPU, making it effectively zero-cost.

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