uspace/app/hbench/malloc/malloc2.c

   1 /*
   2  * Copyright (c) 2018 Jiri Svoboda
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @addtogroup hbench
  30  * @{
  31  */
  32
  33 #include <stdlib.h>
  34 #include <stdio.h>
  35 #include "../hbench.h"
  36
  37 static bool runner(bench_env_t *env, bench_run_t *run, uint64_t niter)
  38 {
  39         bench_run_start(run);
  40
  41         void **p = malloc(niter * sizeof(void *));
  42         if (p == NULL) {
  43                 return bench_run_fail(run, "failed to allocate backend array (%" PRIu64 "B)",
  44                     niter * sizeof(void *));
  45         }
  46
  47         for (uint64_t count = 0; count < niter; count++) {
  48                 p[count] = malloc(1);
  49                 if (p[count] == NULL) {
  50                         for (uint64_t j = 0; j < count; j++) {
  51                                 free(p[j]);
  52                         }
  53                         free(p);
  54                         return bench_run_fail(run,
  55                             "failed to allocate 1B in run %" PRIu64 " (out of %" PRIu64 ")",
  56                             count, niter);
  57                 }
  58         }
  59
  60         for (uint64_t count = 0; count < niter; count++)
  61                 free(p[count]);
  62
  63         free(p);
  64
  65         bench_run_stop(run);
  66
  67         return true;
  68 }
  69
  70 benchmark_t benchmark_malloc2 = {
  71         .name = "malloc2",
  72         .desc = "User-space memory allocator benchmark, allocate many small blocks",
  73         .entry = &runner,
  74         .setup = NULL,
  75         .teardown = NULL
  76 };
  77
  78 /** @}
  79  */