Description
Optional host controls for reducing benchmark placement noise.
Pin_Current_Thread
function Pin_Current_Thread (CPU : Natural) return Placement_Strength
Pin or affinity-tag the calling native thread. Linux applies strict CPU affinity; Darwin applies a scheduler affinity tag and is advisory. Call this from the thread that will execute the benchmark.
Parameters
- CPU
Zero-based logical CPU or Darwin affinity tag index.
Return value
Strength of the applied platform policy.
Raised exceptions
- Program_Error
If the platform rejects the request.
Placement_Strength
type Placement_Strength is (Advisory, Strict);
Strength of the placement policy applied by the host.
Enumeration literals
- Advisory
Placement is a scheduler hint rather than a hard binding.
- Strict
The calling thread is bound to the selected logical CPU.