kc3-lang/libxkbcommon/bench/key-proc.c

Branch : - branch - android master - tag -

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• Author : Ran Benita
  Date : 2018-07-05 18:13:14
  Hash : c8e17eed
  Message : bench: simplify the bench helpers Trim the API a bit. Also, just always use gettimeofday(), which is portable. Hopefully the system clock doesn't change while a benchmark is running. Signed-off-by: Ran Benita <ran234@gmail.com>

• bench/key-proc.c

• /*
   * Copyright © 2012 Ran Benita <ran234@gmail.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #include <stdlib.h>
  #include <time.h>
  
  #include "../test/test.h"
  #include "bench.h"
  
  #define BENCHMARK_ITERATIONS 20000000
  
  static void
  bench_key_proc(struct xkb_state *state)
  {
      int8_t keys[256] = { 0 };
      xkb_keycode_t keycode;
      xkb_keysym_t keysym;
      int i;
  
      for (i = 0; i < BENCHMARK_ITERATIONS; i++) {
          keycode = (rand() % (255 - 9)) + 9;
          if (keys[keycode]) {
              xkb_state_update_key(state, keycode, XKB_KEY_UP);
              keys[keycode] = 0;
              keysym = xkb_state_key_get_one_sym(state, keycode);
              (void) keysym;
          } else {
              xkb_state_update_key(state, keycode, XKB_KEY_DOWN);
              keys[keycode] = 1;
          }
      }
  }
  
  int
  main(void)
  {
      struct xkb_context *ctx;
      struct xkb_keymap *keymap;
      struct xkb_state *state;
      struct bench bench;
      char *elapsed;
  
      ctx = test_get_context(0);
      assert(ctx);
  
      keymap = test_compile_rules(ctx, "evdev", "pc104", "us,ru,il,de",
                                  ",,,neo", "grp:menu_toggle");
      assert(keymap);
  
      state = xkb_state_new(keymap);
      assert(state);
  
      xkb_context_set_log_level(ctx, XKB_LOG_LEVEL_CRITICAL);
      xkb_context_set_log_verbosity(ctx, 0);
  
      srand(time(NULL));
  
      bench_start(&bench);
      bench_key_proc(state);
      bench_stop(&bench);
  
      elapsed = bench_elapsed_str(&bench);
      fprintf(stderr, "ran %d iterations in %ss\n",
              BENCHMARK_ITERATIONS, elapsed);
      free(elapsed);
  
      xkb_state_unref(state);
      xkb_keymap_unref(keymap);
      xkb_context_unref(ctx);
  
      return 0;
  }