Any round of CPU into a straight round

// Any round of the entire cup straight forward
Static void getusage (float level)
{
Performancecounter P = new performancecounter ("processor", "% processor time", "_ total ");
If (P = NULL)
{
Return;
}

While (true)
{
If (P. nextvalue ()> level)
{
System. Threading. thread. Sleep (20 );
}
}

}

PS. The program displays 50% on the current machine.

 

/// <Summary>
///
/// </Summary>
/// <Param name = "cuphz"> cup Hz, for example: 2.53 </param>
/// <Param name = "ratio"> CPU usage percentage, for example, 0.8 </param>
Static void getusage_1 (float cuphz, float ratio)
{
Double R = (1-ratio) * 10;
Double Hz = (cuphz * Math. Pow (10d, 9d) * 2)/R;
For (;;)
{
For (INT I = 0; I <Hz/1000; I ++)
{

}

System. Threading. thread. Sleep (15 );
}
}
PS. Accuracy for 0.5 (50%) or above. You need to know the Working Quota of the local cup.