--- /dev/null
+/* Speed measuring program.
+
+Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
+
+/* Usage message is in the code below, run with no arguments to print it.
+ See README for interesting applications.
+
+ To add a new routine foo(), create a speed_foo() function in the style of
+ the existing ones and add an entry in the routine[] array. Put FLAG_R if
+ speed_foo() wants an "r" parameter.
+
+ The routines don't have help messages or descriptions, but most have
+ suggestive names. See the source code for full details.
+
+*/
+
+#include "config.h"
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if HAVE_UNISTD_H
+#include <unistd.h> /* for getpid, R_OK */
+#endif
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h> /* for struct timeval */
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+#if HAVE_SYS_RESOURCE_H
+#include <sys/resource.h> /* for getrusage() */
+#endif
+
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "longlong.h" /* for the benefit of speed-many.c */
+#include "tests.h"
+#include "speed.h"
+
+
+#if !HAVE_DECL_OPTARG
+extern char *optarg;
+extern int optind, opterr;
+#endif
+
+#if !HAVE_STRTOUL
+#define strtoul(p,e,b) (unsigned long) strtol(p,e,b)
+#endif
+
+#ifdef SPEED_EXTRA_PROTOS
+SPEED_EXTRA_PROTOS
+#endif
+#ifdef SPEED_EXTRA_PROTOS2
+SPEED_EXTRA_PROTOS2
+#endif
+
+
+#define MPN_FILL(ptr, size, n) \
+ do { \
+ mp_size_t __i; \
+ ASSERT ((size) >= 0); \
+ for (__i = 0; __i < (size); __i++) \
+ (ptr)[__i] = (n); \
+ } while (0)
+
+
+#if BITS_PER_MP_LIMB == 32
+#define GMP_NUMB_0xAA (CNST_LIMB(0xAAAAAAAA) & GMP_NUMB_MASK)
+#endif
+#if BITS_PER_MP_LIMB == 64
+#define GMP_NUMB_0xAA (CNST_LIMB(0xAAAAAAAAAAAAAAAA) & GMP_NUMB_MASK)
+#endif
+
+
+#define CMP_ABSOLUTE 1
+#define CMP_RATIO 2
+#define CMP_DIFFERENCE 3
+#define CMP_DIFFPREV 4
+int option_cmp = CMP_ABSOLUTE;
+
+#define UNIT_SECONDS 1
+#define UNIT_CYCLES 2
+#define UNIT_CYCLESPERLIMB 3
+int option_unit = UNIT_SECONDS;
+
+#define DATA_RANDOM 1
+#define DATA_RANDOM2 2
+#define DATA_ZEROS 3
+#define DATA_AAS 4
+#define DATA_FFS 5
+#define DATA_2FD 6
+int option_data = DATA_RANDOM;
+
+int option_square = 0;
+double option_factor = 0.0;
+mp_size_t option_step = 1;
+int option_gnuplot = 0;
+char *option_gnuplot_basename;
+struct size_array_t {
+ mp_size_t start, end;
+} *size_array = NULL;
+mp_size_t size_num = 0;
+mp_size_t size_allocnum = 0;
+int option_resource_usage = 0;
+long option_seed = 123456789;
+
+struct speed_params sp;
+
+#define COLUMN_WIDTH 13 /* for the free-form output */
+
+#define FLAG_R (1<<0) /* require ".r" */
+#define FLAG_R_OPTIONAL (1<<1) /* optional ".r" */
+#define FLAG_RSIZE (1<<2)
+#define FLAG_NODATA (1<<3) /* don't alloc xp, yp */
+
+const struct routine_t {
+ /* constants */
+ const char *name;
+ speed_function_t fun;
+ int flag;
+} routine[] = {
+
+ { "noop", speed_noop },
+ { "noop_wxs", speed_noop_wxs },
+ { "noop_wxys", speed_noop_wxys },
+
+ { "mpn_add_n", speed_mpn_add_n, FLAG_R_OPTIONAL },
+ { "mpn_sub_n", speed_mpn_sub_n, FLAG_R_OPTIONAL },
+
+#if HAVE_NATIVE_mpn_addsub_n
+ { "mpn_addsub_n", speed_mpn_addsub_n, FLAG_R_OPTIONAL },
+#endif
+
+ { "mpn_addmul_1", speed_mpn_addmul_1, FLAG_R },
+ { "mpn_submul_1", speed_mpn_submul_1, FLAG_R },
+#if HAVE_NATIVE_mpn_addmul_2
+ { "mpn_addmul_2", speed_mpn_addmul_2, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_3
+ { "mpn_addmul_3", speed_mpn_addmul_3, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_4
+ { "mpn_addmul_4", speed_mpn_addmul_4, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_5
+ { "mpn_addmul_5", speed_mpn_addmul_5, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_6
+ { "mpn_addmul_6", speed_mpn_addmul_6, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_7
+ { "mpn_addmul_7", speed_mpn_addmul_7, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_addmul_8
+ { "mpn_addmul_8", speed_mpn_addmul_8, FLAG_R_OPTIONAL },
+#endif
+ { "mpn_mul_1", speed_mpn_mul_1, FLAG_R },
+ { "mpn_mul_1_inplace", speed_mpn_mul_1_inplace, FLAG_R },
+#if HAVE_NATIVE_mpn_mul_2
+ { "mpn_mul_2", speed_mpn_mul_2, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_mul_3
+ { "mpn_mul_3", speed_mpn_mul_3, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_mul_4
+ { "mpn_mul_4", speed_mpn_mul_4, FLAG_R_OPTIONAL },
+#endif
+
+ { "mpn_divrem_1", speed_mpn_divrem_1, FLAG_R },
+ { "mpn_divrem_1f", speed_mpn_divrem_1f, FLAG_R },
+#if HAVE_NATIVE_mpn_divrem_1c
+ { "mpn_divrem_1c", speed_mpn_divrem_1c, FLAG_R },
+ { "mpn_divrem_1cf", speed_mpn_divrem_1cf,FLAG_R },
+#endif
+ { "mpn_mod_1", speed_mpn_mod_1, FLAG_R },
+#if HAVE_NATIVE_mpn_mod_1c
+ { "mpn_mod_1c", speed_mpn_mod_1c, FLAG_R },
+#endif
+ { "mpn_preinv_divrem_1", speed_mpn_preinv_divrem_1, FLAG_R },
+ { "mpn_preinv_divrem_1f", speed_mpn_preinv_divrem_1f, FLAG_R },
+ { "mpn_preinv_mod_1", speed_mpn_preinv_mod_1, FLAG_R },
+
+ { "mpn_divrem_1_div", speed_mpn_divrem_1_div, FLAG_R },
+ { "mpn_divrem_1_inv", speed_mpn_divrem_1_inv, FLAG_R },
+ { "mpn_divrem_1f_div", speed_mpn_divrem_1f_div, FLAG_R },
+ { "mpn_divrem_1f_inv", speed_mpn_divrem_1f_inv, FLAG_R },
+ { "mpn_mod_1_div", speed_mpn_mod_1_div, FLAG_R },
+ { "mpn_mod_1_inv", speed_mpn_mod_1_inv, FLAG_R },
+
+ { "mpn_divrem_2", speed_mpn_divrem_2, },
+ { "mpn_divrem_2_div", speed_mpn_divrem_2_div, },
+ { "mpn_divrem_2_inv", speed_mpn_divrem_2_inv, },
+
+ { "mpn_divexact_1", speed_mpn_divexact_1, FLAG_R },
+ { "mpn_divexact_by3", speed_mpn_divexact_by3 },
+
+ { "mpn_bdiv_dbm1c", speed_mpn_bdiv_dbm1c, FLAG_R_OPTIONAL },
+
+#if HAVE_NATIVE_mpn_modexact_1_odd
+ { "mpn_modexact_1_odd", speed_mpn_modexact_1_odd, FLAG_R },
+#endif
+ { "mpn_modexact_1c_odd", speed_mpn_modexact_1c_odd, FLAG_R },
+
+#if GMP_NUMB_BITS % 4 == 0
+ { "mpn_mod_34lsub1", speed_mpn_mod_34lsub1 },
+#endif
+
+ { "mpn_dc_tdiv_qr", speed_mpn_dc_tdiv_qr },
+ { "mpn_dc_divrem_n", speed_mpn_dc_divrem_n },
+ { "mpn_dc_divrem_sb", speed_mpn_dc_divrem_sb },
+ { "mpn_dc_divrem_sb_div", speed_mpn_dc_divrem_sb_div },
+ { "mpn_dc_divrem_sb_inv", speed_mpn_dc_divrem_sb_inv },
+
+ { "mpn_sb_divrem_m3", speed_mpn_sb_divrem_m3 },
+ { "mpn_sb_divrem_m3_div", speed_mpn_sb_divrem_m3_div },
+ { "mpn_sb_divrem_m3_inv", speed_mpn_sb_divrem_m3_inv },
+
+ { "mpn_lshift", speed_mpn_lshift, FLAG_R },
+ { "mpn_rshift", speed_mpn_rshift, FLAG_R },
+
+ { "mpn_and_n", speed_mpn_and_n, FLAG_R_OPTIONAL },
+ { "mpn_andn_n", speed_mpn_andn_n, FLAG_R_OPTIONAL },
+ { "mpn_nand_n", speed_mpn_nand_n, FLAG_R_OPTIONAL },
+ { "mpn_ior_n", speed_mpn_ior_n, FLAG_R_OPTIONAL },
+ { "mpn_iorn_n", speed_mpn_iorn_n, FLAG_R_OPTIONAL },
+ { "mpn_nior_n", speed_mpn_nior_n, FLAG_R_OPTIONAL },
+ { "mpn_xor_n", speed_mpn_xor_n, FLAG_R_OPTIONAL },
+ { "mpn_xnor_n", speed_mpn_xnor_n, FLAG_R_OPTIONAL },
+ { "mpn_com_n", speed_mpn_com_n },
+
+ { "mpn_popcount", speed_mpn_popcount },
+ { "mpn_hamdist", speed_mpn_hamdist },
+
+ { "mpn_matrix22_mul", speed_mpn_matrix22_mul },
+
+ { "mpn_hgcd", speed_mpn_hgcd },
+ { "mpn_hgcd_lehmer", speed_mpn_hgcd_lehmer },
+
+ { "mpn_gcd_1", speed_mpn_gcd_1, FLAG_R_OPTIONAL },
+ { "mpn_gcd_1N", speed_mpn_gcd_1N, FLAG_R_OPTIONAL },
+
+ { "mpn_gcd", speed_mpn_gcd },
+#if 0
+ { "mpn_gcd_binary", speed_mpn_gcd_binary },
+ { "mpn_gcd_accel", speed_mpn_gcd_accel },
+ { "find_a", speed_find_a, FLAG_NODATA },
+#endif
+
+ { "mpn_gcdext", speed_mpn_gcdext },
+ { "mpn_gcdext_single", speed_mpn_gcdext_single },
+ { "mpn_gcdext_double", speed_mpn_gcdext_double },
+ { "mpn_gcdext_one_single", speed_mpn_gcdext_one_single },
+ { "mpn_gcdext_one_double", speed_mpn_gcdext_one_double },
+#if 0
+ { "mpn_gcdext_lehmer", speed_mpn_gcdext_lehmer },
+#endif
+ { "mpz_jacobi", speed_mpz_jacobi },
+ { "mpn_jacobi_base", speed_mpn_jacobi_base },
+ { "mpn_jacobi_base_1", speed_mpn_jacobi_base_1 },
+ { "mpn_jacobi_base_2", speed_mpn_jacobi_base_2 },
+ { "mpn_jacobi_base_3", speed_mpn_jacobi_base_3 },
+
+ { "mpn_mul", speed_mpn_mul, FLAG_R_OPTIONAL },
+ { "mpn_mul_basecase", speed_mpn_mul_basecase,FLAG_R_OPTIONAL },
+ { "mpn_sqr_basecase", speed_mpn_sqr_basecase },
+#if HAVE_NATIVE_mpn_sqr_diagonal
+ { "mpn_sqr_diagonal", speed_mpn_sqr_diagonal },
+#endif
+
+ { "mpn_mul_n", speed_mpn_mul_n },
+ { "mpn_sqr_n", speed_mpn_sqr_n },
+
+ { "mpn_kara_mul_n", speed_mpn_kara_mul_n },
+ { "mpn_kara_sqr_n", speed_mpn_kara_sqr_n },
+ { "mpn_toom3_mul_n", speed_mpn_toom3_mul_n },
+ { "mpn_toom3_sqr_n", speed_mpn_toom3_sqr_n },
+ { "mpn_mul_fft_full", speed_mpn_mul_fft_full },
+ { "mpn_mul_fft_full_sqr", speed_mpn_mul_fft_full_sqr },
+
+ { "mpn_mul_fft", speed_mpn_mul_fft, FLAG_R_OPTIONAL },
+ { "mpn_mul_fft_sqr", speed_mpn_mul_fft_sqr, FLAG_R_OPTIONAL },
+
+ { "mpn_mullow_n", speed_mpn_mullow_n },
+ { "mpn_mullow_basecase", speed_mpn_mullow_basecase},
+
+ { "mpn_get_str", speed_mpn_get_str, FLAG_R_OPTIONAL },
+
+ { "mpn_set_str", speed_mpn_set_str, FLAG_R_OPTIONAL },
+ { "mpn_set_str_basecase",speed_mpn_bc_set_str, FLAG_R_OPTIONAL },
+
+ { "mpn_sqrtrem", speed_mpn_sqrtrem },
+ { "mpn_rootrem", speed_mpn_rootrem, FLAG_R },
+
+ { "mpn_fib2_ui", speed_mpn_fib2_ui, FLAG_NODATA },
+ { "mpz_fib_ui", speed_mpz_fib_ui, FLAG_NODATA },
+ { "mpz_fib2_ui", speed_mpz_fib2_ui, FLAG_NODATA },
+ { "mpz_lucnum_ui", speed_mpz_lucnum_ui, FLAG_NODATA },
+ { "mpz_lucnum2_ui", speed_mpz_lucnum2_ui, FLAG_NODATA },
+
+ { "mpz_add", speed_mpz_add },
+ { "mpz_bin_uiui", speed_mpz_bin_uiui, FLAG_NODATA | FLAG_R_OPTIONAL },
+ { "mpz_fac_ui", speed_mpz_fac_ui, FLAG_NODATA },
+ { "mpz_powm", speed_mpz_powm },
+ { "mpz_powm_mod", speed_mpz_powm_mod },
+ { "mpz_powm_redc", speed_mpz_powm_redc },
+ { "mpz_powm_ui", speed_mpz_powm_ui, FLAG_R_OPTIONAL },
+
+ { "mpz_mod", speed_mpz_mod },
+ { "mpn_redc_1", speed_mpn_redc_1 },
+
+ { "MPN_COPY", speed_MPN_COPY },
+ { "MPN_COPY_INCR", speed_MPN_COPY_INCR },
+ { "MPN_COPY_DECR", speed_MPN_COPY_DECR },
+ { "memcpy", speed_memcpy },
+#if HAVE_NATIVE_mpn_copyi
+ { "mpn_copyi", speed_mpn_copyi },
+#endif
+#if HAVE_NATIVE_mpn_copyd
+ { "mpn_copyd", speed_mpn_copyd },
+#endif
+#if HAVE_NATIVE_mpn_addlsh1_n
+ { "mpn_addlsh1_n", speed_mpn_addlsh1_n },
+#endif
+#if HAVE_NATIVE_mpn_sublsh1_n
+ { "mpn_sublsh1_n", speed_mpn_sublsh1_n },
+#endif
+#if HAVE_NATIVE_mpn_rsh1add_n
+ { "mpn_rsh1add_n", speed_mpn_rsh1add_n },
+#endif
+#if HAVE_NATIVE_mpn_rsh1sub_n
+ { "mpn_rsh1sub_n", speed_mpn_rsh1sub_n },
+#endif
+
+ { "MPN_ZERO", speed_MPN_ZERO },
+
+ { "binvert_limb", speed_binvert_limb, FLAG_NODATA },
+ { "binvert_limb_mul1", speed_binvert_limb_mul1, FLAG_NODATA },
+ { "binvert_limb_loop", speed_binvert_limb_loop, FLAG_NODATA },
+ { "binvert_limb_cond", speed_binvert_limb_cond, FLAG_NODATA },
+ { "binvert_limb_arith", speed_binvert_limb_arith, FLAG_NODATA },
+
+ { "malloc_free", speed_malloc_free },
+ { "malloc_realloc_free", speed_malloc_realloc_free },
+ { "gmp_allocate_free", speed_gmp_allocate_free },
+ { "gmp_allocate_reallocate_free", speed_gmp_allocate_reallocate_free },
+ { "mpz_init_clear", speed_mpz_init_clear },
+ { "mpq_init_clear", speed_mpq_init_clear },
+ { "mpf_init_clear", speed_mpf_init_clear },
+ { "mpz_init_realloc_clear", speed_mpz_init_realloc_clear },
+
+ { "umul_ppmm", speed_umul_ppmm, FLAG_R_OPTIONAL },
+#if HAVE_NATIVE_mpn_umul_ppmm
+ { "mpn_umul_ppmm", speed_mpn_umul_ppmm, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_umul_ppmm_r
+ { "mpn_umul_ppmm_r", speed_mpn_umul_ppmm_r, FLAG_R_OPTIONAL },
+#endif
+
+ { "count_leading_zeros", speed_count_leading_zeros, FLAG_NODATA | FLAG_R_OPTIONAL },
+ { "count_trailing_zeros", speed_count_trailing_zeros, FLAG_NODATA | FLAG_R_OPTIONAL },
+
+ { "udiv_qrnnd", speed_udiv_qrnnd, FLAG_R_OPTIONAL },
+ { "udiv_qrnnd_preinv1", speed_udiv_qrnnd_preinv1, FLAG_R_OPTIONAL },
+ { "udiv_qrnnd_preinv2", speed_udiv_qrnnd_preinv2, FLAG_R_OPTIONAL },
+ { "udiv_qrnnd_c", speed_udiv_qrnnd_c, FLAG_R_OPTIONAL },
+#if HAVE_NATIVE_mpn_udiv_qrnnd
+ { "mpn_udiv_qrnnd", speed_mpn_udiv_qrnnd, FLAG_R_OPTIONAL },
+#endif
+#if HAVE_NATIVE_mpn_udiv_qrnnd_r
+ { "mpn_udiv_qrnnd_r", speed_mpn_udiv_qrnnd_r, FLAG_R_OPTIONAL },
+#endif
+ { "invert_limb", speed_invert_limb, FLAG_R_OPTIONAL },
+
+ { "operator_div", speed_operator_div, FLAG_R_OPTIONAL },
+ { "operator_mod", speed_operator_mod, FLAG_R_OPTIONAL },
+
+ { "gmp_randseed", speed_gmp_randseed, FLAG_R_OPTIONAL },
+ { "gmp_randseed_ui", speed_gmp_randseed_ui, FLAG_R_OPTIONAL | FLAG_NODATA },
+ { "mpz_urandomb", speed_mpz_urandomb, FLAG_R_OPTIONAL | FLAG_NODATA },
+
+#ifdef SPEED_EXTRA_ROUTINES
+ SPEED_EXTRA_ROUTINES
+#endif
+#ifdef SPEED_EXTRA_ROUTINES2
+ SPEED_EXTRA_ROUTINES2
+#endif
+};
+
+
+struct choice_t {
+ const struct routine_t *p;
+ mp_limb_t r;
+ double scale;
+ double time;
+ int no_time;
+ double prev_time;
+ const char *name;
+};
+struct choice_t *choice;
+int num_choices = 0;
+
+
+void
+data_fill (mp_ptr ptr, mp_size_t size)
+{
+ switch (option_data) {
+ case DATA_RANDOM:
+ mpn_random (ptr, size);
+ break;
+ case DATA_RANDOM2:
+ mpn_random2 (ptr, size);
+ break;
+ case DATA_ZEROS:
+ MPN_ZERO (ptr, size);
+ break;
+ case DATA_AAS:
+ MPN_FILL (ptr, size, GMP_NUMB_0xAA);
+ break;
+ case DATA_FFS:
+ MPN_FILL (ptr, size, GMP_NUMB_MAX);
+ break;
+ case DATA_2FD:
+ MPN_FILL (ptr, size, GMP_NUMB_MAX);
+ ptr[0] -= 2;
+ break;
+ default:
+ abort();
+ /*NOTREACHED*/
+ }
+}
+
+/* The code here handling the various combinations of output options isn't
+ too attractive, but it works and is fairly clean. */
+
+#define SIZE_TO_DIVISOR(n) \
+ (option_square == 1 ? (n)*(n) \
+ : option_square == 2 ? (n)*((n)+1)/2 \
+ : (n))
+
+void
+run_one (FILE *fp, struct speed_params *s, mp_size_t prev_size)
+{
+ const char *first_open_fastest, *first_open_notfastest, *first_close;
+ int i, fastest, want_data;
+ double fastest_time;
+ TMP_DECL;
+
+ TMP_MARK;
+
+ /* allocate data, unless all routines are NODATA */
+ want_data = 0;
+ for (i = 0; i < num_choices; i++)
+ want_data |= ((choice[i].p->flag & FLAG_NODATA) == 0);
+
+ if (want_data)
+ {
+ SPEED_TMP_ALLOC_LIMBS (sp.xp, s->size, s->align_xp);
+ SPEED_TMP_ALLOC_LIMBS (sp.yp, s->size, s->align_yp);
+
+ data_fill (s->xp, s->size);
+ data_fill (s->yp, s->size);
+ }
+ else
+ {
+ sp.xp = NULL;
+ sp.yp = NULL;
+ }
+
+ if (prev_size == -1 && option_cmp == CMP_DIFFPREV)
+ {
+ first_open_fastest = "(#";
+ first_open_notfastest = " (";
+ first_close = ")";
+ }
+ else
+ {
+ first_open_fastest = "#";
+ first_open_notfastest = " ";
+ first_close = "";
+ }
+
+ fastest = -1;
+ fastest_time = -1.0;
+ for (i = 0; i < num_choices; i++)
+ {
+ s->r = choice[i].r;
+ choice[i].time = speed_measure (choice[i].p->fun, s);
+ choice[i].no_time = (choice[i].time == -1.0);
+ if (! choice[i].no_time)
+ choice[i].time *= choice[i].scale;
+
+ /* Apply the effect of CMP_DIFFPREV, but the new choice[i].prev_time
+ is before any differences. */
+ {
+ double t;
+ t = choice[i].time;
+ if (t != -1.0 && option_cmp == CMP_DIFFPREV && prev_size != -1)
+ {
+ if (choice[i].prev_time == -1.0)
+ choice[i].no_time = 1;
+ else
+ choice[i].time = choice[i].time - choice[i].prev_time;
+ }
+ choice[i].prev_time = t;
+ }
+
+ if (choice[i].no_time)
+ continue;
+
+ /* Look for the fastest after CMP_DIFFPREV has been applied, but
+ before CMP_RATIO or CMP_DIFFERENCE. There's only a fastest shown
+ if there's more than one routine. */
+ if (num_choices > 1 && (fastest == -1 || choice[i].time < fastest_time))
+ {
+ fastest = i;
+ fastest_time = choice[i].time;
+ }
+
+ if (option_cmp == CMP_DIFFPREV)
+ {
+ /* Conversion for UNIT_CYCLESPERLIMB differs in CMP_DIFFPREV. */
+ if (option_unit == UNIT_CYCLES)
+ choice[i].time /= speed_cycletime;
+ else if (option_unit == UNIT_CYCLESPERLIMB)
+ {
+ if (prev_size == -1)
+ choice[i].time /= speed_cycletime;
+ else
+ choice[i].time /= (speed_cycletime
+ * (SIZE_TO_DIVISOR(s->size)
+ - SIZE_TO_DIVISOR(prev_size)));
+ }
+ }
+ else
+ {
+ if (option_unit == UNIT_CYCLES)
+ choice[i].time /= speed_cycletime;
+ else if (option_unit == UNIT_CYCLESPERLIMB)
+ choice[i].time /= (speed_cycletime * SIZE_TO_DIVISOR(s->size));
+
+ if (option_cmp == CMP_RATIO && i > 0)
+ {
+ /* A ratio isn't affected by the units chosen. */
+ if (choice[0].no_time || choice[0].time == 0.0)
+ choice[i].no_time = 1;
+ else
+ choice[i].time /= choice[0].time;
+ }
+ else if (option_cmp == CMP_DIFFERENCE && i > 0)
+ {
+ if (choice[0].no_time)
+ {
+ choice[i].no_time = 1;
+ continue;
+ }
+ choice[i].time -= choice[0].time;
+ }
+ }
+ }
+
+ if (option_gnuplot)
+ {
+ /* In CMP_DIFFPREV, don't print anything for the first size, start
+ with the second where an actual difference is available.
+
+ In CMP_RATIO, print the first column as 1.0.
+
+ The 9 decimals printed is much more than the expected precision of
+ the measurements actually. */
+
+ if (! (option_cmp == CMP_DIFFPREV && prev_size == -1))
+ {
+ fprintf (fp, "%-6ld ", s->size);
+ for (i = 0; i < num_choices; i++)
+ fprintf (fp, " %.9e",
+ choice[i].no_time ? 0.0
+ : (option_cmp == CMP_RATIO && i == 0) ? 1.0
+ : choice[i].time);
+ fprintf (fp, "\n");
+ }
+ }
+ else
+ {
+ fprintf (fp, "%-6ld ", s->size);
+ for (i = 0; i < num_choices; i++)
+ {
+ char buf[128];
+ int decimals;
+
+ if (choice[i].no_time)
+ {
+ fprintf (fp, " %*s", COLUMN_WIDTH, "n/a");
+ }
+ else
+ {if (option_unit == UNIT_CYCLESPERLIMB
+ || (option_cmp == CMP_RATIO && i > 0))
+ decimals = 4;
+ else if (option_unit == UNIT_CYCLES)
+ decimals = 2;
+ else
+ decimals = 9;
+
+ sprintf (buf, "%s%.*f%s",
+ i == fastest ? first_open_fastest : first_open_notfastest,
+ decimals, choice[i].time, first_close);
+ fprintf (fp, " %*s", COLUMN_WIDTH, buf);
+ }
+ }
+ fprintf (fp, "\n");
+ }
+
+ TMP_FREE;
+}
+
+void
+run_all (FILE *fp)
+{
+ mp_size_t prev_size;
+ int i;
+ TMP_DECL;
+
+ TMP_MARK;
+ SPEED_TMP_ALLOC_LIMBS (sp.xp_block, SPEED_BLOCK_SIZE, sp.align_xp);
+ SPEED_TMP_ALLOC_LIMBS (sp.yp_block, SPEED_BLOCK_SIZE, sp.align_yp);
+
+ data_fill (sp.xp_block, SPEED_BLOCK_SIZE);
+ data_fill (sp.yp_block, SPEED_BLOCK_SIZE);
+
+ for (i = 0; i < size_num; i++)
+ {
+ sp.size = size_array[i].start;
+ prev_size = -1;
+ for (;;)
+ {
+ mp_size_t step;
+
+ if (option_data == DATA_2FD && sp.size >= 2)
+ sp.xp[sp.size-1] = 2;
+
+ run_one (fp, &sp, prev_size);
+ prev_size = sp.size;
+
+ if (option_data == DATA_2FD && sp.size >= 2)
+ sp.xp[sp.size-1] = MP_LIMB_T_MAX;
+
+ if (option_factor != 0.0)
+ {
+ step = (mp_size_t) (sp.size * option_factor - sp.size);
+ if (step < 1)
+ step = 1;
+ }
+ else
+ step = 1;
+ if (step < option_step)
+ step = option_step;
+
+ sp.size += step;
+ if (sp.size > size_array[i].end)
+ break;
+ }
+ }
+
+ TMP_FREE;
+}
+
+
+FILE *
+fopen_for_write (const char *filename)
+{
+ FILE *fp;
+ if ((fp = fopen (filename, "w")) == NULL)
+ {
+ fprintf (stderr, "Cannot create %s\n", filename);
+ exit(1);
+ }
+ return fp;
+}
+
+void
+fclose_written (FILE *fp, const char *filename)
+{
+ int err;
+
+ err = ferror (fp);
+ err |= fclose (fp);
+
+ if (err)
+ {
+ fprintf (stderr, "Error writing %s\n", filename);
+ exit(1);
+ }
+}
+
+
+void
+run_gnuplot (int argc, char *argv[])
+{
+ char *plot_filename;
+ char *data_filename;
+ FILE *fp;
+ int i;
+
+ plot_filename = (char *) (*__gmp_allocate_func)
+ (strlen (option_gnuplot_basename) + 20);
+ data_filename = (char *) (*__gmp_allocate_func)
+ (strlen (option_gnuplot_basename) + 20);
+
+ sprintf (plot_filename, "%s.gnuplot", option_gnuplot_basename);
+ sprintf (data_filename, "%s.data", option_gnuplot_basename);
+
+ fp = fopen_for_write (plot_filename);
+
+ fprintf (fp, "# Generated with:\n");
+ fprintf (fp, "#");
+ for (i = 0; i < argc; i++)
+ fprintf (fp, " %s", argv[i]);
+ fprintf (fp, "\n");
+ fprintf (fp, "\n");
+
+ fprintf (fp, "reset\n");
+
+ /* Putting the key at the top left is usually good, and you can change it
+ interactively if it's not. */
+ fprintf (fp, "set key left\n");
+
+ /* designed to make it possible to see crossovers easily */
+ fprintf (fp, "set data style lines\n");
+
+ fprintf (fp, "plot ");
+ for (i = 0; i < num_choices; i++)
+ {
+ fprintf (fp, " \"%s\" using 1:%d", data_filename, i+2);
+ fprintf (fp, " title \"%s\"", choice[i].name);
+
+ if (i != num_choices-1)
+ fprintf (fp, ", \\");
+ fprintf (fp, "\n");
+ }
+
+ fprintf (fp, "load \"-\"\n");
+ fclose_written (fp, plot_filename);
+
+ fp = fopen_for_write (data_filename);
+
+ /* Unbuffered so you can see where the program was up to if it crashes or
+ you kill it. */
+ setbuf (fp, NULL);
+
+ run_all (fp);
+ fclose_written (fp, data_filename);
+}
+
+
+/* Return a limb with n many one bits (starting from the least significant) */
+
+#define LIMB_ONES(n) \
+ ((n) == BITS_PER_MP_LIMB ? MP_LIMB_T_MAX \
+ : (n) == 0 ? CNST_LIMB(0) \
+ : (CNST_LIMB(1) << (n)) - 1)
+
+mp_limb_t
+r_string (const char *s)
+{
+ const char *s_orig = s;
+ long n;
+
+ if (strcmp (s, "aas") == 0)
+ return GMP_NUMB_0xAA;
+
+ {
+ mpz_t z;
+ mp_limb_t l;
+ int set, siz;
+
+ mpz_init (z);
+ set = mpz_set_str (z, s, 0);
+ siz = SIZ(z);
+ l = (siz == 0 ? 0 : siz > 0 ? PTR(z)[0] : -PTR(z)[0]);
+ mpz_clear (z);
+ if (set == 0)
+ {
+ if (siz > 1 || siz < -1)
+ printf ("Warning, r parameter %s truncated to %d bits\n",
+ s_orig, BITS_PER_MP_LIMB);
+ return l;
+ }
+ }
+
+ if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X'))
+ n = strtoul (s+2, (char **) &s, 16);
+ else
+ n = strtol (s, (char **) &s, 10);
+
+ if (strcmp (s, "bits") == 0)
+ {
+ mp_limb_t l;
+ if (n > BITS_PER_MP_LIMB)
+ {
+ fprintf (stderr, "%ld bit parameter invalid (max %d bits)\n",
+ n, BITS_PER_MP_LIMB);
+ exit (1);
+ }
+ mpn_random (&l, 1);
+ return (l | (CNST_LIMB(1) << (n-1))) & LIMB_ONES(n);
+ }
+ else if (strcmp (s, "ones") == 0)
+ {
+ if (n > BITS_PER_MP_LIMB)
+ {
+ fprintf (stderr, "%ld bit parameter invalid (max %d bits)\n",
+ n, BITS_PER_MP_LIMB);
+ exit (1);
+ }
+ return LIMB_ONES (n);
+ }
+ else if (*s != '\0')
+ {
+ fprintf (stderr, "invalid r parameter: %s\n", s_orig);
+ exit (1);
+ }
+
+ return n;
+}
+
+
+void
+routine_find (struct choice_t *c, const char *s_orig)
+{
+ const char *s;
+ int i;
+ size_t nlen;
+
+ c->name = s_orig;
+ s = strchr (s_orig, '*');
+ if (s != NULL)
+ {
+ c->scale = atof(s_orig);
+ s++;
+ }
+ else
+ {
+ c->scale = 1.0;
+ s = s_orig;
+ }
+
+ for (i = 0; i < numberof (routine); i++)
+ {
+ nlen = strlen (routine[i].name);
+ if (memcmp (s, routine[i].name, nlen) != 0)
+ continue;
+
+ if (s[nlen] == '.')
+ {
+ /* match, with a .r parameter */
+
+ if (! (routine[i].flag & (FLAG_R|FLAG_R_OPTIONAL)))
+ {
+ fprintf (stderr,
+ "Choice %s bad: doesn't take a \".<r>\" parameter\n",
+ s_orig);
+ exit (1);
+ }
+
+ c->p = &routine[i];
+ c->r = r_string (s + nlen + 1);
+ return;
+ }
+
+ if (s[nlen] == '\0')
+ {
+ /* match, with no parameter */
+
+ if (routine[i].flag & FLAG_R)
+ {
+ fprintf (stderr,
+ "Choice %s bad: needs a \".<r>\" parameter\n",
+ s_orig);
+ exit (1);
+ }
+
+ c->p = &routine[i];
+ c->r = 0;
+ return;
+ }
+ }
+
+ fprintf (stderr, "Choice %s unrecognised\n", s_orig);
+ exit (1);
+}
+
+
+void
+usage (void)
+{
+ int i;
+
+ speed_time_init ();
+
+ printf ("Usage: speed [-options] -s size <routine>...\n");
+ printf ("Measure the speed of some routines.\n");
+ printf ("Times are in seconds, accuracy is shown.\n");
+ printf ("\n");
+ printf (" -p num set precision as number of time units each routine must run\n");
+ printf (" -s size[-end][,size[-end]]... sizes to measure\n");
+ printf (" single sizes or ranges, sep with comma or use multiple -s\n");
+ printf (" -t step step through sizes by given amount\n");
+ printf (" -f factor step through sizes by given factor (eg. 1.05)\n");
+ printf (" -r show times as ratios of the first routine\n");
+ printf (" -d show times as difference from the first routine\n");
+ printf (" -D show times as difference from previous size shown\n");
+ printf (" -c show times in CPU cycles\n");
+ printf (" -C show times in cycles per limb\n");
+ printf (" -u print resource usage (memory) at end\n");
+ printf (" -P name output plot files \"name.gnuplot\" and \"name.data\"\n");
+ printf (" -a <type> use given data: random(default), random2, zeros, aas, ffs, 2fd\n");
+ printf (" -x, -y, -w, -W <align> specify data alignments, sources and dests\n");
+ printf (" -o addrs print addresses of data blocks\n");
+ printf ("\n");
+ printf ("If both -t and -f are used, it means step by the factor or the step, whichever\n");
+ printf ("is greater.\n");
+ printf ("If both -C and -D are used, it means cycles per however many limbs between a\n");
+ printf ("size and the previous size.\n");
+ printf ("\n");
+ printf ("After running with -P, plots can be viewed with Gnuplot or Quickplot.\n");
+ printf ("\"gnuplot name.gnuplot\" (use \"set logscale xy; replot\" at the prompt for\n");
+ printf ("a log/log plot).\n");
+ printf ("\"quickplot -s name.data\" (has interactive zooming, and note -s is important\n");
+ printf ("when viewing more than one routine, it means same axis scales for all data).\n");
+ printf ("\n");
+ printf ("The available routines are as follows.\n");
+ printf ("\n");
+
+ for (i = 0; i < numberof (routine); i++)
+ {
+ if (routine[i].flag & FLAG_R)
+ printf ("\t%s.r\n", routine[i].name);
+ else if (routine[i].flag & FLAG_R_OPTIONAL)
+ printf ("\t%s (optional .r)\n", routine[i].name);
+ else
+ printf ("\t%s\n", routine[i].name);
+ }
+ printf ("\n");
+ printf ("Routines with a \".r\" need an extra parameter, for example mpn_lshift.6\n");
+ printf ("r should be in decimal, or use 0xN for hexadecimal.\n");
+ printf ("\n");
+ printf ("Special forms for r are \"<N>bits\" for a random N bit number, \"<N>ones\" for\n");
+ printf ("N one bits, or \"aas\" for 0xAA..AA.\n");
+ printf ("\n");
+ printf ("Times for sizes out of the range accepted by a routine are shown as 0.\n");
+ printf ("The fastest routine at each size is marked with a # (free form output only).\n");
+ printf ("\n");
+ printf ("%s", speed_time_string);
+ printf ("\n");
+ printf ("Gnuplot home page http://www.gnuplot.info/\n");
+ printf ("Quickplot home page http://quickplot.sourceforge.net/\n");
+}
+
+void
+check_align_option (const char *name, mp_size_t align)
+{
+ if (align < 0 || align > SPEED_TMP_ALLOC_ADJUST_MASK)
+ {
+ fprintf (stderr, "Alignment request out of range: %s %ld\n",
+ name, (long) align);
+ fprintf (stderr, " should be 0 to %d (limbs), inclusive\n",
+ SPEED_TMP_ALLOC_ADJUST_MASK);
+ exit (1);
+ }
+}
+
+int
+main (int argc, char *argv[])
+{
+ int i;
+ int opt;
+
+ /* Unbuffered so output goes straight out when directed to a pipe or file
+ and isn't lost on killing the program half way. */
+ setbuf (stdout, NULL);
+
+ for (;;)
+ {
+ opt = getopt(argc, argv, "a:CcDdEFf:o:p:P:rRs:t:ux:y:w:W:z");
+ if (opt == EOF)
+ break;
+
+ switch (opt) {
+ case 'a':
+ if (strcmp (optarg, "random") == 0) option_data = DATA_RANDOM;
+ else if (strcmp (optarg, "random2") == 0) option_data = DATA_RANDOM2;
+ else if (strcmp (optarg, "zeros") == 0) option_data = DATA_ZEROS;
+ else if (strcmp (optarg, "aas") == 0) option_data = DATA_AAS;
+ else if (strcmp (optarg, "ffs") == 0) option_data = DATA_FFS;
+ else if (strcmp (optarg, "2fd") == 0) option_data = DATA_2FD;
+ else
+ {
+ fprintf (stderr, "unrecognised data option: %s\n", optarg);
+ exit (1);
+ }
+ break;
+ case 'C':
+ if (option_unit != UNIT_SECONDS) goto bad_unit;
+ option_unit = UNIT_CYCLESPERLIMB;
+ break;
+ case 'c':
+ if (option_unit != UNIT_SECONDS)
+ {
+ bad_unit:
+ fprintf (stderr, "cannot use more than one of -c, -C\n");
+ exit (1);
+ }
+ option_unit = UNIT_CYCLES;
+ break;
+ case 'D':
+ if (option_cmp != CMP_ABSOLUTE) goto bad_cmp;
+ option_cmp = CMP_DIFFPREV;
+ break;
+ case 'd':
+ if (option_cmp != CMP_ABSOLUTE)
+ {
+ bad_cmp:
+ fprintf (stderr, "cannot use more than one of -d, -D, -r\n");
+ exit (1);
+ }
+ option_cmp = CMP_DIFFERENCE;
+ break;
+ case 'E':
+ option_square = 1;
+ break;
+ case 'F':
+ option_square = 2;
+ break;
+ case 'f':
+ option_factor = atof (optarg);
+ if (option_factor <= 1.0)
+ {
+ fprintf (stderr, "-f factor must be > 1.0\n");
+ exit (1);
+ }
+ break;
+ case 'o':
+ speed_option_set (optarg);
+ break;
+ case 'P':
+ option_gnuplot = 1;
+ option_gnuplot_basename = optarg;
+ break;
+ case 'p':
+ speed_precision = atoi (optarg);
+ break;
+ case 'R':
+ option_seed = time (NULL);
+ break;
+ case 'r':
+ if (option_cmp != CMP_ABSOLUTE)
+ goto bad_cmp;
+ option_cmp = CMP_RATIO;
+ break;
+ case 's':
+ {
+ char *s;
+ for (s = strtok (optarg, ","); s != NULL; s = strtok (NULL, ","))
+ {
+ if (size_num == size_allocnum)
+ {
+ size_array = (struct size_array_t *)
+ __gmp_allocate_or_reallocate
+ (size_array,
+ size_allocnum * sizeof(size_array[0]),
+ (size_allocnum+10) * sizeof(size_array[0]));
+ size_allocnum += 10;
+ }
+ if (sscanf (s, "%ld-%ld",
+ &size_array[size_num].start,
+ &size_array[size_num].end) != 2)
+ {
+ size_array[size_num].start = size_array[size_num].end
+ = atol (s);
+ }
+
+ if (size_array[size_num].start < 0
+ || size_array[size_num].end < 0
+ || size_array[size_num].start > size_array[size_num].end)
+ {
+ fprintf (stderr, "invalid size parameter: %s\n", s);
+ exit (1);
+ }
+
+ size_num++;
+ }
+ }
+ break;
+ case 't':
+ option_step = atol (optarg);
+ if (option_step < 1)
+ {
+ fprintf (stderr, "-t step must be >= 1\n");
+ exit (1);
+ }
+ break;
+ case 'u':
+ option_resource_usage = 1;
+ break;
+ case 'z':
+ sp.cache = 1;
+ break;
+ case 'x':
+ sp.align_xp = atol (optarg);
+ check_align_option ("-x", sp.align_xp);
+ break;
+ case 'y':
+ sp.align_yp = atol (optarg);
+ check_align_option ("-y", sp.align_yp);
+ break;
+ case 'w':
+ sp.align_wp = atol (optarg);
+ check_align_option ("-w", sp.align_wp);
+ break;
+ case 'W':
+ sp.align_wp2 = atol (optarg);
+ check_align_option ("-W", sp.align_wp2);
+ break;
+ case '?':
+ exit(1);
+ }
+ }
+
+ if (optind >= argc)
+ {
+ usage ();
+ exit (1);
+ }
+
+ if (size_num == 0)
+ {
+ fprintf (stderr, "-s <size> must be specified\n");
+ exit (1);
+ }
+
+ gmp_randinit_default (__gmp_rands);
+ __gmp_rands_initialized = 1;
+ gmp_randseed_ui (__gmp_rands, option_seed);
+
+ choice = (struct choice_t *) (*__gmp_allocate_func)
+ ((argc - optind) * sizeof(choice[0]));
+ for ( ; optind < argc; optind++)
+ {
+ struct choice_t c;
+ routine_find (&c, argv[optind]);
+ choice[num_choices] = c;
+ num_choices++;
+ }
+
+ if ((option_cmp == CMP_RATIO || option_cmp == CMP_DIFFERENCE) &&
+ num_choices < 2)
+ {
+ fprintf (stderr, "WARNING, -d or -r does nothing when only one routine requested\n");
+ }
+
+ speed_time_init ();
+ if (option_unit == UNIT_CYCLES || option_unit == UNIT_CYCLESPERLIMB)
+ speed_cycletime_need_cycles ();
+ else
+ speed_cycletime_need_seconds ();
+
+ if (option_gnuplot)
+ {
+ run_gnuplot (argc, argv);
+ }
+ else
+ {
+ if (option_unit == UNIT_SECONDS)
+ printf ("overhead %.9f secs", speed_measure (speed_noop, NULL));
+ else
+ printf ("overhead %.2f cycles",
+ speed_measure (speed_noop, NULL) / speed_cycletime);
+ printf (", precision %d units of %.2e secs",
+ speed_precision, speed_unittime);
+
+ if (speed_cycletime == 1.0 || speed_cycletime == 0.0)
+ printf (", CPU freq unknown\n");
+ else
+ printf (", CPU freq %.2f MHz\n", 1e-6/speed_cycletime);
+
+ printf (" ");
+ for (i = 0; i < num_choices; i++)
+ printf (" %*s", COLUMN_WIDTH, choice[i].name);
+ printf ("\n");
+
+ run_all (stdout);
+ }
+
+ if (option_resource_usage)
+ {
+#if HAVE_GETRUSAGE
+ {
+ /* This doesn't give data sizes on linux 2.0.x, only utime. */
+ struct rusage r;
+ if (getrusage (RUSAGE_SELF, &r) != 0)
+ perror ("getrusage");
+ else
+ printf ("getrusage(): utime %ld.%06ld data %ld stack %ld maxresident %ld\n",
+ r.ru_utime.tv_sec, r.ru_utime.tv_usec,
+ r.ru_idrss, r.ru_isrss, r.ru_ixrss);
+ }
+#else
+ printf ("getrusage() not available\n");
+#endif
+
+ /* Linux kernel. */
+ {
+ char buf[128];
+ sprintf (buf, "/proc/%d/status", getpid());
+ if (access (buf, R_OK) == 0)
+ {
+ sprintf (buf, "cat /proc/%d/status", getpid());
+ system (buf);
+ }
+
+ }
+ }
+
+ return 0;
+}
projects / msp430-gcc.git / blobdiff