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by jcelerier
1807 days ago
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> Because memory access patterns, system call overhead, operating system interaction etc. have much more impact on overall performance In most media apps, the actually processing intensive part definitely does not do syscalls or OS interaction. It's pure computations for as long as possible (and often non-parallelizable, e.g. x[i] *= x[i-1] sort of things). Disabling those optimisations is a killer. |
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