这是一个本人学习 csapp 的 learning 库
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

41 lines
1.3 KiB

/* Find number of cycles used by function that takes 2 arguments */
/* Function to be tested takes two integer arguments */
typedef int (*test_funct)(int, int);
/* Compute time used by function f */
double fcyc2(test_funct f, int param1, int param2, int clear_cache);
/********* These routines are used to help with the analysis *********/
/*
Parameters:
k: How many samples must be within epsilon for convergence
epsilon: What is tolerance
maxsamples: How many samples until give up?
*/
/* Full version of fcyc with control over parameters */
double fcyc2_full(test_funct f, int param1, int param2, int clear_cache,
int k, double epsilon, int maxsamples, int compensate);
/* Get current minimum */
double get_min();
/* What is convergence status for k minimum measurements within epsilon
Returns 0 if not converged, #samples if converged, and -1 if can't
reach convergence
*/
int has_converged(int k, double epsilon, int maxsamples);
/* What is error of current measurement */
double err(int k);
/************* Try other clocking methods *****************/
/* Full version that uses the time of day clock */
double fcyc2_full_tod(test_funct f, int param1, int param2, int clear_cache,
int k, double epsilon, int maxsamples, int compensate);
double fcyc2_tod(test_funct f, int param1, int param2, int clear_cache);