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Making Rust binaries smaller by default (kobzol.github.io)

submitted 10 months ago by [email protected] to c/[email protected]

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Upto 90% for hellworld

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[–] [email protected] 2 points 10 months ago* (last edited 10 months ago) (1 children)

In fact, this new default will be used for any profile which does not enable debuginfo anywhere in its dependency chain, not just for the release profile.

This is the sentence that tripped me up. But on rereading I'm assuming the debug profile does enable this.

[–] [email protected] 3 points 10 months ago (1 children)

Yeah, definitely :)

The default dev profile is defined as:

[profile.dev]
opt-level = 0
debug = true
split-debuginfo = '...'  # Platform-specific.
strip = "none"
debug-assertions = true
overflow-checks = true
lto = false
panic = 'unwind'
incremental = true
codegen-units = 256
rpath = false

You can find more information in the cargo book page on profiles

[–] [email protected] 1 points 10 months ago

I knew I had to be missing something. Thanks for the insight mate.