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/*
* fcyc.h - prototypes for the routines in fcyc.c that estimate the
* time in CPU cycles used by a test function f
*
* Copyright (c) 2002, R. Bryant and D. O'Hallaron, All rights reserved.
* May not be used, modified, or copied without permission.
*
*/
/* The test function takes a generic pointer as input */
typedef void (*test_funct)(void *);
/* Compute number of cycles used by test function f */
double fcyc(test_funct f, void* argp);
/*********************************************************
* Set the various parameters used by measurement routines
*********************************************************/
/*
* set_fcyc_clear_cache - When set, will run code to clear cache
* before each measurement.
* Default = 0
*/
void set_fcyc_clear_cache(int clear);
/*
* set_fcyc_cache_size - Set size of cache to use when clearing cache
* Default = 1<<19 (512KB)
*/
void set_fcyc_cache_size(int bytes);
/*
* set_fcyc_cache_block - Set size of cache block
* Default = 32
*/
void set_fcyc_cache_block(int bytes);
/*
* set_fcyc_compensate- When set, will attempt to compensate for
* timer interrupt overhead
* Default = 0
*/
void set_fcyc_compensate(int compensate_arg);
/*
* set_fcyc_k - Value of K in K-best measurement scheme
* Default = 3
*/
void set_fcyc_k(int k);
/*
* set_fcyc_maxsamples - Maximum number of samples attempting to find
* K-best within some tolerance.
* When exceeded, just return best sample found.
* Default = 20
*/
void set_fcyc_maxsamples(int maxsamples_arg);
/*
* set_fcyc_epsilon - Tolerance required for K-best
* Default = 0.01
*/
void set_fcyc_epsilon(double epsilon_arg);
void deinit_fcyc(void);