Article: Multi-Core Slow Down

By Mark Hermeling

Hermeling_lg An interesting article by Dan Woods on Multi-core slowdown. The article tries to temper people's expectations with regards to mArticle: Multi-Core Slow Downulticore. The basic argument goes: A multicore processor has more raw processing power, but it requires the software load that runs on top of that processor to be able to use those cores, if not, the software could run at the same speed as single-core, or even slower.

One of the ways to use all the cores of course is multi-threaded programming in combination with an SMP operating system that can schedule over all the cores (SMP being Symmetric Multi Processing). Typically multi-threaded programs use multiple threads of execution and use synchronization primitives to make sure executions happens in the right order.

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