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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);