Enable codegen-units = 1 for the Release profile

[zamazan4ik]

Is there an existing issue for this?

• I have searched the existing issues.

Describe the solution you'd like

I decided to test enabling codegen-units = 1 in the Release profile to see - can it improve Sniffnet somehow or not, e.g. from the binary size perspective. According to my tests (Fedora 41, Rustc 1.82, the latest Sniffnet version for the moment):

• Current Release profile: 39 Mib
• Release + codegen-units = 1: 38 Mib

Build time was also somehow improved. The clean build takes 2m 32s instead of 2m 48s on my AMD Ryzen 9 5900x.

Is your feature request related to a problem?

It's not a problem - just a performance improvement piece of advice for additional optimization.

[GyulyVGC]

Hey thanks for your report, but I don't think in this case the improvements are enough to justify this setting, which in most cases could lead to slower build times.