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Discussion on: How to Add Buffering to a Reader / Writer in Zig

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kristoff profile image
Loris Cro Author

If the underlying stream is already buffered then of course adding more buffering will not improve things. One practical example that I've encountered today where buffering made a big difference is when serializing a struct into JSON.

I'm working on a piece of the Zig compiler that reads source code and automatically generates docs from it. The job mostly consists in collecting type information an then serializing it into a JSON file. The original code serialized (using std.json) directly into a File.Writer and took about 10s to do the job when run on the Zig standard library. After the change the serialization step took less than 1 second.