8cf372c9b9
To reduce compile-times and avoid some overhead to binary size, this will modify some of our generic functions to use non-generic inner functions where possible. The inner functions are marked carefully with `#[inline(never)]` to prevent being inlined by LLVM at their callsites While looking for generic functions to optimize, I have also taken the opportunity to annotate public non-generic getters and setters with `#[inline]` to ensure that LLVM will inline them across crate boundaries. By default, only generic functions are automatically inlined, and only when enabling fat LTO are constant functions reliably inlined across crate boundaries.
27 lines
538 B
Rust
27 lines
538 B
Rust
// Copyright 2025 System76 <info@system76.com>
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// SPDX-License-Identifier: MPL-2.0
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use std::os::raw::c_int;
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const M_MMAP_THRESHOLD: c_int = -3;
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unsafe extern "C" {
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fn malloc_trim(pad: usize);
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fn mallopt(param: c_int, value: c_int) -> c_int;
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}
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#[inline]
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pub fn trim(pad: usize) {
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unsafe {
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malloc_trim(pad);
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}
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}
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/// Prevents glibc from hoarding memory via memory fragmentation.
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#[inline]
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pub fn limit_mmap_threshold(threshold: i32) {
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unsafe {
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mallopt(M_MMAP_THRESHOLD, threshold as c_int);
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}
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}
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