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Also various performance characteristics graphs will have steps around the multiples of page sizes. People would find out anyway. (Although maybe the runtime de
by viraptor 1y ago
Also various performance characteristics graphs will have steps around the multiples of page sizes. People would find out anyway. (Although maybe the runtime detection is not a bad idea)
- londons_explore 1y agoJust like cache size. But when someone releases a new CPU with a larger or smaller cache, all old software continues to work. Secret page size would offer the same benefit.
- dataflow 1y agoCache line size would be a better example.
- Tuna-Fish 1y agoYup. And like with page sizes, the big problems with cache line sizes is not when people design things against a specific line size, but the (much more numerous) cases where they design something that only works well for a fixed size but they don't even know that, because they literally never thought about it, and it worked fine because every machine they used was similar. It doesn't matter what apis you were provided or what analysis you did, you don't know your software works with different hardware until you test it on it.