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Old 2020-11-15, 18:56   #4
Runtime Error
Sep 2017

EB16 Posts

The "best" setting based on your benchmarks is (6 cores, 1 worker) because it has the most throughput measured by iterations per second.

Note 1: Running multiple workers usually won't help because the fast Fourier transform (FFT) size for candidate exponents is too big to fit into the processor's cache. RAM is needed to hold the information, so RAM speed often becomes the limiting factor instead of processor speed. Having multiple workers will only lead to greater RAM-bottlenecks.

Note 2: Hyperthreading basically means the operating system can schedule two tasks for each core to perform because there is usually downtime between working on each task. This does not help for Prime95 since that task will fully utilize the core.
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