_prefetch
9/7/2007
This function loads the data cache from main memory, if possible.
Syntax
void __cdecl __prefetch(
void *
);
Parameters
- *
[in] Pointer to cache line.
Return Value
None.
Remarks
If the requested functionality is available on the target hardware platform, this function provides a hint to the system that memory at or near the given location may be accessed soon. Some systems may choose to optimize for that memory access pattern, increasing runtime performance. However, from the C++ language point of view, the function has no observable effect, and may do nothing at all.
Requirements
| Routine | Required header | Architecture |
|---|---|---|
_prefetch |
<cmnintrin.h> |
x86, ARM, SH-4, MIPS |