About disabled Link-Time Optimization (LTO)

[zamazan4ik]

Hi!

I found that Mistral devs disabled LTO in this PR: #741 - before this PR LTO was enabled for the project. I wonder - what was the reason for such a decision? I tried to find any information in the commit history but with no success.

I am asking about it since according to my local tests with the latest Mistral, on Fedora 41 + Rust 1.83 I see at least noticeable binary size improvements with enabling LTO by lto = true (all other Release settings remain the same):

• mistral-server: from 54 Mib to 44 Mib
• libmistrals.so: from 39 Mib to 31 Mib

I haven't performed performance measurements yet but I expect at least the same performance as before enabling LTO (or maybe even some improvements).

Thank you.