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C Struct Padding: Why Your 16-Byte Payload Becomes 32 Bytes

This story is from 2026-09-24. It is preserved in the archive; the latest stories are on the live feed.

C Struct Padding: Why Your 16-Byte Payload Becomes 32 Bytes LeetCode graph tricks are useless if you don't understand raw memory in C. I learned this the hard way in my Grind repo. I ran into a performance bottleneck where a seemingly small 16-byte data structure was causing double the expected L1…

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  1. 2026-09-24 00:06 · DEV Community — AI
    C Struct Padding: Why Your 16-Byte Payload Becomes 32 Bytes

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