# Zig build run is 10x faster than compiled binary?

**URL:** <https://ziggit.dev/t/zig-build-run-is-10x-faster-than-compiled-binary/3446>\
**Category:** Help\
**Tags:** compiler, build-system\
**Created:** [March 3, 2024, 5:44pm UTC](https://ziggit.dev/t/zig-build-run-is-10x-faster-than-compiled-binary/3446 "2024-03-03T17:44:59Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![matklad](https://ziggit.dev/user_avatar/ziggit.dev/matklad/32/2462_2.png) [@matklad](https://ziggit.dev/u/matklad)\
**Post date:** [March 5, 2024, 12:27am UTC](https://ziggit.dev/t/zig-build-run-is-10x-faster-than-compiled-binary/3446/9 "2024-03-05T00:27:53Z")

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> [@andrewrk](#):
>
> Looks like you’re doing 1 syscall per byte read?

I’d say `readByte` is a flawed API to have on a Reader. While you _technically_ can read a byte-at-time from something like TCP socket, it just doesn’t make sense. The reader should only allow reading into a slice.

Byte-oriented API belongs to a buffered reader.

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