sol_parser_sdk/logs/
perf_hints.rs

1//! 性能优化提示和内联函数
2
3/// likely - 告诉编译器条件大概率为真
4#[inline(always)]
5pub fn likely(condition: bool) -> bool {
6    #[cold]
7    fn cold() {}
8
9    if !condition {
10        cold();
11    }
12    condition
13}
14
15/// unlikely - 告诉编译器条件大概率为假
16#[inline(always)]
17pub fn unlikely(condition: bool) -> bool {
18    #[cold]
19    fn cold() {}
20
21    if condition {
22        cold();
23    }
24    condition
25}
26
27/// 预取数据到 CPU 缓存（读优化）
28///
29/// # Safety
30///
31/// `ptr` must be a valid pointer for the target platform to prefetch. The
32/// intrinsic does not dereference it, but callers must still only pass pointers
33/// derived from live allocations or documented platform-safe addresses.
34#[inline(always)]
35pub unsafe fn prefetch_read<T>(ptr: *const T) {
36    #[cfg(target_arch = "x86_64")]
37    {
38        use std::arch::x86_64::{_mm_prefetch, _MM_HINT_T0};
39        _mm_prefetch(ptr as *const i8, _MM_HINT_T0);
40    }
41}
42
43/// 预取数据到 CPU 缓存（写优化）
44///
45/// # Safety
46///
47/// `ptr` must be a valid pointer for the target platform to prefetch. The
48/// intrinsic does not dereference it, but callers must still only pass pointers
49/// derived from live allocations or documented platform-safe addresses.
50#[inline(always)]
51pub unsafe fn prefetch_write<T>(ptr: *const T) {
52    #[cfg(target_arch = "x86_64")]
53    {
54        use std::arch::x86_64::{_mm_prefetch, _MM_HINT_T1};
55        _mm_prefetch(ptr as *const i8, _MM_HINT_T1);
56    }
57}
sol_parser_sdk/logs/perf_hints.rs

sol_parser_sdk/logs/
perf_hints.rs
