At a 5.7 MHz pixel clock with 363 pixels per line, we get 15,702 lines per second (5,700,000 / 363 ≈ 15,702 Hz). With 262 lines per frame, that’s ~60 frames per second (15,702 / 262 ≈ 59.9 Hz). These timings fall within what a 15kHz arcade monitor can handle.
If you look at all of the JS glue code for the single call to console.log above, you’ll see that there is a lot of overhead. Engines have spent a lot of time optimizing this, and more work is underway. Yet this problem still exists. It doesn’t affect every workload, but it’s something every WebAssembly user needs to be careful about.
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在深度学习中，激活函数（Activation Function）是神经网络的灵魂。它不仅赋予网络非线性能力，还决定了训练的稳定性和模型性能。那么，激活函数到底是什么？为什么我们非用不可？有哪些经典函数？又该如何选择？
Артём Верейкин (Ночной линейный редактор)