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