Make: Consistent -O2 setting

Author: ashvardanian

Cargo.toml

@@ -19,7 +19,7 @@ default = ["std"]
 std = []
 
 [profile.release]
-opt-level = 3     # Corresponds to -O3
+opt-level = 2     # Corresponds to -O2
 lto = true        # Enables Link Time Optimization for further optimizations
 codegen-units = 1 # May increase compilation time but optimizes further
 rpath = false     # On some systems, setting this to false can help with optimizations

build.rs

@@ -6,7 +6,7 @@ fn main() -> Result<(), cc::Error> {
         .file("c/lib.cpp")
         .include("include")
         .define("FU_ENABLE_NUMA", "0")
-        .opt_level(3) // Set optimization level to 2
+        .opt_level(2) // Optimize compiled C++ to -O2
         .warnings(false);
 
     // Platform-specific C++ standard flags

scripts/CMakeLists.txt

@@ -11,7 +11,7 @@ function (set_target_properties_for_fork_union_script target_name)
     # In release mode, enable optimizations
     if (CMAKE_BUILD_TYPE STREQUAL "Release")
         message(STATUS "Enabling optimizations for ${target_name}")
-        target_compile_options(${target_name} PRIVATE -O3)
+        target_compile_options(${target_name} PRIVATE -O2)
     endif ()
 
     # if we're not in Release mode