Why a Lock Appeared in Lock-Free Code

What do you do when your code breaks and the only fix is to dig into the runtime below?

Matt Godbolt lives for that. Tile-based renderers, color-coded scanlines, zero-copy NICs—each story is a clue that leads past the abstraction to the real machine. He shares the rule that guides him: master your layer, learn the one below, and know the outline of the layer under that.

Matt Godbolt's journey proves the real breakthroughs are hideen behind the abstrations where you are comfortable and familiar.

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